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selvaganesang <selva.govindarajan@esgyn.com>
committed
on 07 Apr 17
[TRAFODION-2420] RMS enhancements
Improved BMO operation accounting. Two new counters are added
a) scratchIOSize - Size in KB of the scratch… Show more
[TRAFODION-2420] RMS enhancements

Improved BMO operation accounting. Two new counters are added

a) scratchIOSize - Size in KB of the scratch IO

b) scratchIOMaxTime - Time in microseconds taken by any long pole

                ESP instance to do scratch IO operations

The ScrBufSize, ScrBufRead and ScrBufWritten are no longer displayed

in the formatted get statistics command outputs.

Reduced the default value of CQD HBASE_NUM_CACHE_ROWS_MAX to 1024 from

10000 to reduce stress on the client JVM memory.

Disabled the memory pressure triggering in the BMO operators by increasing

the threshold GEN_MEM_PRESSURE_THRESHOLD to 10000 from 100. The memory

pressure detection code was inadvertently enabled when the cap to limit

memory pressure constant to 100 was removed.

Memory pressure triggers in BMO operators will be enabled later when

we understand the memory pressure detection better.

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