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new 97927ceedbf IGNITE-28579 Update performance statistics doc (#13083)
97927ceedbf is described below
commit 97927ceedbfbb469a2d5d82239a5e7f52ddd66a9
Author: Aleksandr Chesnokov <[email protected]>
AuthorDate: Wed Apr 29 13:22:52 2026 +0300
IGNITE-28579 Update performance statistics doc (#13083)
(cherry picked from commit 4e64bfb2946135c997bb5c0996047790163df83f)
---
.../performance-statistics.adoc | 142 ++++++++++++++++++---
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.../monitoring-metrics/performance-statistics.adoc | 94 ++++++++++++--
21 files changed, 206 insertions(+), 30 deletions(-)
diff --git a/docs/_docs/extensions-and-integrations/performance-statistics.adoc
b/docs/_docs/extensions-and-integrations/performance-statistics.adoc
index 65485196065..f5217526178 100644
--- a/docs/_docs/extensions-and-integrations/performance-statistics.adoc
+++ b/docs/_docs/extensions-and-integrations/performance-statistics.adoc
@@ -23,7 +23,7 @@ link:#print-statistics[print statistics] from the collected
files.
== Building the Report
-Ignite provides a tool to generate the report from the performance statistics
files.
+The extension provides a tool to generate an offline HTML report from
performance statistics files.
Follow these steps to build the performance report:
@@ -31,8 +31,12 @@ Follow these steps to build the performance report:
/path_to_files/
├── node-162c7147-fef8-4ea2-bd25-8653c41fc7fa.prf
+ ├── node-162c7147-fef8-4ea2-bd25-8653c41fc7fa-system-views.prf
├── node-7b8a7c5c-f3b7-46c3-90da-e66103c00001.prf
- └── node-faedc6c9-3542-4610-ae10-4ff7e0600000.prf
+ └── node-7b8a7c5c-f3b7-46c3-90da-e66103c00001-system-views.prf
+
++
+`node-\*-system-views*.prf` files are stored next to regular performance
statistics files. If the system view files are too large, you can omit them.
The report will still be generated, but without `System views` data.
2. Run the script from the release package of the tool:
@@ -45,6 +49,10 @@ The performance report is created in the new directory under
the performance sta
`path_to_files/report_yyyy-MM-dd_HH-mm-ss/`.
Open `report_yyyy-MM-dd_HH-mm-ss/index.html` in the browser to see the report.
+The report includes `Cluster info`, `Cache operations`, `Transactions`, `SQL
queries`, `Scan queries`,
+`Index queries`, `Tasks and jobs`, and `System views`. When
`node-\*-system-views*.prf` files are available in the
+input directory, the `System views` tab is populated with their data.
+
For more details run the help command:
[source,shell]
@@ -52,27 +60,97 @@ For more details run the help command:
performance-statistics-tool/build-report.sh --help
----
-=== Performance Statistics Report Example
+=== HTML Report Tabs
:perf_stat_url: images/integrations/performance-statistics
+:perf_stat_image_url: /docs/images/integrations/performance-statistics
+
+==== Cluster info
+
+Cluster topology and caches found in the input files: `Cluster nodes` and
`Started caches` tables.
+
+image::{perf_stat_url}/perf_stat_cluster_info.png[Cluster info report,
link={perf_stat_image_url}/perf_stat_cluster_info.png]
+
+==== Cache operations
+
+Cache and cache store activity for the selected cache and node. Cache and node
selectors filter all charts on the page.
+
+A bar chart summarizes the distribution of cache operation counts by type:
+
+image::{perf_stat_url}/perf_stat_cache_operations.png[Distribution of cache
operations, link={perf_stat_image_url}/perf_stat_cache_operations.png]
+
+For each operation type, a line chart shows the operation count over time:
+
+image::{perf_stat_url}/perf_stat_cache_operations_1.png[Cache operation count
over time, link={perf_stat_image_url}/perf_stat_cache_operations_1.png]
+
+The `Cache store operations` section provides the same breakdowns for cache
store calls. A distribution chart
+summarizes cache store operation counts by type:
+
+image::{perf_stat_url}/perf_stat_cache_operations_2.png[Distribution of cache
store operations, link={perf_stat_image_url}/perf_stat_cache_operations_2.png]
+
+Line charts show cache store operation counts over time:
+
+image::{perf_stat_url}/perf_stat_cache_operations_3.png[Cache store operation
count over time, link={perf_stat_image_url}/perf_stat_cache_operations_3.png]
+
+==== Transactions
+
+Transaction activity for the selected cache and node. A histogram shows the
distribution of transaction durations:
+
+image::{perf_stat_url}/perf_stat_transactions.png[Transactions histogram,
link={perf_stat_image_url}/perf_stat_transactions.png]
+
+Below it, line charts plot `commit` and `rollback` counts over time:
+
+image::{perf_stat_url}/perf_stat_transactions_1.png[Transactions commit chart,
link={perf_stat_image_url}/perf_stat_transactions_1.png]
+
+==== SQL queries
+
+Aggregated SQL query statistics. The `Overall statistics` table shows total
executions, duration, and reads for each
+query. Each row expands into a `Properties` subtable with map and reduce phase
plans, and a `Rows` subtable with
+rows fetched on mapper and reducer nodes:
+
+image::{perf_stat_url}/perf_stat_sql_queries.png[SQL queries overall
statistics, link={perf_stat_image_url}/perf_stat_sql_queries.png]
+
+The `Top of slowest queries` table lists slow query executions with the same
expandable details:
-[tabs]
---
-tab:Cache operations[]
-image:{perf_stat_url}/perf_stat_2.jpg[Cache operations report]
-tab:Transactions[]
-image:{perf_stat_url}/perf_stat_3.jpg[Transactions report]
-tab:Queries[]
-image:{perf_stat_url}/perf_stat_4.jpg[Queries report]
-tab:Compute[]
-image:{perf_stat_url}/perf_stat_5.jpg[Compute report]
-tab:Cluster info[]
-image:{perf_stat_url}/perf_stat_1.jpg[Cluster info report]
---
+image::{perf_stat_url}/perf_stat_sql_queries_1.png[Top of slowest SQL queries,
link={perf_stat_image_url}/perf_stat_sql_queries_1.png]
+
+==== Scan queries
+
+Aggregated scan query statistics by cache and the slowest scan queries:
`Overall statistics` and `Top of slowest
+queries` tables.
+
+image::{perf_stat_url}/perf_stat_scan_queries.png[Scan queries report,
link={perf_stat_image_url}/perf_stat_scan_queries.png]
+
+==== Index queries
+
+Aggregated index query statistics and the slowest index queries: `Overall
statistics` and `Top of slowest queries`
+tables.
+
+image::{perf_stat_url}/perf_stat_index_queries.png[Index queries report,
link={perf_stat_image_url}/perf_stat_index_queries.png]
+
+==== Tasks and jobs
+
+Aggregated task execution statistics. The `Overall statistics` table shows
executions, total duration, and job
+counts per task:
+
+image::{perf_stat_url}/perf_stat_tasks_and_jobs.png[Tasks and jobs overall
statistics, link={perf_stat_image_url}/perf_stat_tasks_and_jobs.png]
+
+The `Top of slowest tasks` table lists slow task executions. Each row expands
into a `Jobs` subtable with per-node
+job durations:
+
+image::{perf_stat_url}/perf_stat_tasks_and_jobs_1.png[Top of slowest tasks
with jobs subtable, link={perf_stat_image_url}/perf_stat_tasks_and_jobs_1.png]
+
+==== System views
+
+Rows from collected system views. The tab provides a node selector, a system
view selector, and a searchable
+paginated table for the selected view.
+
+image::{perf_stat_url}/perf_stat_system_views.png[System views report,
link={perf_stat_image_url}/perf_stat_system_views.png]
== Print Statistics
-Ignite provides a tool to print statistics to a console or to a file in JSON
format.
+The extension provides a tool to print raw performance statistics records to
the console or to a file in JSON format.
+Use this tool when you need access to individual records.
Run the script from the release package of the tool to print statistics:
@@ -81,16 +159,40 @@ Run the script from the release package of the tool to
print statistics:
performance-statistics-tool/print-statistics.sh path_to_files
----
-Note that `path_to_files` is a path to the performance statistics file or
files directory.
+Note that `path_to_files` can point either to a single performance statistics
file or to a directory with multiple
+files.
+
+The tool supports the following options:
-The script provides the ability to filter operations by operation's type,
time, or cache. For more details run the
-help command:
+[cols="1,3",opts="header"]
+|===
+|Option |Description
+
+|`--out out_file` |Appends JSON output to the specified file.
+|`--ops op_types` |Prints only the specified comma-separated operation types.
+|`--from start_time_from` |Prints only records whose start time is greater
than or equal to the specified value (Unix epoch milliseconds).
+|`--to start_time_to` |Prints only records whose start time is less than or
equal to the specified value (Unix epoch milliseconds).
+|`--caches cache_names` |Prints only records related to the specified
comma-separated cache names.
+|===
+
+For more details run the help command:
[source,shell]
----
performance-statistics-tool/print-statistics.sh --help
----
+Examples:
+
+[source,shell]
+----
+performance-statistics-tool/print-statistics.sh path_to_files --ops
QUERY,QUERY_ROWS,QUERY_PROPERTY
+performance-statistics-tool/print-statistics.sh path_to_files --ops
SYSTEM_VIEW_ROW
+performance-statistics-tool/print-statistics.sh path_to_files --ops
CHECKPOINT,PAGES_WRITE_THROTTLE
+performance-statistics-tool/print-statistics.sh path_to_files --from
1713700000000 --to 1713703600000
+performance-statistics-tool/print-statistics.sh path_to_files --caches
cache1,cache2 --out perfstat.json
+----
+
See the output example below:
{"op":"CACHE_GET","nodeId":"955130d1-5218-4e46-87f6-62755e92e9b4","cacheId":-1809642915,"startTime":1616837094237,"duration":64992213}
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diff --git a/docs/_docs/monitoring-metrics/performance-statistics.adoc
b/docs/_docs/monitoring-metrics/performance-statistics.adoc
index 305dc5b870a..719a2320030 100644
--- a/docs/_docs/monitoring-metrics/performance-statistics.adoc
+++ b/docs/_docs/monitoring-metrics/performance-statistics.adoc
@@ -21,25 +21,80 @@ Ignite provides a built-in tool for cluster profiling.
You can link:#collecting-statistics[collect] performance statistics from the
cluster and then
link:#building-the-report[build] the performance report.
+== What Is Collected
+
+Performance statistics includes the following records:
+
+[cols="1,3",opts="header"]
+|===
+|Category | Records
+|Cache operations | Cache API and cache store operations: `get`, `put`,
`remove`, `invoke`, `lock`, bulk operations,
+conflict operations, and cache store load, write, and delete operations
+|Cache metadata | Cache start records with cache IDs and cache names
+|Transactions | Transaction commit and rollback records with affected cache
IDs, start time, and duration
+|Queries | SQL, SCAN, and INDEX query records with query text or cache/index
details, query ID, start time, duration,
+and success flag
+|Query details | Query logical and physical reads, processed rows, and custom
query properties
+|Tasks and jobs | Compute task and job records with task names, session IDs,
execution time, queue time,
+affinity partition, and timeout flag
+|Persistence | Checkpoint timing records and page write throttling records
+|System views | System view schemas and rows captured when statistics
collection starts (some views are skipped, see
+the list below)
+|===
+
+The following system views are skipped because they are large or duplicate
data that is already collected as
+performance records:
+
+* `baseline.node.attributes`
+* `node.attributes`
+* `metrics`
+* `caches`
+* `sql.queries`
+* `nodes`
+* `cacheGroupPageLists`
+* `dataRegionPageLists`
+* `partitionStates`
+* `statisticsPartitionData`
+* `metastorage`
+* `distributed.metastorage`
+
== Collecting Statistics
-link:#jmx[JMX interface] and link:#control-script[Control Script] are used to
start and stop statistics collecting.
+link:#jmx[JMX interface] and link:#control-script[Control Script] are used to
manage statistics collecting.
+
+Each node collects performance statistics in binary files. These files are
placed under
+the `Ignite_work_directory/perf_stat/` directory. Regular performance events
are written to
+`node-{nodeId}.prf`. If a file with the same name already exists, Ignite adds
an index to the file name:
+`node-{nodeId}-{index}.prf`.
+
+When statistics collection starts, each node also writes a snapshot of system
views
+(link:monitoring-metrics/system-views[System Views]) to
`node-{nodeId}-system-views.prf`.
+If a file with the same name already exists, Ignite adds an index:
+`node-{nodeId}-system-views-{index}.prf`. The `rotate` operation rotates only
regular performance event files.
+
+[WARNING]
+====
+[discrete]
+=== Sensitive Information
-Each node collects performance statistics in a binary file. This file is
placed under
-the `Ignite_work_directory/perf_stat/` directory. The name mask is
`node-{nodeId}-{index}.prf`.
+Performance statistics files can contain sensitive information, including
query text, cache names, task names,
+node attributes, and values exposed by system views. Store and share these
files according to your security policies.
+====
Performance statistics files are used to build the report offline.
-Nodes use off-heap cyclic buffer to temporarily store serialized statistics.
The writer thread flushes buffer to the
-file when the flush size is reached. Some statistics are skipped if the buffer
overflows due to a slow disk. See
-the link:#system-properties[properties] section for customization.
+For regular performance events, nodes use off-heap cyclic buffer to
temporarily store serialized statistics. The writer
+thread flushes buffer to the file when the flush size is reached. Some
statistics are skipped if the buffer overflows
+due to a slow disk. See the link:#system-properties[properties] section for
customization.
-Each statistics collection process creates a new file on nodes. Each next file
has the same name with the
-corresponding index. See the examples below:
+Each statistics collection process creates new files on nodes. Each next file
has the same name with the corresponding
+index. See the examples below:
* `node-faedc6c9-3542-4610-ae10-4ff7e0600000.prf`
* `node-faedc6c9-3542-4610-ae10-4ff7e0600000-1.prf`
* `node-faedc6c9-3542-4610-ae10-4ff7e0600000-2.prf`
+* `node-faedc6c9-3542-4610-ae10-4ff7e0600000-system-views.prf`
+* `node-faedc6c9-3542-4610-ae10-4ff7e0600000-system-views-1.prf`
== Building the Report
@@ -54,8 +109,11 @@ Follow these steps to build the performance report:
/path_to_files/
├── node-162c7147-fef8-4ea2-bd25-8653c41fc7fa.prf
+ ├── node-162c7147-fef8-4ea2-bd25-8653c41fc7fa-system-views.prf
├── node-7b8a7c5c-f3b7-46c3-90da-e66103c00001.prf
- └── node-faedc6c9-3542-4610-ae10-4ff7e0600000.prf
+ ├── node-7b8a7c5c-f3b7-46c3-90da-e66103c00001-system-views.prf
+ ├── node-faedc6c9-3542-4610-ae10-4ff7e0600000.prf
+ └── node-faedc6c9-3542-4610-ae10-4ff7e0600000-system-views.prf
2. Run the script from the release package of the tool:
@@ -65,6 +123,22 @@ The performance report is created in the new directory
under the performance sta
path: `path_to_files/report_yyyy-MM-dd_HH-mm-ss/`. Open
`report_yyyy-MM-dd_HH-mm-ss/index.html` in the browser to see
the report.
+You can also print raw performance statistics records to the console or to a
file by using `print-statistics.sh` from
+the `performance-statistics-ext` release package. For example, to print
checkpoint timing and page write throttling
+records:
+
+[source,shell]
+----
+performance-statistics-tool/print-statistics.sh path_to_files --ops
CHECKPOINT,PAGES_WRITE_THROTTLE
+----
+
+To write the output to a file, use the `--out` parameter:
+
+[source,shell]
+----
+performance-statistics-tool/print-statistics.sh path_to_files --ops
CHECKPOINT,PAGES_WRITE_THROTTLE --out checkpoints.json
+----
+
== Management
The following section provides information on JMX, Control Script and system
properties.
@@ -122,6 +196,6 @@ Parameters:
statistics collection is stopped when the file size is exceeded.
|IGNITE_PERF_STAT_BUFFER_SIZE | Integer | 32 Mb | Performance statistics off
heap buffer size in bytes.
|IGNITE_PERF_STAT_FLUSH_SIZE | Integer | 8 Mb | Minimal performance statistics
batch size to be flushed in bytes.
-|IGNITE_PERF_STAT_CACHED_STRINGS_THRESHOLD | Integer | 1024 | Maximum
performance statistics cached strings threshold.
+|IGNITE_PERF_STAT_CACHED_STRINGS_THRESHOLD | Integer | 10240 | Maximum
performance statistics cached strings threshold.
String caching is stopped when the threshold is exceeded.
|===
