MySQL 5.7 Reference Manual Including MySQL NDB Cluster 7.5 and NDB Cluster 7.6
The table_replicas table provides information
about the copying, distribution, and checkpointing of
NDB table fragments and fragment replicas.
The table_replicas table contains the
following columns:
node_id
ID of the node from which data is fetched
(DIH master)
table_id
Table ID
fragment_id
Fragment ID
initial_gci
Initial GCI for table
replica_node_id
ID of node where fragment replica is stored
is_lcp_ongoing
Is 1 if LCP is ongoing on this fragment, 0 otherwise
num_crashed_replicas
Number of crashed fragment replica instances
last_max_gci_started
Highest GCI started in most recent LCP
last_max_gci_completed
Highest GCI completed in most recent LCP
last_lcp_id
ID of most recent LCP
prev_lcp_id
ID of previous LCP
prev_max_gci_started
Highest GCI started in previous LCP
prev_max_gci_completed
Highest GCI completed in previous LCP
last_create_gci
Last Create GCI of last crashed fragment replica instance
last_replica_gci
Last GCI of last crashed fragment replica instance
is_replica_alive
1 if this fragment replica is alive, 0 otherwise
The table_replicas table was added in NDB
7.5.4.