21.6.15.39 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_idID of the node from which data is fetched (
DIHmaster) -
table_idTable ID
-
fragment_idFragment ID
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initial_gciInitial GCI for table
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replica_node_idID of node where fragment replica is stored
-
is_lcp_ongoingIs 1 if LCP is ongoing on this fragment, 0 otherwise
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num_crashed_replicasNumber of crashed fragment replica instances
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last_max_gci_startedHighest GCI started in most recent LCP
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last_max_gci_completedHighest GCI completed in most recent LCP
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last_lcp_idID of most recent LCP
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prev_lcp_idID of previous LCP
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prev_max_gci_startedHighest GCI started in previous LCP
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prev_max_gci_completedHighest GCI completed in previous LCP
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last_create_gciLast Create GCI of last crashed fragment replica instance
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last_replica_gciLast GCI of last crashed fragment replica instance
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is_replica_alive1 if this fragment replica is alive, 0 otherwise
Notes
The table_replicas table was added in NDB 7.5.4.
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