Hi Pranay, According to http://docs.datastax.com/en/cassandra/3.0/cassandra/tools/toolsTPstats.html, "*MemtableReclaimMemory*" is the thread pool used for "Making unused memory available". I don't know much about it since it was never an issue for me. Neither did I heard much about it.
- Are pending tasks staying high for a long period? `watch -d nodetool tpstats` - What are your GC settings? - Any other threads pending, blocked or dropped? - Do you have errors or warnings in your logs? - Any GC pressure? (monitored through charts or logs at INFO level, or WARN on recent versions) C*heers, ----------------------- Alain Rodriguez - @arodream - al...@thelastpickle.com France The Last Pickle - Apache Cassandra Consulting http://www.thelastpickle.com 2017-04-16 16:04 GMT+02:00 Pranay akula <pranay.akula2...@gmail.com>: > Hi, > > what is *MemtableReclaimMemory* mean in nodetooltpstats ?? does this mean > trying to flushing memtable from memory to SStables. > > I can see sometimes increase in pending tasks of MemtableReclaimMemory in > nodetool tpstats, at that time i can see increase in load on those nodes. > > Does decreasing memtable_cleanup_threshold will help ?? > > Thanks > Pranay. >
