Item keys specific to agent 2

Item keys specific to agent 2

Zabbix agent 2 supports all item keys supported for Zabbix agent on Unix and Windows. This page provides details on the additional item keys, which you can use with Zabbix agent 2 only, grouped by the plugin they belong to.

Parameters without angle brackets are mandatory. Parameters marked with angle brackets < > are optional.

Ceph

Key
	Description	Return value	Parameters	Comments
ceph.df.details [connString, <user>, <apikey>]
	Cluster’s data usage and distribution among pools.	JSON object	connString - URI or session name. user, password - Ceph login credentials.
ceph.osd.stats [connString, <user>, <apikey>]
	Aggregated and per OSD statistics.	JSON object	connString - URI or session name. user, password - Ceph login credentials.
ceph.osd.discovery [connString, <user>, <apikey>]
	List of discovered OSDs. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Ceph login credentials.
ceph.osd.dump [connString, <user>, <apikey>]
	Usage thresholds and statuses of OSDs.	JSON object	connString - URI or session name. user, password - Ceph login credentials.
ceph.ping [connString, <user>, <apikey>]
	Tests whether a connection to Ceph can be established.	0 - connection is broken (if there is any error presented including AUTH and configuration issues) 1 - connection is successful.	connString - URI or session name. user, password - Ceph login credentials.
ceph.pool.discovery [connString, <user>, <apikey>]
	List of discovered pools. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Ceph login credentials.
ceph.status [connString, <user>, <apikey>]
	Overall cluster’s status.	JSON object	connString - URI or session name. user, password - Ceph login credentials.

Docker

Key
	Description	Return value	Parameters	Comments
docker.container_info [<ID>]
	Low-level information about a container.	An output of the ContainerInspect API call serialized as JSON	ID - ID or name of the container	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.container_stats [<ID>]
	Container resource usage statistics.	An output of the ContainerStats API call and CPU usage percentage serialized as JSON	ID - ID or name of the container	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.containers
	A list of containers.	An output of the ContainerList API call serialized as JSON	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.containers.discovery[<options>]
	A list of containers. Used for low-level discovery.	JSON object.	options - specifies whether all or only running containers should be discovered. Supported values: true - return all containers; false - return only running containers (default).	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.data_usage
	Information about current data usage.	An output of the SystemDataUsage API call serialized as JSON	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.images
	A list of images.	An output of the ImageList API call serialized as JSON	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.images.discovery
	A list of images. Used for low-level discovery.	JSON object.	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.info
	System information.	An output of the SystemInfo API call serialized as JSON	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.
docker.ping
	Test if a Docker daemon is alive or not.	1 - connection is alive 0 - connection is broken	-	The Agent2 user (‘zabbix’) must be added to the ‘docker’ group for sufficient privileges. Otherwise the check will fail.

Memchached

Key
	Description	Return value	Parameters	Comments
memcached.ping[connString,<user>,<password>]
	Test if a connection is alive or not.	1 - connection is alive 0 - connection is broken (if there is any error presented including AUTH and configuration issues)	connString - URI or session name.
memcached.stats[connString,<user>,<password>,<type>]
	Gets the output of the STATS command.	JSON - output is serialized as JSON	connString - URI or session name. user, password - Memchached login credentials. type - stat type to be returned: items, sizes, slabs or settings (empty by default, returns general statistics).

MongoDB

Key
	Description	Return value	Parameters	Comments
mongodb.collection.stats[connString,<user>,<password>,<database>,collection]
	Returns a variety of storage statistics for a given collection.	JSON object	connString - URI or session name. user, password - MongoDB login credentials. database - database name (default: admin). collection — collection name.
mongodb.collections.discovery[connString,<user>,<password>]
	Returns a list of discovered collections. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.collections.usage[connString,<user>,<password>]
	Returns usage statistics for collections.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.connpool.stats[connString,<user>,<password>]
	Returns information regarding the open outgoing connections from the current database instance to other members of the sharded cluster or replica set.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.db.stats[connString,<user>,<password>,<database>]
	Returns statistics reflecting a given database system state.	JSON object	connString - URI or session name. user, password - MongoDB login credentials. database - database name (default: admin).
mongodb.db.discovery[connString,<user>,<password>]
	Returns a list of discovered databases. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.jumbo_chunks.count[connString,<user>,<password>]
	Returns count of jumbo chunks.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.oplog.stats[connString,<user>,<password>]
	Returns a status of the replica set, using data polled from the oplog.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.ping[connString,<user>,<password>]
	Tests if a connection is alive or not.	1 - connection is alive 0 - connection is broken (if there is any error presented including AUTH and configuration issues).	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.rs.config[connString,<user>,<password>]
	Returns a current configuration of the replica set.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.rs.status[connString,<user>,<password>]
	Returns a replica set status from the point of view of the member where the method is run.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.server.status[connString,<user>,<password>]
	Returns database state.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.
mongodb.sh.discovery[connString,<user>,<password>]
	Returns a list of discovered shards present in the cluster.	JSON object	connString - URI or session name. user, password - MongoDB login credentials.

MQTT

Key
	Description	Return value	Parameters	Comments
mqtt.get[<broker_url>,topic,<username>,<password>]
	Subscribes to a specific topic or topics (with wildcards) of the provided broker and waits for publications.	Depending on topic content. If wildcards are used, returns topic content as JSON.	broker_url - MQTT broker URL (if empty, localhost with port 1883 is used). topic - MQTT topic (mandatory). Wildcards (+,#) are supported. username,password - authentication credentials (if required)	The item must be configured as an active check (‘Zabbix agent (active)’ item type). TLS encryption certificates can be used by saving them into a default location (e.g. `/etc/ssl/certs/` directory for Ubuntu). For TLS, use the `tls://` scheme.

MySQL

Key
	Description	Return value	Parameters	Comments
mysql.db.discovery[connString, <username>, <password>]
	List of MySQL databases. Used for low-level discovery.	Result of the “show databases” SQL query in LLD JSON format.	connString - URI or session name. username, password - MySQL login credentials.
mysql.db.size[connString, <username>, <password>,dbName]
	Database size in bytes.	Result of the “select coalesce(sum(data_length + index_length),0) as size from information_schema.tables where table_schema=?” SQL query for specific database in bytes.	connString - URI or session name. username, password - MySQL login credentials. dbName - Database name.
mysql.get_status_variables[connString, <username>, <password>]
	Values of global status variables.	Result of the “show global status” SQL query in JSON format.	connString - URI or session name. username, password - MySQL login credentials.
mysql.ping[connString, <username>, <password>]
	Test if a connection is alive or not.	1 - connection is alive 0 - connection is broken (if there is any error presented including AUTH and configuration issues).	connString - URI or session name. username, password - MySQL login credentials.
mysql.replication.discovery[connString, <username>, <password>]
	List of MySQL replications. Used for low-level discovery.	Result of the “show slave status” SQL query in LLD JSON format.	connString - URI or session name. username, password - MySQL login credentials.
mysql.replication.get_slave_status[connString, <username>, <password>, <masterHost>]
	Replication status.	Result of the “show slave status” SQL query in JSON format.	connString - URI or session name. username, password - MySQL login credentials. masterHost - Replication master host name.
mysql.version[connString, <username>, <password>]
	MySQL version.	String with MySQL instance version.	connString - URI or session name. username, password - MySQL login credentials.

Oracle

Key
	Description	Return value	Parameters	Comments
oracle.diskgroups.stats[connString,<user>,<password>,<service>]
	ASM disk groups statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.diskgroups.discovery[connString,<user>,<password>,<service>]
	List of ASM disk groups. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.archive.info[connString,<user>,<password>,<service>]
	Archive logs statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.cdb.info[connString,<user>,<password>,<service>]
	CDBs info.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.custom.query[connString,<user>,<password>,<service>, queryName, <args…>]
	Result of a custom query.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name. queryName — name of a custom query (must be equal to a name of an sql file without an extension). args… — one or several comma-separated arguments to pass to a query.
oracle.datafiles.stats[connString,<user>,<password>,<service>]
	Data files statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.db.discovery[connString,<user>,<password>,<service>]
	List of databases. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.fra.stats[connString,<user>,<password>,<service>]
	FRA statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.instance.info[connString,<user>,<password>,<service>]
	Instance statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.pdb.info[connString,<user>,<password>,<service>]
	PDBs info.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.pdb.discovery[connString,<user>,<password>,<service>]
	List of PDBs. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.pga.stats[connString,<user>,<password>,<service>]
	PGA statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.ping[connString,<user>,<password>,<service>]
	Tests whether a connection to Oracle can be established.	0 - connection is broken (if there is any error presented including AUTH and configuration issues) 1 - connection is successful.	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.proc.stats[connString,<user>,<password>,<service>]
	Processes statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.redolog.info[connString,<user>,<password>,<service>]
	Log file information from the control file.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.sga.stats[connString,<user>,<password>,<service>]
	SGA statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.sessions.stats[connString,<user>,<password>,<service>,<lockMaxTime>]
	Sessions statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name. lockMaxTime - maximum session lock duration in seconds to count the session as a prolongedly locked. Default: 600 seconds.
oracle.sys.metrics[connString,<user>,<password>,<service>,<duration>]
	A set of system metric values.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name. duration - capturing interval (in seconds) of system metric values. Possible values: 60 — long duration (default), 15 — short duration.
oracle.sys.params[connString,<user>,<password>,<service>]
	A set of system parameter values.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.ts.stats[connString,<user>,<password>,<service>]
	Tablespaces statistics.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.ts.discovery[connString,<user>,<password>,<service>]
	List of tablespaces. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name.
oracle.user.info[connString,<user>,<password>,<username>]
	List of tablespaces. Used for low-level discovery.	JSON object	connString - URI or session name. user, password - Oracle login credentials. service - Oracle service name. username - a username, for which the information is needed. Lowercase usernames are not supported. Default: current user.

PostgreSQL

Key
	Description	Return value	Parameters	Comments
pgsql.autovacuum.count[uri,<username>,<password>, <dbName>]
	The number of autovacuum workers.	SQL query.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.archive[uri,<username>,<password>, <dbName>]
	Information about archived files.	SQL query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.archive.count_archived_files - the number of WAL files that have been successfully archived. pgsql.archive.failed_trying_to_archive - the number of failed attempts for archiving WAL files. pgsql.archive.count_files_to_archive - the number of files to archive. pgsql.archive.size_files_to_archive -the size of files to archive.
pgsql.bgwriter[uri,<username>,<password>, <dbName>]
	Combined number of checkpoints for the database cluster, broken down by checkpoint type.	SQL query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.bgwriter.buffers_alloc - the number of buffers allocated. pgsql.bgwriter.buffers_backend -the number of buffers written directly by a backend. pgsql.bgwriter.maxwritten_clean - the number of times the background writer stopped a cleaning scan, because it had written too many buffers. pgsql.bgwriter.buffers_backend_fsync -the number of times a backend had to execute its own fsync call instead of the background writer. pgsql.bgwriter.buffers_clean - the number of buffers written by the background writer. pgsql.bgwriter.buffers_checkpoint - the number of buffers written during checkpoints. pgsql.bgwriter.checkpoints_timed - the number of scheduled checkpoints that have been performed. pgsql.bgwriter.checkpoints_req - the number of requested checkpoints that have been performed. pgsql.bgwriter.checkpoint_write_time - the total amount of time spent in the portion of checkpoint processing where files are written to disk, in milliseconds. pgsql.bgwriter.sync_time - the total amount of time spent in the portion of checkpoint processing where files are synchronized with disk.
pgsql.cache.hit[uri,<username>,<password>, <dbName>]
	PostgreSQL buffer cache hit rate.	SQL query in percentage.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.connections[uri,<username>,<password>, <dbName>]
	Connections by type.	JSON object.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.connections.active - the backend is executing a query. pgsql.connections.fastpath_function_call -the backend is executing a fast-path function. pgsql.connections.idle - the backend is waiting for a new client command. pgsql.connections.idle_in_transaction - the backend is in a transaction, but is not currently executing a query. pgsql.connections.prepared - the number of prepared connections. pgsql.connections.total - the total number of connections. pgsql.connections.total_pct - percantange of total connections in respect to ‘max_connections’ setting of the PostgreSQL server. pgsql.connections.waiting - number of connections in a query. pgsql.connections.idle_in_transaction_aborted - the backend is in a transaction, but is not currently executing a query and one of the statements in the transaction caused an error.
pgsql.dbstat[uri,<username>,<password>, dbName]
	Collects statistics per database. Used for low-level discovery.	SQL query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.dbstat.numbackends[“{#DBNAME}”] - time spent reading data file blocks by backends in this database, in milliseconds. pgsql.dbstat.sum.blk_read_time[“{#DBNAME}”] - time spent reading data file blocks by backends in this database, in milliseconds. pgsql.dbstat.sum.blk_write_time[“{#DBNAME}”] - time spent writing data file blocks by backends in this database, in milliseconds. pgsql.dbstat.sum.checksum_failures[“{#DBNAME}”] - the number of data page checksum failures detected (or on a shared object), or NULL if data checksums are not enabled.(PostgreSQL version 12 only) pgsql.dbstat.blks_read.rate[“{#DBNAME}”] - the number of disk blocks read in this database. pgsql.dbstat.deadlocks.rate[“{#DBNAME}”] - the number of deadlocks detected in this database. pgsql.dbstat.blks_hit.rate[“{#DBNAME}”] - the 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 Pro buffer cache, not the operating system’s file system cache). pgsql.dbstat.xact_rollback.rate[“{#DBNAME}”] - the number of transactions in this database that have been rolled back. pgsql.dbstat.xact_commit.rate[“{#DBNAME}”] - the number of transactions in this database that have been committed. pgsql.dbstat.tup_updated.rate[“{#DBNAME}”] - the number of rows updated by queries in this database. pgsql.dbstat.tup_returned.rate[“{#DBNAME}”] - the number of rows returned by queries in this database. pgsql.dbstat.tup_inserted.rate[“{#DBNAME}”] - the number of rows inserted by queries in this database. pgsql.dbstat.tup_fetched.rate[“{#DBNAME}”] - the number of rows fetched by queries in this database. pgsql.dbstat.tup_deleted.rate[“{#DBNAME}”] - the number of rows deleted by queries in this database. pgsql.dbstat.conflicts.rate[“{#DBNAME}”] - the number of queries canceled due to conflicts with recovery in this database (the conflicts occur only on standby servers). pgsql.dbstat.temp_files.rate[“{#DBNAME}”] - the number of temporary files created by queries in this database. All temporary files are counted, regardless of the log_temp_files settings and reasons for which the temporary file was created (e.g., sorting or hashing). pgsql.dbstat.temp_bytes.rate[“{#DBNAME}”] - the total amount of data written to temporary files by queries in this database. Includes data from all temporary files, regardless of the log_temp_files settings and reasons for which the temporary file was created (e.g., sorting or hashing).
pgsql.dbstat.sum[uri,<username>,<password>, <dbName>]
	Summarized data for all databases in a cluster.	SQL query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by the dependent items: pgsql.dbstat.numbackends - the number of backends currently connected to this database. pgsql.dbstat.sum.blk_read_time - time spent reading data file blocks by backends in this database, in milliseconds. pgsql.dbstat.sum.blk_write_time - time spent writing data file blocks by backends in this database, in milliseconds. pgsql.dbstat.sum.checksum_failures - the number of data page checksum failures detected (or on a shared object), or NULL if data checksums are not enabled (PostgreSQL version 12 only). pgsql.dbstat.sum.xact_commit - the number of transactions in this database that have been committed. pgsql.dbstat.sum.conflicts - database statistics about query cancels due to conflict with recovery on standby servers. pgsql.dbstat.sum.deadlocks - the number of deadlocks detected in this database. pgsql.dbstat.sum.blks_read - the number of disk blocks read in this database. pgsql.dbstat.sum.blks_hit - the number of times disk blocks were found already in the buffer cache, so a read was not necessary (only hits in the PostgreSQL Pro buffer cache are included). pgsql.dbstat.sum.temp_bytes - the total amount of data written to temporary files by queries in this database. Includes data from all temporary files, regardless of the log_temp_files settings and reasons for which the temporary file was created (e.g., sorting or hashing). pgsql.dbstat.sum.temp_files - the number of temporary files created by queries in this database. All temporary files are counted, regardless of the log_temp_files settings and reasons for which the temporary file was created (e.g., sorting or hashing). pgsql.dbstat.sum.xact_rollback - the number of rolled-back transactions in this database. pgsql.dbstat.sum.tup_deleted - the number of rows deleted by queries in this database. pgsql.dbstat.sum.tup_fetched - the number of rows fetched by queries in this database. pgsql.dbstat.sum.tup_inserted - the number of rows inserted by queries in this database. pgsql.dbstat.sum.tup_returned - the number of rows returned by queries in this database. pgsql.dbstat.sum.tup_updated - the number of rows updated by queries in this database.
pgsql.db.age[uri,<username>,<password>, dbName]
	Age of the oldest FrozenXID of the database. Used for low-level discovery.	SQL query for specific database in transactions.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.db.bloating_tables[uri,<username>,<password>, <dbName>]
	The number of bloating tables per database. Used for low-level discovery.	SQL query.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.db.discovery[uri,<username>,<password>, <dbName>]
	List of the PostgreSQL databases. Used for low-level discovery.	SQL query in the LLD JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.db.size[uri,<username>,<password>, dbName]
	Database size in bytes. Used for low-level discovery.	SQL query for specific database in bytes.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.locks[uri,<username>,<password>, <dbName>]
	Information about granted locks per database. Used for low-level discovery.	SQl query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.locks.shareupdateexclusive[“{#DBNAME}”] - the number of share update exclusive locks. pgsql.locks.accessexclusive[“{#DBNAME}”] - the number of access exclusive locks. pgsql.locks.accessshare[“{#DBNAME}”] - the number of access share locks. pgsql.locks.exclusive[“{#DBNAME}”] - the number of exclusive locks. pgsql.locks.rowexclusive[“{#DBNAME}”] - the number of row exclusive locks. pgsql.locks.rowshare[“{#DBNAME}”] - the number of row share locks. pgsql.locks.share[“{#DBNAME}”] - the number of shared locks. pgsql.locks.sharerowexclusive[“{#DBNAME}”] - the number of share row exclusive locks.
pgsql.oldest.xid[uri,<username>,<password>, <dbName>]
	Age of the oldest XID.	SQl query.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.ping[uri,<username>,<password>, <dbName>]
	Tests whether a connection is alive or not.	1 - connection is alive 0 - connection is broken (if there is any error presented including AUTH and configuration issues).	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.replication.count[uri,<username>,<password>, <dbName>]
	The number of standby servers.	SQL query.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.replication.recovery_role[uri,<username>,<password>, <dbName>]
	Recovery status.	0 - master mode 1 - recovery is still in progress (standby mode)	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.replication.status[uri,<username>,<password>, <dbName>]
	The status of replication.	0 - streaming is down 1 - streaming is up 2 - master mode	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.replication_lag.b[uri,<username>,<password>, <dbName>]
	Replication lag in bytes.	SQL query in bytes.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.replication_lag.sec[uri,<username>,<password>, <dbName>]
	Replication lag in seconds.	SQL query in seconds.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.uptime[uri,<username>,<password>, <dbName>]
	PostgreSQL uptime in milliseconds.	SQL query in milliseconds.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.
pgsql.wal.stat[uri,<username>,<password>, <dbName>]
	WAL statistics.	SQL query in JSON format.	uri - URI or session name. username, password - PostgreSQL credentials. dbName - Database name.	Returned data are processed by dependent items: pgsql.wal.count — the number of WAL files. pgsql.wal.write - the WAL lsn used (in bytes).

Redis

Key
	Description	Return value	Parameters	Comments
redis.config[connString,<password>,<pattern>]
	Gets the configuration parameters of a Redis instance that match the pattern.	JSON - if a glob-style pattern was used single value - if a pattern did not contain any wildcard character	connString - URI or session name. password - Redis password. pattern - glob-style pattern (* by default).
redis.info[connString,<password>,<section>]
	Gets the output of the INFO command.	JSON - output is serialized as JSON	connString - URI or session name. password - Redis password. section - section of information (default by default).
redis.ping[connString,<password>]
	Test if a connection is alive or not.	1 - connection is alive 0 - connection is broken (if there is any error presented including AUTH and configuration issues)	connString - URI or session name. password - Redis password.
redis.slowlog.count[connString,<password>]
	The number of slow log entries since Redis was started.	Integer	connString - URI or session name. password - Redis password.

S.M.A.R.T.

Key
	Description	Return value	Parameters	Comments
smart.attribute.discovery
	Returns a list of S.M.A.R.T. device attributes.	JSON object		The following macros and their values are returned: {#NAME}, {#DISKTYPE}, {#ID}, {#ATTRNAME}, {#THRESH}. HDD, SSD and NVME drive types are supported. Drives can be alone or combined in a RAID. {#NAME} will have an add-on in case of RAID, e.g: {“{#NAME}”: “/dev/sda cciss,2”}
smart.disk.discovery
	Returns a list of S.M.A.R.T. devices.	JSON object		The following macros and their values are returned: {#NAME}, {#DISKTYPE}, {#MODEL}, {#SN}. HDD, SSD and NVME drive types are supported. Drives can be alone or combined in a RAID. {#NAME} will have an add-on in case of RAID, e.g: {“{#NAME}”: “/dev/sda cciss,2”}
smart.disk.get
	Returns all available properties of S.M.A.R.T. devices.	JSON object		HDD, SSD and NVME drive types are supported. Drives can be alone or combined in a RAID. The data includes smartctl version and call arguments, and additional fields: disk_name - holds the name with the required add-ons for RAID discovery, e.g: {“disk_name”: “/dev/sda cciss,2”} disk_type - holds the disk type HDD, SSD, or NVME, e.g: {“disk_type”: “ssd”})

Systemd

Key
	Description	Return value	Parameters	Comments
systemd.unit.get[unit name,<interface>]
	Returns all properties of a systemd unit.	JSON object	unit name - unit name (you may want to use the {#UNIT.NAME} macro in item prototype to discover the name) interface - unit interface type, possible values: Unit (default), Service, Socket, Device, Mount, Automount, Swap, Target, Path	This item is supported on Linux platform only. LoadState, ActiveState and UnitFileState for Unit interface are returned as text and integer: `“ActiveState”:{“state”:1,”text”:”active”}`
systemd.unit.info[unit name,<property>,<interface>]
	Systemd unit information.	String	unit name - unit name (you may want to use the {#UNIT.NAME} macro in item prototype to discover the name) property - unit property (e.g. ActiveState (default), LoadState, Description) interface - unit interface type (e.g. Unit (default), Socket, Service)	This item allows to retrieve a specific property from specific type of interface as described in dbus API. This item is supported on Linux platform only. Examples: => systemd.unit.info[“{#UNIT.NAME}”] - collect active state (active, reloading, inactive, failed, activating, deactivating) info on discovered systemd units => systemd.unit.info[“{#UNIT.NAME}”,LoadState] - collect load state info on discovered systemd units => systemd.unit.info[mysqld.service,Id] - retrieve service technical name (mysqld.service) => systemd.unit.info[mysqld.service,Description] - retrieve service description (MySQL Server) => systemd.unit.info[mysqld.service,ActiveEnterTimestamp] - retrieve the last time the service entered the active state (1562565036283903) => systemd.unit.info[dbus.socket,NConnections,Socket] - collect the number of connections from this socket unit
systemd.unit.discovery[<type>]
	List of systemd units and their details. Used for low-level discovery.	JSON object	type - possible values: all, automount, device, mount, path, service (default), socket, swap, target	This item is supported on Linux platform only.

Web certificate

Key
	Description	Return value	Parameters	Comments
web.certificate.get[hostname,<port>,<address>]
	Validates certificates and returns certificate details.	JSON object	hostname - can be either IP or DNS. May contain the URL scheme (https only), path (it will be ignored), and port. If a port is provided in both the first and the second parameters, their values must match. If address (the 3rd parameter) is specified, the hostname is only used for SNI and hostname verification. port - port number (default is 443 for HTTPS). address - can be either IP or DNS. If specified, it will be used for connection, and hostname (the 1st parameter) will be used for SNI, and host verification. In case, the 1st parameter is an IP and the 3rd parameter is DNS, the 1st parameter will be used for connection, and the 3rd parameter will be used for SNI and host verification.	This item turns unsupported if the resource specified in `host` does not exist or is unavailable or if TLS handshake fails with any error except an invalid certificate. Currently, AIA (Authority Information Access) X.509 extension, CRLs and OCSP (including OCSP stapling), Certificate Transparency, and custom CA trust store are not supported.