The table_distribution_status table provides information about the progress of table distribution for NDB tables.
The table_distribution_status table contains the following columns:
node_id
Node id
table_id
Table ID
tab_copy_status
Status of copying of table distribution data to disk; one of IDLE, SR_PHASE1_READ_PAGES, SR_PHASE2_READ_TABLE, SR_PHASE3_COPY_TABLE, REMOVE_NODE, LCP_READ_TABLE, COPY_TAB_REQ, COPY_NODE_STATE, ADD_TABLE_COORDINATOR (prior to NDB 8.0.23: ADD_TABLE_MASTER), ADD_TABLE_PARTICIPANT (prior to NDB 8.0.23: ADD_TABLE_SLAVE), INVALIDATE_NODE_LCP, ALTER_TABLE, COPY_TO_SAVE, or GET_TABINFO
tab_update_status
Status of updating of table distribution data; one of IDLE, LOCAL_CHECKPOINT, LOCAL_CHECKPOINT_QUEUED, REMOVE_NODE, COPY_TAB_REQ, ADD_TABLE_MASTER, ADD_TABLE_SLAVE, INVALIDATE_NODE_LCP, or CALLBACK
tab_lcp_status
Status of table LCP; one of ACTIVE (waiting for local checkpoint to be performed), WRITING_TO_FILE (checkpoint performed but not yet written to disk), or COMPLETED (checkpoint performed and persisted to disk)
tab_status
Table internal status; one of ACTIVE (table exists), CREATING (table is being created), or DROPPING (table is being dropped)
tab_storage
Table recoverability; one of NORMAL (fully recoverable with redo logging and checkpointing), NOLOGGING (recoverable from node crash, empty following cluster crash), or TEMPORARY (not recoverable)
tab_partitions
Number of partitions in table
tab_fragments
Number of fragments in table; normally same as tab_partitions; for fully replicated tables equal to tab_partitions * [number of node groups]
current_scan_count
Current number of active scans
scan_count_wait
Current number of scans waiting to be performed before ALTER TABLE can complete.
is_reorg_ongoing
Whether the table is currently being reorganized (1 if true)