No,to confirm this I have run the command all my nodes:bin/nodetool enableautocompaction
-------------------------------------- 曹志富 手机：18611121927 邮箱：caozf.zh...@gmail.com 微博：http://weibo.com/boliza/ 2015-01-26 16:49 GMT+08:00 Jason Wee <peich...@gmail.com>: > Did you disable auto compaction through nodetool? > > disableautocompaction Disable autocompaction for the given keyspace > and column family > > Jason > > On Mon, Jan 26, 2015 at 11:34 AM, 曹志富 <cao.zh...@gmail.com> wrote: > >> Hi everybody: >> >> I have 18 nodes using cassandra2.1.2.Every node has 4 core, 32 GB RAM, 2T >> hard disk,OS is CentOS release 6.2 (Final). >> >> I have follow the <Recommended production settings> to config my >> system.such as disable SWAP,unlimited mem lock... >> >> My heap size is: >> >> MAX_HEAP_SIZE="8G" >> MIN_HEAP_SIZE="8G" >> HEAP_NEWSIZE="2G" >> >> I use STCS,other config using default,using Datastax Java Driver 2.1.2. >> BatchStatment 100key commit per time. >> >> When I run my cluster and insert data from kafka (10000 keys/s) after 2 >> days,every node can't compact some there too many sstables. >> >> I try to use major compact to compact the sstables , it cost a long long >> time .Also the new sstables can't compat automatic. >> >> >> I trace the log , the CMS GC too often,almost 30 minute onetime. >> >> Could someone help me to solve this problem. >> >> >> -------------------------------------- >> 曹志富 >> 手机：18611121927 >> 邮箱：caozf.zh...@gmail.com >> 微博：http://weibo.com/boliza/ >> > >
