Postgresql

Postgresql

PostgreSQL, also known as Postgres, is a free and open-source relational database management system emphasizing extensibility and technical standards compliance. It is designed to handle a range of workloads, from single machines to data warehouses or Web services with many concurrent users.

Available solutions




This template is for Zabbix version: 6.0
Also available for: 5.4 5.0

Source: https://git.zabbix.com/projects/ZBX/repos/zabbix/browse/templates/db/postgresql?at=release/6.0

PostgreSQL by Zabbix agent

Overview

For Zabbix version: 6.0 and higher
Templates to monitor PostgreSQL by Zabbix. This template was tested on PostgreSQL versions 9.6, 10 and 11 on Linux and Windows.

Setup

See Zabbix template operation for basic instructions.

  1. Install Zabbix agent and create a read-only zbx_monitor user with proper access to your PostgreSQL server.

    For PostgreSQL version 10 and above:

    CREATE USER zbx_monitor WITH PASSWORD '<PASSWORD>' INHERIT;
GRANT pg_monitor TO zbx_monitor;

    For PostgreSQL version 9.6 and below:

    CREATE USER zbx_monitor WITH PASSWORD '<PASSWORD>';
GRANT SELECT ON pg_stat_database TO zbx_monitor;

-- To collect WAL metrics, the user must have a `superuser` role.
ALTER USER zbx_monitor WITH SUPERUSER;

  2. Copy postgresql/ to Zabbix agent home directory /var/lib/zabbix/. The postgresql/ directory contains the files needed to obtain metrics from PostgreSQL.

  3. Copy template_db_postgresql.conf to Zabbix agent configuration directory /etc/zabbix/zabbix_agentd.d/ and restart Zabbix agent service.

  4. Edit pg_hba.conf to allow connections from Zabbix agent https://www.postgresql.org/docs/current/auth-pg-hba-conf.html.

    Add rows (for example):

    host all zbx_monitor 127.0.0.1/32 trust
host all zbx_monitor 0.0.0.0/0 md5
host all zbx_monitor ::0/0 md5

  5. Import template file to Zabbix and link it to the target host

  6. Set {$PG.HOST}, {$PG.PORT}, {$PG.USER}, {$PG.PASSWORD} and {$PG.DB} macros values.

Zabbix configuration

If PostgreSQL is installed from the PGDG repository, then add the path to pg_isready to the PATH environment variable for zabbix user.

Macros used

Name Description Default
{$PG.CACHE_HITRATIO.MIN.WARN}

-

 90
{$PG.CHECKPOINTS_REQ.MAX.WARN}

-

 5
{$PG.CONFLICTS.MAX.WARN}

-

 0
{$PG.CONN_IDLE_IN_TRANS.MAX.WARN}

-

 5
{$PG.CONN_TOTAL_PCT.MAX.WARN}

-

 90
{$PG.CONN_WAIT.MAX.WARN}

-

 0
{$PG.DB}

-

 postgres
{$PG.DEADLOCKS.MAX.WARN}

-

 0
{$PG.FROZENXID_PCT_STOP.MIN.HIGH}

-

 75
{$PG.HOST}

-

 127.0.0.1
{$PG.LLD.FILTER.DBNAME}

-

 (.*)
{$PG.LOCKS.MAX.WARN}

-

 100
{$PG.PASSWORD}

Please set user's password in this macro.

 ``
{$PG.PING_TIME.MAX.WARN}

-

 1s
{$PG.PORT}

-

 5432
{$PG.QUERY_ETIME.MAX.WARN}

-

 30
{$PG.REPL_LAG.MAX.WARN}

-

 10m
{$PG.SLOW_QUERIES.MAX.WARN}

-

 5
{$PG.TRANS_ACTIVE.MAX.WARN}

-

 30s
{$PG.TRANS_IDLE.MAX.WARN}

-

 30s
{$PG.TRANS_WAIT.MAX.WARN}

-

 30s
{$PG.USER}

-

 zbx_monitor

Template links

There are no template links in this template.

Discovery rules

Name Description Type Key and additional info
Database discovery

-

 ZABBIX_PASSIVE pgsql.discovery.db["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]

Filter:

- {#DBNAME} MATCHES_REGEX {$PG.LLD.FILTER.DBNAME}

Items collected

Group Name Description Type Key and additional info
PostgreSQL Bgwriter: Buffers allocated per second

Number of buffers allocated

 DEPENDENT pgsql.bgwriter.buffers_alloc.rate

Preprocessing:

- JSONPATH: $.buffers_alloc

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Buffers written directly by a backend per second

Number of buffers written directly by a backend

 DEPENDENT pgsql.bgwriter.buffers_backend.rate

Preprocessing:

- JSONPATH: $.buffers_backend

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Buffers backend fsync per second

Number of times a backend had to execute its own fsync call (normally the background writer handles those even when the backend does its own write)

 DEPENDENT pgsql.bgwriter.buffers_backend_fsync.rate

Preprocessing:

- JSONPATH: $.buffers_backend_fsync

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Buffers written during checkpoints per second

Number of buffers written during checkpoints

 DEPENDENT pgsql.bgwriter.buffers_checkpoint.rate

Preprocessing:

- JSONPATH: $.buffers_checkpoint

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Buffers written by the background writer per second

Number of buffers written by the background writer

 DEPENDENT pgsql.bgwriter.buffers_clean.rate

Preprocessing:

- JSONPATH: $.buffers_clean

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Requested checkpoints per second

Number of requested checkpoints that have been performed

 DEPENDENT pgsql.bgwriter.checkpoints_req.rate

Preprocessing:

- JSONPATH: $.checkpoints_req

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Scheduled checkpoints per second

Number of scheduled checkpoints that have been performed

 DEPENDENT pgsql.bgwriter.checkpoints_timed.rate

Preprocessing:

- JSONPATH: $.checkpoints_timed

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Checkpoint sync time

Total amount of time that has been spent in the portion of checkpoint processing where files are synchronized to disk

 DEPENDENT pgsql.bgwriter.checkpoint_sync_time

Preprocessing:

- JSONPATH: $.checkpoint_sync_time

- MULTIPLIER: 0.001

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Checkpoint write time

Total amount of time that has been spent in the portion of checkpoint processing where files are written to disk, in milliseconds

 DEPENDENT pgsql.bgwriter.checkpoint_write_time

Preprocessing:

- JSONPATH: $.checkpoint_write_time

- MULTIPLIER: 0.001

- CHANGE_PER_SECOND
PostgreSQL Bgwriter: Max written per second

Number of times the background writer stopped a cleaning scan because it had written too many buffers

 DEPENDENT pgsql.bgwriter.maxwritten_clean.rate

Preprocessing:

- JSONPATH: $.maxwritten_clean

- CHANGE_PER_SECOND
PostgreSQL Status: Cache hit ratio %

Cache hit ratio

 ZABBIX_PASSIVE pgsql.cache.hit["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Status: Config hash

PostgreSQL configuration hash

 ZABBIX_PASSIVE pgsql.config.hash["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]

Preprocessing:

- DISCARD_UNCHANGED_HEARTBEAT: 1h
PostgreSQL Connections sum: Active

Total number of connections executing a query

 DEPENDENT pgsql.connections.sum.active

Preprocessing:

- JSONPATH: $.active
PostgreSQL Connections sum: Idle

Total number of connections waiting for a new client command

 DEPENDENT pgsql.connections.sum.idle

Preprocessing:

- JSONPATH: $.idle
PostgreSQL Connections sum: Idle in transaction

Total number of connections in a transaction state, but not executing a query

 DEPENDENT pgsql.connections.sum.idle_in_transaction

Preprocessing:

- JSONPATH: $.idle_in_transaction
PostgreSQL Connections sum: Prepared

Total number of prepared transactions

https://www.postgresql.org/docs/current/sql-prepare-transaction.html

 DEPENDENT pgsql.connections.sum.prepared

Preprocessing:

- JSONPATH: $.prepared
PostgreSQL Connections sum: Total

Total number of connections

 DEPENDENT pgsql.connections.sum.total

Preprocessing:

- JSONPATH: $.total
PostgreSQL Connections sum: Total %

Total number of connections in percentage

 DEPENDENT pgsql.connections.sum.total_pct

Preprocessing:

- JSONPATH: $.total_pct
PostgreSQL Connections sum: Waiting

Total number of waiting connections

https://www.postgresql.org/docs/current/monitoring-stats.html#WAIT-EVENT-TABLE

 DEPENDENT pgsql.connections.sum.waiting

Preprocessing:

- JSONPATH: $.waiting
PostgreSQL Status: Ping time

-

 ZABBIX_PASSIVE pgsql.ping.time["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]

Preprocessing:

- REGEX: Time:\s+(\d+\.\d+)\s+ms \1

- MULTIPLIER: 0.001
PostgreSQL Status: Ping

-

 ZABBIX_PASSIVE pgsql.ping["{$PG.HOST}","{$PG.PORT}"]

Preprocessing:

- JAVASCRIPT: return value.search(/accepting connections/)>0 ? 1 : 0

- DISCARD_UNCHANGED_HEARTBEAT: 1h
PostgreSQL Replication: standby count

Number of standby servers

 ZABBIX_PASSIVE pgsql.replication.count["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Replication: lag in seconds

Replication lag with Master in seconds

 ZABBIX_PASSIVE pgsql.replication.lag.sec["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Replication: recovery role

Replication role: 1 — recovery is still in progress (standby mode), 0 — master mode.

 ZABBIX_PASSIVE pgsql.replication.recovery_role["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Replication: status

Replication status: 0 — streaming is down, 1 — streaming is up, 2 — master mode

 ZABBIX_PASSIVE pgsql.replication.status["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Transactions: Max active transaction time

Current max active transaction time

 DEPENDENT pgsql.transactions.active

Preprocessing:

- JSONPATH: $.active
PostgreSQL Transactions: Max idle transaction time

Current max idle transaction time

 DEPENDENT pgsql.transactions.idle

Preprocessing:

- JSONPATH: $.idle
PostgreSQL Transactions: Max prepared transaction time

Current max prepared transaction time

 DEPENDENT pgsql.transactions.prepared

Preprocessing:

- JSONPATH: $.prepared
PostgreSQL Transactions: Max waiting transaction time

Current max waiting transaction time

 DEPENDENT pgsql.transactions.waiting

Preprocessing:

- JSONPATH: $.waiting
PostgreSQL Status: Uptime

-

 ZABBIX_PASSIVE pgsql.uptime["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
PostgreSQL Status: Version

PostgreSQL version

 ZABBIX_PASSIVE pgsql.version["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]

Preprocessing:

- DISCARD_UNCHANGED_HEARTBEAT: 1d
PostgreSQL WAL: Segments count

Number of WAL segments

 DEPENDENT pgsql.wal.count

Preprocessing:

- JSONPATH: $.count
PostgreSQL WAL: Bytes written

WAL write in bytes

 DEPENDENT pgsql.wal.write

Preprocessing:

- JSONPATH: $.write

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Database size

Database size

 ZABBIX_PASSIVE pgsql.db.size["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}","{#DBNAME}"]
PostgreSQL DB {#DBNAME}: Blocks hit per second

Total number of times disk blocks were found already in the buffer cache, so that a read was not necessary

 DEPENDENT pgsql.dbstat.blks_hit.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].blks_hit

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Disk blocks read per second

Total number of disk blocks read in this database

 DEPENDENT pgsql.dbstat.blks_read.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].blks_read

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Detected conflicts per second

Total number of queries canceled due to conflicts with recovery in this database

 DEPENDENT pgsql.dbstat.conflicts.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].conflicts

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Detected deadlocks per second

Total number of detected deadlocks in this database

 DEPENDENT pgsql.dbstat.deadlocks.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].deadlocks

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Temp_bytes written per second

Total amount of data written to temporary files by queries in this database

 DEPENDENT pgsql.dbstat.temp_bytes.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].temp_bytes

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Temp_files created per second

Total number of temporary files created by queries in this database

 DEPENDENT pgsql.dbstat.temp_files.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].temp_files

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Tuples deleted per second

Total number of rows deleted by queries in this database

 DEPENDENT pgsql.dbstat.tup_deleted.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tup_deleted

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Tuples fetched per second

Total number of rows fetched by queries in this database

 DEPENDENT pgsql.dbstat.tup_fetched.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tup_fetched

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Tuples inserted per second

Total number of rows inserted by queries in this database

 DEPENDENT pgsql.dbstat.tup_inserted.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tup_inserted

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Tuples returned per second

Total number of rows updated by queries in this database

 DEPENDENT pgsql.dbstat.tup_returned.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tup_returned

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Tuples updated per second

Total number of rows updated by queries in this database

 DEPENDENT pgsql.dbstat.tup_updated.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tup_updated

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Commits per second

Number of transactions in this database that have been committed

 DEPENDENT pgsql.dbstat.xact_commit.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].xact_commit

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Rollbacks per second

Total number of transactions in this database that have been rolled back

 DEPENDENT pgsql.dbstat.xact_rollback.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].xact_rollback

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Frozen XID before avtovacuum %

reventing Transaction ID Wraparound Failures

https://www.postgresql.org/docs/current/routine-vacuuming.html#VACUUM-FOR-WRAPAROUND

 DEPENDENT pgsql.frozenxid.prc_before_av["{#DBNAME}"]

Preprocessing:

- JSONPATH: $.prc_before_av
PostgreSQL DB {#DBNAME}: Frozen XID before stop %

Preventing Transaction ID Wraparound Failures

https://www.postgresql.org/docs/current/routine-vacuuming.html#VACUUM-FOR-WRAPAROUND

 DEPENDENT pgsql.frozenxid.prc_before_stop["{#DBNAME}"]

Preprocessing:

- JSONPATH: $.prc_before_stop
PostgreSQL DB {#DBNAME}: Locks total

Total number of locks in the database

 DEPENDENT pgsql.locks.total["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].total
PostgreSQL DB {#DBNAME}: Queries slow maintenance count

Slow maintenance query count

 DEPENDENT pgsql.queries.mro.slow_count["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].mro_slow_count
PostgreSQL DB {#DBNAME}: Queries max maintenance time

Max maintenance query time

 DEPENDENT pgsql.queries.mro.time_max["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].mro_time_max
PostgreSQL DB {#DBNAME}: Queries sum maintenance time

Sum maintenance query time

 DEPENDENT pgsql.queries.mro.time_sum["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].mro_time_sum
PostgreSQL DB {#DBNAME}: Queries slow query count

Slow query count

 DEPENDENT pgsql.queries.query.slow_count["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].query_slow_count
PostgreSQL DB {#DBNAME}: Queries max query time

Max query time

 DEPENDENT pgsql.queries.query.time_max["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].query_time_max
PostgreSQL DB {#DBNAME}: Queries sum query time

Sum query time

 DEPENDENT pgsql.queries.query.time_sum["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].query_time_sum
PostgreSQL DB {#DBNAME}: Queries slow transaction count

Slow transaction query count

 DEPENDENT pgsql.queries.tx.slow_count["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tx_slow_count
PostgreSQL DB {#DBNAME}: Queries max transaction time

Max transaction query time

 DEPENDENT pgsql.queries.tx.time_max["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tx_time_max
PostgreSQL DB {#DBNAME}: Queries sum transaction time

Sum transaction query time

 DEPENDENT pgsql.queries.tx.time_sum["{#DBNAME}"]

Preprocessing:

- JSONPATH: $['{#DBNAME}'].tx_time_sum
PostgreSQL DB {#DBNAME}: Index scans per second

Number of index scans in the database

 DEPENDENT pgsql.scans.idx.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $.idx

- CHANGE_PER_SECOND
PostgreSQL DB {#DBNAME}: Sequential scans per second

Number of sequential scans in the database

 DEPENDENT pgsql.scans.seq.rate["{#DBNAME}"]

Preprocessing:

- JSONPATH: $.seq

- CHANGE_PER_SECOND
Zabbix raw items PostgreSQL: Get bgwriter

Statistics about the background writer process's activity

 ZABBIX_PASSIVE pgsql.bgwriter["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items PostgreSQL: Get connections sum

Collect all metrics from pg_stat_activity

https://www.postgresql.org/docs/current/monitoring-stats.html#PG-STAT-ACTIVITY-VIEW

 ZABBIX_PASSIVE pgsql.connections.sum["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items PostgreSQL: Get dbstat

Collect all metrics from pg_stat_database per database

https://www.postgresql.org/docs/current/monitoring-stats.html#PG-STAT-DATABASE-VIEW

 ZABBIX_PASSIVE pgsql.dbstat["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items PostgreSQL: Get locks

Collect all metrics from pg_locks per database

https://www.postgresql.org/docs/current/explicit-locking.html#LOCKING-TABLES

 ZABBIX_PASSIVE pgsql.locks["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items PostgreSQL: Get queries

Collect all metrics by query execution time

 ZABBIX_PASSIVE pgsql.queries["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}","{$PG.QUERY_ETIME.MAX.WARN}"]
Zabbix raw items PostgreSQL: Get transactions

Collect metrics by transaction execution time

 ZABBIX_PASSIVE pgsql.transactions["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items PostgreSQL: Get WAL

Master item to collect WAL metrics

 ZABBIX_PASSIVE pgsql.wal.stat["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]
Zabbix raw items DB {#DBNAME}: Get frozen XID

-

 ZABBIX_PASSIVE pgsql.frozenxid["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{#DBNAME}"]
Zabbix raw items DB {#DBNAME}: Get scans

Number of scans done for table/index in the database

 ZABBIX_PASSIVE pgsql.scans["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{#DBNAME}"]

Triggers

Name Description Expression Severity Dependencies and additional info
PostgreSQL: Required checkpoints occurs too frequently

Checkpoints are points in the sequence of transactions at which it is guaranteed that the heap and index data files have been updated with all information written before that checkpoint. At checkpoint time, all dirty data pages are flushed to disk and a special checkpoint record is written to the log file.

https://www.postgresql.org/docs/current/wal-configuration.html

 last(/PostgreSQL by Zabbix agent/pgsql.bgwriter.checkpoints_req.rate) > {$PG.CHECKPOINTS_REQ.MAX.WARN} AVERAGE
PostgreSQL: Cache hit ratio too low

-

 max(/PostgreSQL by Zabbix agent/pgsql.cache.hit["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],5m) < {$PG.CACHE_HITRATIO.MIN.WARN} WARNING
PostgreSQL: Configuration has changed

-

 last(/PostgreSQL by Zabbix agent/pgsql.config.hash["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],#1)<>last(/PostgreSQL by Zabbix agent/pgsql.config.hash["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],#2) and length(last(/PostgreSQL by Zabbix agent/pgsql.config.hash["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]))>0 INFO
PostgreSQL: Total number of connections is too high

-

 min(/PostgreSQL by Zabbix agent/pgsql.connections.sum.total_pct,5m) > {$PG.CONN_TOTAL_PCT.MAX.WARN} AVERAGE
PostgreSQL: Response too long

-

 min(/PostgreSQL by Zabbix agent/pgsql.ping.time["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],5m) > {$PG.PING_TIME.MAX.WARN} AVERAGE

Depends on:

- PostgreSQL: Service is down
PostgreSQL: Service is down

-

 last(/PostgreSQL by Zabbix agent/pgsql.ping["{$PG.HOST}","{$PG.PORT}"]) = 0 HIGH
PostgreSQL: Streaming lag with {#MASTER} is too high

-

 min(/PostgreSQL by Zabbix agent/pgsql.replication.lag.sec["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],5m) > {$PG.REPL_LAG.MAX.WARN} AVERAGE
PostgreSQL: Replication is down

-

 max(/PostgreSQL by Zabbix agent/pgsql.replication.status["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],5m)=0 AVERAGE
PostgreSQL: Service has been restarted

PostgreSQL uptime is less than 10 minutes

 last(/PostgreSQL by Zabbix agent/pgsql.uptime["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]) < 10m INFO
PostgreSQL: Version has changed

-

 last(/PostgreSQL by Zabbix agent/pgsql.version["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],#1)<>last(/PostgreSQL by Zabbix agent/pgsql.version["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],#2) and length(last(/PostgreSQL by Zabbix agent/pgsql.version["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"]))>0 INFO
DB {#DBNAME}: Too many recovery conflicts

The primary and standby servers are in many ways loosely connected. Actions on the primary will have an effect on the standby. As a result, there is potential for negative interactions or conflicts between them.

https://www.postgresql.org/docs/current/hot-standby.html#HOT-STANDBY-CONFLICT

 min(/PostgreSQL by Zabbix agent/pgsql.dbstat.conflicts.rate["{#DBNAME}"],5m) > {$PG.CONFLICTS.MAX.WARN:"{#DBNAME}"} AVERAGE
DB {#DBNAME}: Deadlock occurred

-

 min(/PostgreSQL by Zabbix agent/pgsql.dbstat.deadlocks.rate["{#DBNAME}"],5m) > {$PG.DEADLOCKS.MAX.WARN:"{#DBNAME}"} HIGH
DB {#DBNAME}: VACUUM FREEZE is required to prevent wraparound

Preventing Transaction ID Wraparound Failures

https://www.postgresql.org/docs/current/routine-vacuuming.html#VACUUM-FOR-WRAPAROUND

 last(/PostgreSQL by Zabbix agent/pgsql.frozenxid.prc_before_stop["{#DBNAME}"])<{$PG.FROZENXID_PCT_STOP.MIN.HIGH:"{#DBNAME}"} AVERAGE
DB {#DBNAME}: Number of locks is too high

-

 min(/PostgreSQL by Zabbix agent/pgsql.locks.total["{#DBNAME}"],5m)>{$PG.LOCKS.MAX.WARN:"{#DBNAME}"} WARNING
DB {#DBNAME}: Too many slow queries

-

 min(/PostgreSQL by Zabbix agent/pgsql.queries.query.slow_count["{#DBNAME}"],5m)>{$PG.SLOW_QUERIES.MAX.WARN:"{#DBNAME}"} WARNING
PostgreSQL: Failed to get items

Zabbix has not received data for items for the last 30 minutes

 nodata(/PostgreSQL by Zabbix agent/pgsql.bgwriter["{$PG.HOST}","{$PG.PORT}","{$PG.USER}","{$PG.PASSWORD}","{$PG.DB}"],30m) = 1 WARNING

Depends on:

- PostgreSQL: Service is down

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