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Merge pull request #218 from postgrespro/MMNS-43_postgresql_18_std
feat: more metrics from PostgreSQL 18.
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‎.github/workflows/mamonsu-tests-dev.yml‎

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- docker_os: 'ubuntu:24.04'
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pg_version: '16'
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zabbix_version: '6.4.13'
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- docker_os: 'ubuntu:24.04'
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pg_version: '18'
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zabbix_version: '6.4.13'
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exclude:
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- docker_os: 'centos:8'
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pg_version: '12'

‎.github/workflows/mamonsu-tests-master.yml‎

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- docker_os: 'ubuntu:24.04'
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pg_version: '16'
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zabbix_version: '6.4.13'
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- docker_os: 'ubuntu:24.04'
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pg_version: '18'
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zabbix_version: '6.4.13'
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exclude:
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# excludes PG 15, 16 on CentOS
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- docker_os: 'centos:7'

‎documentation/metrics.md‎

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@@ -2374,6 +2374,69 @@ Default config:
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*Buffers Written During Checkpoints* maps `buffers_written`.
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- **Done Checkpoints**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Checkpoints: Done (in hour)</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.checkpoint[count_done]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Speed Per Second</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*Done Checkpoints* maps `num_done`.
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- **SLRU Written**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Checkpoints: SLRU Written (in hour)</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.checkpoint[slru_written]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Speed Per Second</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*SLRU Written* maps `slru_written`.
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### Graphs
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*Checksum Failures* maps `checksum_failures`.
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- **Parallel Workers To Launch**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Instance: Parallel Workers To Launch</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.parallel[instance_to_launch]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Simple Change</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*Parallel Workers To Launch* maps `parallel_workers_to_launch`.
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- **Parallel Workers Launched**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Instance: Parallel Workers Launched</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.parallel[instance_launched]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Simple Change</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*Parallel Workers Launched* maps `parallel_workers_launched`.
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### Graphs
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<table>
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<tr>
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*Amount of WAL Records* maps `wal_records`.
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- **WAL Buffers Full**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Statements: WAL Buffers Full</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.stat[wal_buffers_full]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Simple Change</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*WAL Buffers Full* maps `wal_buffers_full`.
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- **Dirty Bytes**
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*pg_stat_statements.max Exceeding Count* maps `dealloc`.
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- **Parallel Workers To Launch**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Statements: Parallel Workers To Launch</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.parallel[statements_to_launch]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Simple Change</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*Parallel Workers To Launch* maps `parallel_workers_to_launch`.
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- **Parallel Workers Launched**
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Zabbix item:
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<table>
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<tr>
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<th>Name</th>
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<td>PostgreSQL Statements: Parallel Workers Launched</td>
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</tr>
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<tr>
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<th>Key</th>
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<td>pgsql.parallel[statements_launched]</td>
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</tr>
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<tr>
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<th>Type</th>
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<td>Numeric (float)</td>
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</tr>
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<tr>
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<th>Units</th>
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<td></td>
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</tr>
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<tr>
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<th>Delta</th>
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<td>Simple Change</td>
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</tr>
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<tr>
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<th>Supported Version</th>
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<td>18+</td>
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</tr>
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</table>
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*Parallel Workers Launched* maps `parallel_workers_launched`.
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### Graphs
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<table>

‎github-actions-tests/metrics.sh‎

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GREP=$( mamonsu agent metric-get ${metric} | grep "pgsql\|sys\|mamonsu" )
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if [ -z "$GREP" ]; then
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echo "---> ERROR: Cannot found metric $metric"
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mamonsu agent metric-list
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exit 11
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fi
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done

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