diff --git a/doc/source/test_plans/reliability/version_2/plan.rst b/doc/source/test_plans/reliability/version_2/plan.rst index bf829d2..5e8204a 100644 --- a/doc/source/test_plans/reliability/version_2/plan.rst +++ b/doc/source/test_plans/reliability/version_2/plan.rst @@ -1,4 +1,4 @@ -.. _reliability_testing: +.. _reliability_testing_version_2: ========================================== OpenStack reliability testing. Version 2.0 @@ -18,11 +18,13 @@ OpenStack reliability testing. Version 2.0 - **MTTR** - mean time to recover service performance after the fault. - - **Service Downtime** - the time when service was not available and number - of errors is more than defined by SLA. + - **Service Downtime** - the time when service was not available. - - **Operation Degradation** - the difference in operation performance - compared with performance when service operates normally. + - **Absolute performance degradation** - is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + + - **Relative performance degradation** - is the ratio between the mean + of operation duration during recovery period and the baseline's. - **Fault injection** - the function that emulates failure in software or hardware. @@ -201,14 +203,14 @@ Overall the following metrics need to be collected: - How long does it takes to recover service performance after the failure. * - 1 - - Operation Degradation + - Absolute performance degradation - sec - the mean of difference in operation performance during recovery period and operation performance when service operates normally. * - 1 - - Operation Degradation Ratio - - sec + - Relative performance degradation + - ratio - the ratio between operation performance during recovery period and operation performance when service operates normally. @@ -252,13 +254,45 @@ succeed operation. To find the recovery period we first calculate the mean duration of consequent operations with sliding window. The period is treated as `Recovery period` when mean operation duration is significantly more than -the mean operation duration in the baseline. `Operation degradation` is -calculated as difference between mean of operation duration during Recovery -period and the baseline's. `Operation ratio` is the ratio between mean of -operation duration during Recovery period and the baseline's. +the mean operation duration in the baseline. The average duration of Recovery +period is `MTTR` value. `Absolute performance degradatio` is calculated as +difference between mean of operation duration during Recovery period and +the baseline's. `Relative performance degradation` is the ratio between +mean of operation duration during Recovery period and the baseline's. + + +How to run +^^^^^^^^^^ + +Prerequisites: + * Install `Rally` tool and configure deployment parameters + + * Verify that Rally is properly installed by running ``rally show flavors`` + + * Install `os-faults` library: ``pip install os-faults`` + + * Configure cloud and power management parameters, refer to `os-faults-cfg` + * Verify parameters by running ``os-inject-fault -v`` + + * Install `RallyRunners` tool: ``pip install rally-runners`` + +Run scenarios: + ``rally-reliability -s SCENARIO -o OUTPUT -b BOOK`` + +To show full list of scenarios: + ``rally-reliability -h`` + + +Reports +======= + +Test plan execution reports: + * :ref:`reliability_test_results_version_2` .. references: .. _Rally: https://rally.readthedocs.io/ .. _os-faults: https://os-faults.readthedocs.io/ +.. _os-faults-cfg: http://os-faults.readthedocs.io/en/latest/readme.html#usage +.. _RallyRunners: https://github.com/shakhat/rally-runners diff --git a/doc/source/test_results/reliability/version_2/index.rst b/doc/source/test_results/reliability/version_2/index.rst new file mode 100644 index 0000000..84b6020 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/index.rst @@ -0,0 +1,42 @@ +.. _reliability_test_results_version_2: + +======================================== +OpenStack reliability testing. Version 2 +======================================== + +Test results +============ + +Environment description +^^^^^^^^^^^^^^^^^^^^^^^ + +This report contains results for :ref:`reliability_testing_version_2` +test plan. The data is collected in :ref:`intel_mirantis_performance_lab`. + + +Software +~~~~~~~~ + +This section describes installed software. + ++-----------------+--------------------------------------------+ +| Parameter | Value | ++-----------------+--------------------------------------------+ +| OS | Ubuntu 14.04.3 | ++-----------------+--------------------------------------------+ +| OpenStack | Fuel 9.0 (Mitaka) | ++-----------------+--------------------------------------------+ +| Networking | Neutron OVS ML2 plugin with VxLAN and DVR | ++-----------------+--------------------------------------------+ + + +Reports +^^^^^^^ + +.. toctree:: + :maxdepth: 1 + :glob: + + reports/*/*/index + +Reports are calculated on :download:`Raw Rally data ` diff --git a/doc/source/test_results/reliability/version_2/raw/raw_data.tar.xz b/doc/source/test_results/reliability/version_2/raw/raw_data.tar.xz new file mode 100644 index 0000000..6221ad9 Binary files /dev/null and b/doc/source/test_results/reliability/version_2/raw/raw_data.tar.xz differ diff --git a/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/index.rst b/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/index.rst new file mode 100644 index 0000000..5997eb1 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/index.rst @@ -0,0 +1,296 @@ +Keystone authentication with kill of Keystone on one node +========================================================= + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + {% set repeat = repeat|default(5) %} + Authenticate.keystone: + {% for iteration in range(repeat) %} + - + runner: + type: "constant_for_duration" + duration: 30 + concurrency: 20 + context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: kill keystone service on one node + trigger: + name: event + args: + unit: iteration + at: [100] + {% endfor %} + + +Summary +------- + +In Fuel architecture Keystone is deployed behind Apache2, which in turn are +behind NGINX front-end. In this scenario we kill Keystone processes running +on one of controller nodes. + ++-----------------------+------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+============+=======================================+===========================================+ +| 0.038 ±0.081 | 2.28 ±0.23 | 1.21 ±0.35 | 9.1 ±2.3 | ++-----------------------+------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 78 | 0.12 | 0.13 | 0.041 | 0.23 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+----------------+ +| # | Downtime, s | ++=====+================+ +| 1 | 0.0034 ±0.0034 | ++-----+----------------+ +| 2 | 0.0282 ±0.0014 | ++-----+----------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 2.711 ±0.023 | 1.30 ±0.39 | 10.8 ±3.0 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #2 +^^^^^^ + +.. image:: plot_2.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 70 | 0.14 | 0.15 | 0.048 | 0.24 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+----------------+ +| # | Downtime, s | ++=====+================+ +| 1 | 0.0047 ±0.0047 | ++-----+----------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 2.722 ±0.026 | 1.66 ±0.43 | 11.9 ±2.9 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #3 +^^^^^^ + +.. image:: plot_3.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.15 | 0.16 | 0.058 | 0.27 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+----------------+ +| # | Downtime, s | ++=====+================+ +| 1 | 0.1147 ±0.0067 | ++-----+----------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 2.317 ±0.019 | 1.07 ±0.35 | 7.5 ±2.1 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #4 +^^^^^^ + +.. image:: plot_4.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 87 | 0.14 | 0.16 | 0.051 | 0.25 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+----------------+ +| # | Downtime, s | ++=====+================+ +| 1 | 0.0057 ±0.0057 | ++-----+----------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 1.695 ±0.015 | 1.11 ±0.29 | 8.0 ±1.8 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #5 +^^^^^^ + +.. image:: plot_5.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 87 | 0.14 | 0.15 | 0.051 | 0.26 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+----------------+ +| # | Downtime, s | ++=====+================+ +| 1 | 0.0166 ±0.0044 | ++-----+----------------+ +| 2 | 0.0162 ±0.0044 | ++-----+----------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 1.976 ±0.015 | 0.93 ±0.29 | 7.1 ±1.9 | ++-----+----------------------+---------------------------+------------------------+ + + diff --git a/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/plot_1.svg new file mode 100644 index 0000000..ada5856 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_keystone_service_on_one_node/plot_1.svg @@ -0,0 +1,5627 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: kill mysql service on one node + trigger: + name: event + args: + unit: iteration + at: [150] + + +Summary +------- + +In this scenario we kill one of MySQL servers while working with Keystone API. +In Fuel architecture MySQL is deployed with Galera in active-active mode, +however Keystone looses connection to DB with the following traces:: + + (_mysql_exceptions.OperationalError) (2013, "Lost connection to MySQL + server at 'reading initial communication packet', system error: 0") + ++-----------------------+-----------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+===========+=======================================+===========================================+ +| 14.7 ±1.4 | N/A | N/A | N/A | ++-----------------------+-----------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + + + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 135 | 0.071 | 0.074 | 0.012 | 0.09 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 14.7 ±2.0 | ++-----+---------------+ + + + + diff --git a/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_mysql_service_on_one_node/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/keystone/authenticate_with_kill_mysql_service_on_one_node/plot_1.svg new file mode 100644 index 0000000..0ad2b55 --- /dev/null +++ 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+ - + name: fault_injection + args: + action: restart keystone service on one node + trigger: + name: event + args: + unit: iteration + at: [100] + {% endfor %} + + +Summary +------- + +In Fuel architecture Keystone is deployed behind Apache2, which in turn are +behind NGINX front-end. In this scenario we restart Apache2 service, as result +Keystone becomes unavailable on one of controller nodes. + ++-----------------------+------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+============+=======================================+===========================================+ +| 1.07 ±0.76 | 5.44 ±0.47 | 0.41 ±0.22 | 4.7 ±2.0 | ++-----------------------+------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.071 | 0.077 | 0.017 | 0.13 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 0.88 ±0.75 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 3.549 ±0.034 | 0.51 ±0.25 | 7.6 ±3.3 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #2 +^^^^^^ + +.. image:: plot_2.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.13 | 0.13 | 0.0086 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 1.00 ±0.87 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 6.038 ±0.034 | 0.35 ±0.17 | 3.7 ±1.3 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #3 +^^^^^^ + +.. image:: plot_3.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.13 | 0.12 | 0.0077 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 0.26 ±0.12 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 6.123 ±0.037 | 0.43 ±0.25 | 4.4 ±2.0 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #4 +^^^^^^ + +.. image:: plot_4.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.13 | 0.13 | 0.0089 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 1.02 ±0.73 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 5.860 ±0.027 | 0.25 ±0.13 | 2.9 ±1.1 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #5 +^^^^^^ + +.. image:: plot_5.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 87 | 0.13 | 0.13 | 0.019 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 2.173 ±0.067 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | 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+========================================================= + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + {% set repeat = repeat|default(5) %} + Authenticate.keystone: + {% for iteration in range(repeat) %} + - + runner: + type: "constant_for_duration" + duration: 30 + concurrency: 5 + context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: restart memcached service on one node + trigger: + name: event + args: + unit: iteration + at: [100] + {% endfor %} + + +Summary +------- + +In this scenario we restart Memcached service on one of controller nodes. +Memcached is used as caching backend for Keystone, thus it's expected that +Keystone performance may degrade. + ++-----------------------+--------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+==============+=======================================+===========================================+ +| N/A | 0.458 ±0.068 | 0.057 ±0.034 | 1.46 ±0.27 | ++-----------------------+--------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 88 | 0.12 | 0.12 | 0.014 | 0.13 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + + + + +Run #2 +^^^^^^ + +.. image:: plot_2.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.12 | 0.12 | 0.0078 | 0.13 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 0.4059 ±0.0027 | 0.069 ±0.030 | 1.57 ±0.25 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #3 +^^^^^^ + +.. image:: plot_3.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 88 | 0.12 | 0.13 | 0.017 | 0.15 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + + + + +Run #4 +^^^^^^ + +.. image:: plot_4.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.12 | 0.12 | 0.01 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + + + + +Run #5 +^^^^^^ + +.. image:: plot_5.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 84 | 0.13 | 0.13 | 0.0086 | 0.14 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 0.5110 ±0.0037 | 0.045 ±0.037 | 1.35 ±0.29 | ++-----+----------------------+---------------------------+------------------------+ + + diff --git 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a/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/index.rst b/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/index.rst new file mode 100644 index 0000000..66e3bf3 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/index.rst @@ -0,0 +1,160 @@ +Create and list networks with kill of one of MySQL servers +========================================================== + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + {% set repeat = repeat|default(3) %} + NeutronNetworks.create_and_list_networks: + {% for iteration in range(repeat) %} + - + args: + network_create_args: {} + runner: + type: "constant_for_duration" + duration: 60 + concurrency: 4 + context: + users: + tenants: 1 + users_per_tenant: 1 + quotas: + neutron: + network: -1 + hooks: + - + name: fault_injection + args: + action: kill mysql service on one node + trigger: + name: event + args: + unit: iteration + at: [100] + {% endfor %} + + +Summary +------- + +In this scenario we kill one of MySQL servers while working with Neutron API. +In Fuel architecture MySQL is deployed with Galera in active-active mode, thus +no dramatic impact should occur. + ++-----------------------+------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+============+=======================================+===========================================+ +| N/A | 7.73 ±0.72 | 1.4 ±1.1 | 3.8 ±2.3 | ++-----------------------+------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 86 | 0.48 | 0.8 | 0.49 | 1.6 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + + + + +Run #2 +^^^^^^ + +.. image:: plot_2.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 85 | 0.46 | 0.5 | 0.12 | 0.7 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 6.824 ±0.093 | 1.5 ±1.2 | 4.1 ±2.5 | ++-----+----------------------+---------------------------+------------------------+ + + + + +Run #3 +^^^^^^ + +.. image:: plot_3.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 85 | 0.45 | 0.47 | 0.065 | 0.61 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 8.63 ±0.12 | 1.18 ±1.00 | 3.5 ±2.1 | ++-----+----------------------+---------------------------+------------------------+ + + diff --git a/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/plot_1.svg new file mode 100644 index 0000000..1c52082 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/neutron/create_and_list_networks_with_kill_mysql_service_on_one_node/plot_1.svg @@ -0,0 +1,1936 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + 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b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_disconnect_management_network_on_one_node_with_nova_scheduler_service/index.rst @@ -0,0 +1,119 @@ +Boot and delete VM with disabling management network on one of controllers +========================================================================== + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + NovaServers.boot_and_delete_server: + - + args: + flavor: + name: "m1.micro" + image: + name: "(^cirros.*uec$|TestVM)" + force_delete: false + runner: + type: "constant_for_duration" + duration: 600 + concurrency: 4 + context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: disconnect management network on one node with nova-scheduler service + trigger: + name: event + args: + unit: iteration + at: [50] + + +Summary +------- + +In this scenario we disable management network interface on one of controllers +(in Fuel architecture controller runs DB, MQ, API services, scheduler). +This emulates the case with networking outage (network port failure on machine +or switch). + +The outage causes all services to become unreachable from outside. Moreover, +the cluster remains broken even 10 minutes after the fault. + ++-----------------------+------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+============+=======================================+===========================================+ +| 358.0 ±2.7 | 149.0 ±2.1 | 24 ±17 | 5.7 ±3.4 | ++-----------------------+------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + + + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 36 | 5.5 | 5.2 | 0.6 | 6 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 126.32 ±0.82 | ++-----+---------------+ +| 2 | 231.7 ±6.5 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 149.0 ±4.6 | 24 ±17 | 5.7 ±3.4 | ++-----+----------------------+---------------------------+------------------------+ + + diff --git a/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_disconnect_management_network_on_one_node_with_nova_scheduler_service/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_disconnect_management_network_on_one_node_with_nova_scheduler_service/plot_1.svg new file mode 100644 index 0000000..84dbd28 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_disconnect_management_network_on_one_node_with_nova_scheduler_service/plot_1.svg @@ -0,0 +1,1657 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/index.rst b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/index.rst new file mode 100644 index 0000000..3a71c04 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/index.rst @@ -0,0 +1,81 @@ +Boot and delete VM with kill of RabbitMQ on one of nodes +======================================================== + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + NovaServers.boot_and_delete_server: + - + args: + flavor: + name: "m1.micro" + image: + name: "(^cirros.*uec$|TestVM)" + force_delete: false + runner: + type: "constant_for_duration" + duration: 240 + concurrency: 4 + context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: kill rabbitmq service on one node + trigger: + name: event + args: + unit: iteration + at: [60] + + +Summary +------- + +In this scenario we kill one of running RabbitMQ servers. Once killed RabbitMQ +gets restarted automatically by Pacemaker. + +The cloud stays stable, no errors, nor significant performance degradation +observed. Oslo.messaging library handles the loss of connection to RabbitMQ +and reconnects to one of other servers automatically:: + + AMQP server on 10.43.0.3:5673 is unreachable: timed out. Trying again in + 1 seconds. + ... + Reconnected to AMQP server on 10.43.0.6:5673 via [amqp] client + + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 45 | 5.8 | 5.8 | 0.3 | 6.1 | ++-----------+-------------+-----------+-----------+---------------------+ + + + + + diff --git a/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/plot_1.svg new file mode 100644 index 0000000..4517be0 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_kill_rabbitmq_service_on_one_node/plot_1.svg @@ -0,0 +1,1636 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + diff --git a/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/index.rst b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/index.rst new file mode 100644 index 0000000..46c7bf3 --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/index.rst @@ -0,0 +1,113 @@ +Boot and delete VM with reboot of one of controllers +==================================================== + +This report is generated on results collected by execution of the following +Rally scenario: + +.. code-block:: yaml + + --- + NovaServers.boot_and_delete_server: + - + args: + flavor: + name: "m1.micro" + image: + name: "(^cirros.*uec$|TestVM)" + force_delete: false + runner: + type: "constant_for_duration" + duration: 600 + concurrency: 4 + context: + users: + tenants: 1 + users_per_tenant: 1 + hooks: + - + name: fault_injection + args: + action: reboot one node with rabbitmq service + trigger: + name: event + args: + unit: iteration + at: [50] + + +Summary +------- + +In this scenario we reboot one of controllers (in Fuel architecture controller +runs DB, MQ, API services, scheduler). The observed recovery period corresponds +to time needed for a node to reboot, start services and get back to sync state. + ++-----------------------+--------------+---------------------------------------+-------------------------------------------+ +| Service downtime, s | MTTR, s | Absolute performance degradation, s | Relative performance degradation, ratio | ++=======================+==============+=======================================+===========================================+ +| 8.7 ±1.6 | 286.89 ±0.87 | 14.7 ±4.7 | 3.85 ±0.91 | ++-----------------------+--------------+---------------------------------------+-------------------------------------------+ + +Metrics: + * `Service downtime` is the time interval between the first and + the last errors. + * `MTTR` is the mean time to recover service performance after + the fault. + * `Absolute performance degradation` is an absolute difference between + the mean of operation duration during recovery period and the baseline's. + * `Relative performance degradation` is the ratio between the mean + of operation duration during recovery period and the baseline's. + + + +Details +------- + +This section contains individual data for particular scenario runs. + + + +Run #1 +^^^^^^ + +.. image:: plot_1.svg + +Baseline +~~~~~~~~ + +Baseline samples are collected before the start of fault injection. They are +used to estimate service performance degradation after the fault. + ++-----------+-------------+-----------+-----------+---------------------+ +| Samples | Median, s | Mean, s | Std dev | 95% percentile, s | ++===========+=============+===========+===========+=====================+ +| 36 | 5.1 | 5.2 | 0.63 | 6.1 | ++-----------+-------------+-----------+-----------+---------------------+ + + +Service downtime +~~~~~~~~~~~~~~~~ + +The tested service is not available during the following time period(s). + ++-----+---------------+ +| # | Downtime, s | ++=====+===============+ +| 1 | 8.7 ±2.5 | ++-----+---------------+ + + + +Service performance degradation +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The tested service has measurable performance degradation during the +following time period(s). + ++-----+----------------------+---------------------------+------------------------+ +| # | Time to recover, s | Absolute degradation, s | Relative degradation | ++=====+======================+===========================+========================+ +| 1 | 286.89 ±0.76 | 14.7 ±4.7 | 3.85 ±0.91 | ++-----+----------------------+---------------------------+------------------------+ + + diff --git a/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/plot_1.svg b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/plot_1.svg new file mode 100644 index 0000000..5b02efc --- /dev/null +++ b/doc/source/test_results/reliability/version_2/reports/nova/boot_and_delete_with_reboot_one_node_with_rabbitmq_service/plot_1.svg @@ -0,0 +1,1948 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +