cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From 曹志富 <cao.zh...@gmail.com>
Subject Re: How to deal with too many sstables
Date Tue, 03 Feb 2015 06:22:21 GMT
You are right.I have already change cold_reads_to_omit to 0.0.

--------------------------------------
曹志富
手机:18611121927
邮箱:caozf.zhifu@gmail.com
微博:http://weibo.com/boliza/

2015-02-03 14:15 GMT+08:00 Roland Etzenhammer <r.etzenhammer@t-online.de>:

>  Hi,
>
> maybe you are running into an issue that I also had on my test cluster.
> Since there were almost no reads on it cassandra did not run any minor
> compactions at all. Solution for me (in this case) was:
>
> ALTER TABLE <tablename> WITH compaction = {'class':
> 'SizeTieredCompactionStrategy', 'min_threshold': '4', 'max_threshold':
> '32', 'cold_reads_to_omit': 0.0};
> where cold_reads_to_omit is the "trick".
>
> Anyway as Eric and Marcus among others suggest, do not run 2.1.2 for
> production as it has many issues. I'm looking forward to test 2.1.3 when it
> arrives.
>
> Cheers,
> Roland
>
>
> Am 03.02.2015 um 03:05 schrieb 曹志富:
>
>  Hi,all:
> I have 18 nodes C* cluster with cassandra2.1.2.Some nodes have aboud
> 40,000+ sstables.
>
>  my compaction strategy is STCS.
>
>  Could someone give me some solution to deal with this situation.
>
>  Thanks.
>  --------------------------------------
> 曹志富
> 手机:18611121927
> 邮箱:caozf.zhifu@gmail.com
> 微博:http://weibo.com/boliza/
>
>
>

Mime
View raw message