Performance Schema replication_applier_status_by_worker Table

MariaDB starting with 10.6.0

The replication_applier_status_by_worker table was added in MariaDB 10.6.0.

The Performance Schema replication_applier_status_by_worker table displays replica worker thread specific information.

It contains the following fields.

Column	Description
Column	Description
CHANNEL_NAME	Name of replication channel through which the transaction is received.
THREAD_ID	Thread_Id as displayed in the performance_schema.threads table for thread with name 'thread/sql/rpl_parallel_thread'. THREAD_ID will be NULL when worker threads are stopped due to error/force stop.
SERVICE_STATE	Whether or not the thread is running.
LAST_SEEN_TRANSACTION	Last GTID executed by worker
LAST_ERROR_NUMBER	Last Error that occurred on a particular worker.
LAST_ERROR_MESSAGE	Last error specific message.
LAST_ERROR_TIMESTAMP	Time stamp of last error.
WORKER_IDLE_TIME	Total idle time in seconds that the worker thread has spent waiting for work from SQL thread.
LAST_TRANS_RETRY_COUNT	Total number of retries attempted by last transaction.

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