21.5.14.39 The ndbinfo table_replicas Table
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 replica is stored
is_lcp_ongoing
Is 1 if LCP is ongoing on this fragment, 0 otherwise
num_crashed_replicas
Number of crashed 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 replica instance
last_replica_gci
Last GCI of last crashed replica instance
is_replica_alive
1 if this replica is alive, 0 otherwise
Notes
The table_replicas
table was added in NDB 7.5.4.