8e07cf65d8
Guessing groups is invoked from some group backends to find the groups of a user (e.g. from LdapGroupBackend). The groups of the calling user are needed for the change etag computation. Hence if guessing groups is slow this has direct impact on the speed of the change etag computation which makes it interesting to know how much latency we spend on guessing relevant groups. Change-Id: Ibae879a702af007f1a326d01d15553487926bc4a Signed-off-by: Edwin Kempin <ekempin@google.com>
203 lines
7.3 KiB
Plaintext
203 lines
7.3 KiB
Plaintext
= Gerrit Code Review - Metrics
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Metrics about Gerrit's internal state can be sent to external monitoring systems
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via plugins. See the link:dev-plugins.html#metrics[plugin documentation] for
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details of plugin implementations.
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== Metrics
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The following metrics are reported.
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=== General
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* `build/label`: Version of Gerrit server software.
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* `events`: Triggered events.
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=== Actions
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* `action/retry_attempt_counts`: Distribution of number of attempts made
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by RetryHelper to execute an action (1 == single attempt, no retry)
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* `action/retry_timeout_count`: Number of action executions of RetryHelper
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that ultimately timed out
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=== Pushes
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* `receivecommits/changes`: histogram of number of changes processed
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in a single upload, split up by update type (new change created,
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existing changed updated, change autoclosed).
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* `receivecommits/latency`: latency per change for processing a push,
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split up by update type (create+replace, and autoclose)
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* `receivecommits/timeout`: number of timeouts during push processing.
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=== Process
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* `proc/birth_timestamp`: Time at which the Gerrit process started.
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* `proc/uptime`: Uptime of the Gerrit process.
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* `proc/cpu/usage`: CPU time used by the Gerrit process.
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* `proc/num_open_fds`: Number of open file descriptors.
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* `proc/jvm/memory/heap_committed`: Amount of memory guaranteed for user objects.
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* `proc/jvm/memory/heap_used`: Amount of memory holding user objects.
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* `proc/jvm/memory/non_heap_committed`: Amount of memory guaranteed for classes,
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etc.
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* `proc/jvm/memory/non_heap_used`: Amount of memory holding classes, etc.
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* `proc/jvm/memory/object_pending_finalization_count`: Approximate number of
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objects needing finalization.
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* `proc/jvm/gc/count`: Number of GCs.
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* `proc/jvm/gc/time`: Approximate accumulated GC elapsed time.
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* `proc/jvm/thread/num_live`: Current live thread count.
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=== Caches
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* `caches/memory_cached`: Memory entries.
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* `caches/memory_hit_ratio`: Memory hit ratio.
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* `caches/memory_eviction_count`: Memory eviction count.
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* `caches/disk_cached`: Disk entries used by persistent cache.
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* `caches/disk_hit_ratio`: Disk hit ratio for persistent cache.
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=== HTTP
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* `http/server/error_count`: Rate of REST API error responses.
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* `http/server/success_count`: Rate of REST API success responses.
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* `http/server/rest_api/count`: Rate of REST API calls by view.
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* `http/server/rest_api/change_id_type`: Rate of REST API calls by change ID type.
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* `http/server/rest_api/error_count`: Rate of REST API calls by view.
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* `http/server/rest_api/server_latency`: REST API call latency by view.
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* `http/server/rest_api/response_bytes`: Size of REST API response on network
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(may be gzip compressed) by view.
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* `http/server/rest_api/change_json/to_change_info_latency`: Latency for
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toChangeInfo invocations in ChangeJson.
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* `http/server/rest_api/change_json/to_change_infos_latency`: Latency for
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toChangeInfos invocations in ChangeJson.
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* `http/server/rest_api/change_json/format_query_results_latency`: Latency for
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formatQueryResults invocations in ChangeJson.
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* `http/server/rest_api/ui_actions/latency`: Latency for RestView#getDescription calls.
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=== Query
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* `query/query_latency`: Successful query latency, accumulated over the life
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of the process.
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=== Core Queues
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The following queues support metrics:
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* default `WorkQueue`
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* index batch
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* index interactive
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* receive commits
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* send email
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* ssh batch worker
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* ssh command start
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* ssh interactive worker
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* ssh stream worker
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Each queue provides the following metrics:
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* `queue/<queue_name>/pool_size`: Current number of threads in the pool
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* `queue/<queue_name>/max_pool_size`: Maximum allowed number of threads in the pool
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* `queue/<queue_name>/active_threads`: Number of threads that are actively executing tasks
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* `queue/<queue_name>/scheduled_tasks`: Number of scheduled tasks in the queue
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* `queue/<queue_name>/total_scheduled_tasks_count`: Total number of tasks that have been scheduled
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* `queue/<queue_name>/total_completed_tasks_count`: Total number of tasks that have completed execution
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=== SSH sessions
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* `sshd/sessions/connected`: Number of currently connected SSH sessions.
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* `sshd/sessions/created`: Rate of new SSH sessions.
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* `sshd/sessions/authentication_failures`: Rate of SSH authentication failures.
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=== SQL connections
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* `sql/connection_pool/connections`: SQL database connections.
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=== Topics
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* `topic/cross_project_submit`: number of cross-project topic submissions.
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* `topic/cross_project_submit_completed`: number of cross-project
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topic submissions that concluded successfully.
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=== JGit
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* `jgit/block_cache/cache_used`: Bytes of memory retained in JGit block cache.
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* `jgit/block_cache/open_files`: File handles held open by JGit block cache.
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=== Git
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* `git/upload-pack/request_count`: Total number of git-upload-pack requests.
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* `git/upload-pack/phase_counting`: Time spent in the 'Counting...' phase.
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* `git/upload-pack/phase_compressing`: Time spent in the 'Compressing...' phase.
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* `git/upload-pack/phase_writing`: Time spent transferring bytes to client.
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* `git/upload-pack/pack_bytes`: Distribution of sizes of packs sent to clients.
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=== BatchUpdate
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* `batch_update/execute_change_ops`: BatchUpdate change update latency,
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excluding reindexing
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=== NoteDb
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* `notedb/update_latency`: NoteDb update latency by table.
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* `notedb/stage_update_latency`: Latency for staging updates to NoteDb by table.
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* `notedb/read_latency`: NoteDb read latency by table.
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* `notedb/parse_latency`: NoteDb parse latency by table.
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* `notedb/auto_rebuild_latency`: NoteDb auto-rebuilding latency by table.
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* `notedb/auto_rebuild_failure_count`: NoteDb auto-rebuilding attempts that
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failed by table.
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* `notedb/external_id_update_count`: Total number of external ID updates.
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* `notedb/read_all_external_ids_latency`: Latency for reading all
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external ID's from NoteDb.
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=== Permissions
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* `permissions/project_state/computation_latency`: Latency to compute current access
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sections on a project by traversing it's parents.
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* `permissions/permission_collection/filter_latency`: Latency to filter access sections
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by user and ref.
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* `permissions/ref_filter/full_filter_count`: Rate of full ref filter operations
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* `permissions/ref_filter/skip_filter_count`: Rate of ref filter operations where
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we skip full evaluation because the user can read all refs
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=== Reviewer Suggestion
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* `reviewer_suggestion/query_accounts`: Latency for querying accounts for
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reviewer suggestion.
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* `reviewer_suggestion/recommend_accounts`: Latency for recommending accounts
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for reviewer suggestion.
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* `reviewer_suggestion/load_accounts`: Latency for loading accounts for
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reviewer suggestion.
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* `reviewer_suggestion/query_groups`: Latency for querying groups for reviewer
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suggestion.
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=== Repo Sequences
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* `sequence/next_id_latency`: Latency of requesting IDs from repo sequences.
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=== Plugin
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* `plugin/latency`: Latency for plugin invocation.
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* `plugin/error_count`: Number of plugin errors.
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=== Group
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* `group/guess_relevant_groups_latency`: Latency for guessing relevant groups.
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=== Replication Plugin
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* `plugins/replication/replication_latency`: Time spent pushing to remote
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destination.
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* `plugins/replication/replication_delay`: Time spent waiting before pushing to
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remote destination.
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* `plugins/replication/replication_retries`: Number of retries when pushing to
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remote destination.
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=== License
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* `license/cla_check_count`: Total number of CLA check requests.
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GERRIT
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------
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Part of link:index.html[Gerrit Code Review]
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SEARCHBOX
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---------
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