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PostgreSQL fields

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PostgreSQL fields

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Metrics collected from PostgreSQL servers.

postgresql

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PostgreSQL metrics.

activity

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One document per server process, showing information related to the current activity of that process, such as state and current query. Collected by querying pg_stat_activity.

postgresql.activity.database.oid

OID of the database this backend is connected to.

type: long

postgresql.activity.database.name

Name of the database this backend is connected to.

type: keyword

postgresql.activity.pid

Process ID of this backend.

type: long

postgresql.activity.user.id

OID of the user logged into this backend.

type: long

postgresql.activity.user.name

Name of the user logged into this backend.

postgresql.activity.application_name

Name of the application that is connected to this backend.

postgresql.activity.client.address

IP address of the client connected to this backend.

postgresql.activity.client.hostname

Host name of the connected client, as reported by a reverse DNS lookup of client_addr.

postgresql.activity.client.port

TCP port number that the client is using for communication with this backend, or -1 if a Unix socket is used.

type: long

postgresql.activity.backend_type

Type of the current backend. Possible types are autovacuum launcher, autovacuum worker, logical replication launcher, logical replication worker, parallel worker, background writer, client backend, checkpointer, startup, walreceiver, walsender and walwriter. Extensions may register workers with additional backend types.

postgresql.activity.backend_start

Time when this process was started, i.e., when the client connected to the server.

type: date

postgresql.activity.transaction_start

Time when this process' current transaction was started.

type: date

postgresql.activity.query_start

Time when the currently active query was started, or if state is not active, when the last query was started.

type: date

postgresql.activity.state_change

Time when the state was last changed.

type: date

postgresql.activity.waiting

True if this backend is currently waiting on a lock.

type: boolean

postgresql.activity.state

Current overall state of this backend. Possible values are:

active: The backend is executing a query.
idle: The backend is waiting for a new client command.
idle in transaction: The backend is in a transaction, but is not currently executing a query.
idle in transaction (aborted): This state is similar to idle in transaction, except one of the statements in the transaction caused an error.
fastpath function call: The backend is executing a fast-path function.
disabled: This state is reported if track_activities is disabled in this backend.

postgresql.activity.query

Text of this backend’s most recent query. If state is active this field shows the currently executing query. In all other states, it shows the last query that was executed.

postgresql.activity.wait_event

Wait event name if the backend is currently waiting.

postgresql.activity.wait_event_type

The type of event for which the backend is waiting.

bgwriter

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Statistics about the background writer process’s activity. Collected using the pg_stat_bgwriter query.

postgresql.bgwriter.checkpoints.scheduled

Number of scheduled checkpoints that have been performed.

type: long

postgresql.bgwriter.checkpoints.requested

Number of requested checkpoints that have been performed.

type: long

postgresql.bgwriter.checkpoints.times.write.ms

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

type: float

postgresql.bgwriter.checkpoints.times.sync.ms

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

type: float

postgresql.bgwriter.buffers.checkpoints

Number of buffers written during checkpoints.

type: long

postgresql.bgwriter.buffers.clean

Number of buffers written by the background writer.

type: long

postgresql.bgwriter.buffers.clean_full

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

type: long

postgresql.bgwriter.buffers.backend

Number of buffers written directly by a backend.

type: long

postgresql.bgwriter.buffers.backend_fsync

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)

type: long

postgresql.bgwriter.buffers.allocated

Number of buffers allocated.

type: long

postgresql.bgwriter.stats_reset

Time at which these statistics were last reset.

type: date

database

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One row per database, showing database-wide statistics. Collected by querying pg_stat_database

postgresql.database.oid

OID of the database this backend is connected to, or 0 for shared resources.

type: long

postgresql.database.name

Name of the database this backend is connected to, empty for shared resources.

type: keyword

postgresql.database.number_of_backends

Number of backends currently connected to this database.

type: long

postgresql.database.transactions.commit

Number of transactions in this database that have been committed.

type: long

postgresql.database.transactions.rollback

Number of transactions in this database that have been rolled back.

type: long

postgresql.database.blocks.read

Number of disk blocks read in this database.

type: long

postgresql.database.blocks.hit

Number of times disk blocks were found already in the buffer cache, so that a read was not necessary (this only includes hits in the PostgreSQL buffer cache, not the operating system’s file system cache).

type: long

postgresql.database.blocks.time.read.ms

Time spent reading data file blocks by backends in this database, in milliseconds.

type: long

postgresql.database.blocks.time.write.ms

Time spent writing data file blocks by backends in this database, in milliseconds.

type: long

postgresql.database.rows.returned

Number of rows returned by queries in this database.

type: long

postgresql.database.rows.fetched

Number of rows fetched by queries in this database.

type: long

postgresql.database.rows.inserted

Number of rows inserted by queries in this database.

type: long

postgresql.database.rows.updated

Number of rows updated by queries in this database.

type: long

postgresql.database.rows.deleted

Number of rows deleted by queries in this database.

type: long

postgresql.database.conflicts

Number of queries canceled due to conflicts with recovery in this database.

type: long

postgresql.database.temporary.files

Number of temporary files created by queries in this database. All temporary files are counted, regardless of why the temporary file was created (e.g., sorting or hashing), and regardless of the log_temp_files setting.

type: long

postgresql.database.temporary.bytes

Total amount of data written to temporary files by queries in this database. All temporary files are counted, regardless of why the temporary file was created, and regardless of the log_temp_files setting.

type: long

postgresql.database.deadlocks

Number of deadlocks detected in this database.

type: long

postgresql.database.stats_reset

Time at which these statistics were last reset.

type: date

statement

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One document per query per user per database, showing information related invocation of that query, such as cpu usage and total time. Collected by querying pg_stat_statements.

postgresql.statement.user.id

OID of the user logged into the backend that ran the query.

type: long

postgresql.statement.database.oid

OID of the database the query was run on.

type: long

postgresql.statement.query.id

ID of the statement.

type: long

postgresql.statement.query.text

Query text

postgresql.statement.query.calls

Number of times the query has been run.

type: long

postgresql.statement.query.rows

Total number of rows returned by query.

type: long

postgresql.statement.query.time.total.ms

Total number of milliseconds spent running query.

type: float

postgresql.statement.query.time.min.ms

Minimum number of milliseconds spent running query.

type: float

postgresql.statement.query.time.max.ms

Maximum number of milliseconds spent running query.

type: float

postgresql.statement.query.time.mean.ms

Mean number of milliseconds spent running query.

type: long

postgresql.statement.query.time.stddev.ms

Population standard deviation of time spent running query, in milliseconds.

type: long

postgresql.statement.query.memory.shared.hit

Total number of shared block cache hits by the query.

type: long

postgresql.statement.query.memory.shared.read

Total number of shared block cache read by the query.

type: long

postgresql.statement.query.memory.shared.dirtied

Total number of shared block cache dirtied by the query.

type: long

postgresql.statement.query.memory.shared.written

Total number of shared block cache written by the query.

type: long

postgresql.statement.query.memory.local.hit

Total number of local block cache hits by the query.

type: long

postgresql.statement.query.memory.local.read

Total number of local block cache read by the query.

type: long

postgresql.statement.query.memory.local.dirtied

Total number of local block cache dirtied by the query.

type: long

postgresql.statement.query.memory.local.written

Total number of local block cache written by the query.

type: long

postgresql.statement.query.memory.temp.read

Total number of temp block cache read by the query.

type: long

postgresql.statement.query.memory.temp.written

Total number of temp block cache written by the query.

type: long

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