IBM DB2 for LUW (remote monitoring)

Supported by Dynatrace

Remotely monitor your DB2 instances to collect data on transactions, connections, buffer pools. tablespaces, and transaction logs.

Remotely monitor DB2 databases where you cannot install an OneAgent.

Compatibility information

IBM DB2 LUW

Detail

Metrics collected

The relevant feature sets must be enabled for the metrics to be collected.

Default

db2.availability - Ability to connect to DB2 instance
db2.db_status - Status of the DB2 database member

Database

db2.appl_cur_cons - Applications connected currently
db2.dynamic_sql_stmts.count - Dynamic SQL statements attempted
db2.failed_sql_stmts.count - Failed statement operations
db2.total_app_commits.count - Total application commits
db2.int_commits.count - Internal commits
db2.total_app_rollbacks.count - Total application rollbacks
db2.int_rollbacks.count - Internal rollbacks
db2.total_cpu_time.count - Total CPU time
db2.total_wait_time.count - Total wait time
db2.total_rqst_time.count - Total request time
db2.rows_returned.count - Rows returned
db2.rows_read.count - Rows read
db2.rows_updated.count - Rows updated
db2.rows_deleted.count - Rows deleted
db2.rows_inserted.count - Rows inserted
db2.lock_wait_time.count - Lock wait time
db2.deadlocks.count - Deadlocks
db2.lock_timeouts.count - Lock timeouts
db2.pool_index_lbp_pages_found.count - Local buffer pool index pages found
db2.pool_async_index_lbp_pages_found.count - Local buffer pool index pages found
db2.pool_index_l_reads.count - Buffer pool index logical reads
db2.pool_temp_index_l_reads.count - Buffer pool temporary index logical reads
db2.pool_data_lbp_pages_found.count - Local buffer pool found data pages
db2.pool_async_data_lbp_pages_found.count - Asynchronous local buffer pool data pages found
db2.pool_data_l_reads.count - Buffer pool data logical reads
db2.pool_temp_data_l_reads.count - Buffer pool temporary data logical reads
db2.pool_xda_lbp_pages_found.count - Local buffer pool XDA data pages found
db2.pool_async_xda_lbp_pages_found.count - Asynchronous local buffer pool XDA data pages found
db2.pool_xda_l_reads.count - Buffer pool XDA data logical reads
db2.pool_temp_xda_l_reads.count - Buffer pool temporary XDA data logical reads
db2.pool_data_p_reads.count - Buffer pool data physical reads
db2.pool_index_p_reads.count - Buffer pool index physical reads
db2.pool_xda_p_reads.count - Buffer pool XDA data physical reads
db2.pool_temp_data_p_reads.count - Buffer pool temporary data physical reads
db2.pool_temp_index_p_reads.count - Buffer pool temporary index physical reads
db2.pool_temp_xda_p_reads.count - Buffer pool temporary XDA data physical reads
db2.pool_drty_pg_steal_clns.count - Buffer pool victim page cleaners triggered
db2.total_sorts.count - Total sorts

Transaction log

db2.log_write_time.count - Log write time
db2.total_log_used - Total log space used
db2.total_log_available - Total log space available

Tablespace

db2.tbsp_total_pages - Total pages in table space
db2.tbsp_used_pages - Used pages in table space

Calculated metrics

Calculated metrics (prefixed with 'func:') are calculated on the Dynatrace cluster side based on the metrics collected through the extension. Some calculated metrics require metrics from certain feature sets, so if you do not have all feature sets enabled you may encounter errors when attempting to chart them.

func:db2.app_transactions (database) - Number of application transactions executed. Commits and rollbacks.
func:db2.table_reads_per_returned_rows_ratio (database) - Cache usage during transaction reads.
func:db2.lock_wait_per_transaction_ratio (database) - Lock wait time per transaction.
func:db2.lock_fails_per_transaction_ratio (database) - Lock fails (deadlocks and lock timeouts) per transaction.
func:db2.log_flush_time_per_transaction_ratio (database, transaction_log) - The time an agent waits for log records to be flushed to disk.
func:db2.pool_index_page_hits (database) - Index pages usage.
func:db2.pool_data_page_hits (database) - Data pages usage.
func:db2.pool_xda_page_hits (database) - XML storage object (XDA) pages usage.
func:db2.pool_physical_reads_per_transaction_ratio (database) - Pool physical reads per transaction.
func:db2.pool_physical_writes_per_transaction_ratio (database) - Pool physical writes per transaction.
func:db2.pool_dirty_steal_triggers_per_transaction_ratio (database) - Number of ‘dirty steal’ triggers per transaction.
func:db2.sorts_per_transaction_ratio (database) - The amount of sort operations per transaction.
func:db2.all_transactions.count (database) - All transactions including internally initiated commits and rollbacks.
func:db2.response_time (database) - CPU and wait time divided by commits and rollbacks.
func:db2.tbsp_page_utilization (tablespace) - Percentage of tablespace in use by tablespace.
func:db2.total_log_utilization (transaction_log) - Percentage of transaction log space used.

Metric event

One metric event for alerting configuration is included: 'DB2 - Instance Unavailable'. Find this is Settings > Anomaly detection > Metric events and enable it to have availability events created on the database instance entity if no data is collected for 3 out of 5 minute intervals.

Get started

Activating the extension

Activate Extension in the Hub by going to:
Extensions → DB2 → Add to environment
Add a new monitoring configuration for every DB2 instance you'd like to monitor

The monitoring configurations will be assigned to an ActiveGate group. Make sure the group selected contains ActiveGates that can reach the DB2 instances in that monitoring configuration.

Creating a DB2 user

The DB2 user must have read access to monitoring table functions. One of the following authorizations is required:

EXECUTE privilege on the monitoring routines (depening on feature sets used)
- MON_GET_DATABASE
- MON_GET_TRANSACTION_LOG
- MON_GET_TABLESPACE
DATAACCESS authority
DBADM authority
SQLADM authority

FAQ

What if I need to connect using SSL?

The current DB2 extension and data source do not support SSL connections. This will be added in a future release.

Metrics

Name	Metric key	Unit	Description
Apps currently connected	db2.appl_cur_cons	Count	Indicates the number of applications that are currently connected to the database.
Dynamic SQL statements	db2.dynamic_sql_stmts.count	Count	The number of dynamic SQL statements that were attempted.
Failed SQL statements	db2.failed_sql_stmts.count	Count	The number of SQL statements that were attempted, but failed.
Total app commits	db2.total_app_commits.count	Count	Total number of commit statements issued by the client application.
Internal commits	db2.int_commits.count	Count	The total number of commits initiated internally by the database manager.
App rollbacks	db2.total_app_rollbacks.count	Count	Total number of rollback statements issued by the client application.
Internal rollbacks	db2.int_rollbacks.count	Count	The total number of rollbacks initiated internally by the database manager.
CPU time	db2.total_cpu_time.count	MicroSecond	The total amount of CPU time used while within the database system. Represents total of both user and system CPU time.
Wait time	db2.total_wait_time.count	MicroSecond	The total time spent waiting within the database server.
Request time	db2.total_rqst_time.count	MilliSecond	The total amount of time spent working on requests.
Rows returned	db2.rows_returned.count	Count	The number of rows that have been selected and returned to the application.
Rows read	db2.rows_read.count	Count	The number of rows read from the tables.
Rows updated	db2.rows_updated.count	Count	This is the number of row updates attempted.
Rows deleted	db2.rows_deleted.count	Count	This is the number of row deletions attempted.
Rows inserted	db2.rows_inserted.count	Count	The number of row insertions attempted.
Lock wait time	db2.lock_wait_time.count	MilliSecond	The total elapsed time spent waiting for locks.
Deadlocks	db2.deadlocks.count	Count	The total number of deadlocks that have occurred.
Lock timeouts	db2.lock_timeouts.count	Count	The number of times that a request to lock an object timed out instead of being granted.
Buffer pool data writes	db2.pool_data_writes.count	Count	The number of times a buffer pool data page was physically written to disk.
Buffer pool index writes	db2.pool_index_writes.count	Count	Indicates the number of times a buffer pool index page was physically written to disk.
Buffer pool XDA writes	db2.pool_xda_writes.count	Count	Indicates the number of times a buffer pool data page for an XML storage object (XDA) was physically written to disk.
Local buffer pool index pages found	db2.pool_index_lbp_pages_found.count	Count	Indicates the number of index pages which have been synchronously read by agents and asynchronously read by prefetchers from the local buffer pool (logical) for regular and large table spaces.
Async local buffer pool index pages found	db2.pool_async_index_lbp_pages_found.count	Count	The number of times an index page was present in the local buffer pool when a prefetcher attempted to access it.
Buffer pool index logical reads	db2.pool_index_l_reads.count	Count	Indicates the number of index pages which have been synchronously read by agents from the buffer pool (logical) for regular and large table spaces.
Buffer pool temp index logical reads	db2.pool_temp_index_l_reads.count	Count	Indicates the number of index pages which have been requested from the buffer pool (logical) for temporary table spaces.
Local buffer pool data pages found	db2.pool_data_lbp_pages_found.count	Count	Indicates the number of data pages which have been synchronously read by agents and asynchronously read by prefetchers from the local buffer pool (logical) for regular and large table spaces.
Async local buffer pool data pages found	db2.pool_async_data_lbp_pages_found.count	Count	The number of times a data page was present in the local buffer pool when a prefetcher attempted to access it.
Buffer pool data logical reads	db2.pool_data_l_reads.count	Count	Indicates the number of data pages which have been synchronously read by agents from the buffer pool (logical) for regular and large table spaces.
Buffer pool temp data logical reads	db2.pool_temp_data_l_reads.count	Count	Indicates the number of data pages which have been requested from the buffer pool (logical) for temporary table spaces.
Local buffer pool XDA pages found	db2.pool_xda_lbp_pages_found.count	Count	Indicates the number of data pages for an XML storage object (XDA) which have been synchronously read by agents and asynchronously read by prefetchers from the local buffer pool (logical) for regular and large table spaces.
Async local buffer pool XDA pages found	db2.pool_async_xda_lbp_pages_found.count	Count	The number of times a data page for an XML storage object (XDA) was requested by a prefetcher from and found in the local buffer pool.
Buffer pool XDA logical reads	db2.pool_xda_l_reads.count	Count	Indicates the number of data pages for XML storage objects (XDAs) which have been synchronously read by agents from the buffer pool (logical) for regular and large table spaces.
Buffer pool temp XDA logical reads	db2.pool_temp_xda_l_reads.count	Count	Indicates the number of pages for XML storage object (XDA) data which have been requested from the buffer pool (logical) for temporary table spaces.
Buffer pool data physical reads	db2.pool_data_p_reads.count	Count	Indicates the number of data pages which have been synchronously read by agents and asynchronously read by prefetchers from the table space containers (physical) for regular and large table spaces.
Buffer pool index physical reads	db2.pool_index_p_reads.count	Count	Indicates the number of index pages which have been synchronously read by agents and asynchronously read by prefetchers from the table space containers (physical) for regular and large table spaces.
Buffer pool XDA physical reads	db2.pool_xda_p_reads.count	Count	Indicates the number of data pages for XML storage objects (XDAs) which have been synchronously read by agents and asynchronously read by prefetchers from the table space containers (physical) for regular and large table spaces.
Buffer pool temp data physical reads	db2.pool_temp_data_p_reads.count	Count	Indicates the number of data pages read in from the table space containers (physical) for temporary table spaces.
Buffer pool temp index physical reads	db2.pool_temp_index_p_reads.count	Count	Indicates the number of index pages read in from the table space containers (physical) for temporary table spaces.
Buffer pool temp XDA physical reads	db2.pool_temp_xda_p_reads.count	Count	Indicates the number of pages for XML storage object (XDA) data read in from the table space containers (physical) for temporary table spaces.
Buffer pool victim page cleaners triggered	db2.pool_drty_pg_steal_clns.count	Count	The number of times a page cleaner was invoked because a synchronous write was needed during the victim buffer replacement for the database.
Total sorts	db2.total_sorts.count	Count	The total number of sorts that have been executed.

Name	Metric key	Unit	Description
Tablespace total pages	db2.tbsp_total_pages	Count	Total number of pages in a table space.
Tablespace used pages	db2.tbsp_used_pages	Count	The total number of pages that are currently used (not free) in a table space.

Name	Metric key	Unit	Description
Log write time	db2.log_write_time.count	MilliSecond	The total elapsed time spent by the logger writing log data to the disk.
Transaction log used	db2.total_log_used	Byte	The total amount of active log space currently used in the database.
Transaction log available	db2.total_log_available	Byte	The amount of active log space in the database that is not being used by uncommitted transactions.