getSessionMemoryStat

Syntax

getSessionMemoryStat()

None

Return information about memory usage of all sessions on the current node. It returns a table containing the following columns:

Cache Types:


Cache Types	Meaning
DimensionalTable	the cache of dimension tables (in Bytes)
SharedTable	the cache of shared tables (in Bytes)
OLAPTablet	the cache of the OLAP databases (in Bytes)
OLAPCacheEngine	the memory usage of OLAP cache engine (in Bytes)
OLAPCachedSymbolBase	the cache of SYMBOL base in OLAP engine (in Bytes)
DFSMetadata	the cache of DFS metadata (in Bytes)
TSDBCacheEngine	the cache of the TSDB engine (in Bytes)
TSDBLevelFileIndex	the cache of level file index in the TSDB engine (in Bytes)
TSDBCachedSymbolBase	the cache of SYMBOL base in TSDB engine (in Bytes)
StreamingPubQueue	the unprocessed messages in a publisher queue
StreamingSubQueue	the unprocessed messages in a subscriber queue

Note:

This function does not return the memory occupied by tasks being executed in the session.
For the columns createTime and lastActiveTime in the result table, versions before 1.30.21.4/2.00.9.4 return GMT time. From version 1.30.21.4/2.00.9.4 onwards, these columns return time in your current time zone.

t = getSessionMemoryStat();
t;