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From Jason Wee <peich...@gmail.com>
Subject Re: SStables can't compat automaticly
Date Mon, 26 Jan 2015 08:49:32 GMT
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.zhifu@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.zhifu@gmail.com
> 微博:http://weibo.com/boliza/
>

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