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MySQL NDB Cluster 7.5
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7.10.41 The ndbinfo threadblocks Table

The threadblocks table associates data nodes, threads, and instances of NDB kernel blocks.

The following table provides information about the columns in the threadblocks table. For each column, the table shows the name, data type, and a brief description. Additional information can be found in the notes following the table.

Column NameTypeDescription
node_idintegerNode ID
thr_nointegerThread ID
block_namestringBlock name
block_instanceintegerBlock instance number

The block_name is one of the values found in the block_name column when selecting from the ndbinfo.blocks table. Although the list of possible values is static for a given NDB Cluster release, the list may vary between releases.

The block_instance column provides the kernel block instance number; block_name provides the block name. You can use these values to obtain information about specific threads from the threadblocks table.


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