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Updated on 2023-10-23 GMT+08:00

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GS_STAT_SESSION_CU

GS_STAT_SESSION_CU queries the CU hit rate of running sessions on each node in a cluster. This data about a session is cleared when you exit this session After the cluster is restarted, the statistics are also cleared. This view can be viewed only by the users with monitor admin and sysadmin permission.

**Table 1** GS_STAT_SESSION_CU columns
Name	Type	Description
node_name1	text	Node name
mem_hit	integer	Number of memory hits
hdd_sync_read	integer	Number of synchronous hard disk reads
hdd_asyn_read	integer	Number of asynchronous hard disk reads

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