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Abdul Patel commented on CASSANDRA-14495: ----------------------------------------- got it , you are recommeding this parameter to be set @ 55? what would be downside of it? -XX:InitiatingHeapOccupancyPercent=70 > Memory Leak /High Memory usage post 3.11.2 upgrade > -------------------------------------------------- > > Key: CASSANDRA-14495 > URL: https://issues.apache.org/jira/browse/CASSANDRA-14495 > Project: Cassandra > Issue Type: Bug > Components: Metrics > Reporter: Abdul Patel > Priority: Major > Attachments: cas_heap.txt > > > Hi All, > > I recently upgraded my non prod cassandra cluster( 4 nodes single DC) from > 3.10 to 3.11.2 version. > No issues reported apart from only nodetool info reporting 80% usage . > I intially had 16GB memory on each node, later i bumped up to 20GB, and > rebooted all nodes. > Waited for an week and now again i have seen memory usage more than 80% , > 16GB + . > this means some memory leaks are happening over the time. > Any one has faced such issue or do we have any workaround ? my 3.11.2 version > upgrade rollout has been halted because of this bug. > =================================================================== > ID : 65b64f5a-7fe6-4036-94c8-8da9c57718cc > Gossip active : true > Thrift active : true > Native Transport active: true > Load : 985.24 MiB > Generation No : 1526923117 > Uptime (seconds) : 1097684 > Heap Memory (MB) : 16875.64 / 20480.00 > Off Heap Memory (MB) : 20.42 > Data Center : DC7 > Rack : rac1 > Exceptions : 0 > Key Cache : entries 3569, size 421.44 KiB, capacity 100 MiB, > 7931933 hits, 8098632 requests, 0.979 recent hit rate, 14400 save period in > seconds > Row Cache : entries 0, size 0 bytes, capacity 0 bytes, 0 hits, 0 > requests, NaN recent hit rate, 0 save period in seconds > Counter Cache : entries 0, size 0 bytes, capacity 50 MiB, 0 hits, 0 > requests, NaN recent hit rate, 7200 save period in seconds > Chunk Cache : entries 2361, size 147.56 MiB, capacity 3.97 GiB, > 2412803 misses, 72594047 requests, 0.967 recent hit rate, NaN microseconds > miss latency > Percent Repaired : 99.88086234106282% > Token : (invoke with -T/--tokens to see all 256 tokens) -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org