15e21010a8
Under pressure, the default monitor timeout value of 20 seconds is not enough to prevent unnecessary failovers of the ovn-dbs pacemaker resource. While spawning a few VMs in the same time this could lead to unnecessary movements of master DB, then re-connections of ovn-controllers (slaves are read-only), further peaks of load on DBs, and at the end it could lead to snowball effect. Now this value can be configurable by dbs_timeout in tripleo::profile::pacemaker::ovn_dbs_bundle and by default is set to 60s. Change-Id: Ib95c6b7614631eed264d42e6cf61672b705e7893 Signed-off-by: Kamil Sambor <ksambor@redhat.com>
10 lines
559 B
YAML
10 lines
559 B
YAML
---
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features:
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- |
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Under pressure, the default monitor timeout value of 20 seconds is not
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enough to prevent unnecessary failovers of the ovn-dbs pacemaker resource.
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While spawning a few VMs in the same time this could lead to unnecessary
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movements of master DB, then re-connections of ovn-controllers (slaves are
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read-only), further peaks of load on DBs, and at the end it could lead to
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snowball effect. Now this value can be configurable by dbs_timeout in
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tripleo::profile::pacemaker::ovn_dbs_bundle and by default is set to 60s. |