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22.5.10.37 The ndbinfo table_fragments Table
The table_fragments table provides
information about the fragmentation, partitioning, distribution,
and (internal) replication of NDB tables.
The following table provides information about the columns in
table_fragments. For each column, the table
shows the name, data type, and a brief description.
Table 22.413 Columns of the table_fragments table
| Column Name | Type | Description |
|---|---|---|
node_id |
integer | Node ID (DIH master) |
table_id |
integer | Table ID |
partition_id |
integer | Partition ID |
fragment_id |
integer | Fragment ID (same as partition ID unless table is fully replicated) |
partition_order |
integer | Order of fragment in partition |
log_part_id |
integer | Log part ID of fragment |
no_of_replicas |
integer | Number of replicas |
current_primary |
integer | Current primary node ID |
preferred_primary |
integer | Preferred primary node ID |
current_first_backup |
integer | Current first backup node ID |
current_second_backup |
integer | Current second backup node ID |
current_third_backup |
integer | Current third backup node ID |
num_alive_replicas |
integer | Current number of live replicas |
num_dead_replicas |
integer | Current number of dead replicas |
num_lcp_replicas |
integer | Number of replicas remaining to be checkpointed |
Document created the 26/06/2006, last modified the 26/10/2018
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