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Posted to user@cassandra.apache.org by Donal Zang <za...@ihep.ac.cn> on 2011/06/06 14:50:45 UTC
Re: [SPAM] Re: [SPAM] Re: slow insertion rate with secondary index
On 06/06/2011 14:29, David Boxenhorn wrote:
> Jonathan, are Donal Zang's results (10x slowdown) typical?
>
> On Mon, Jun 6, 2011 at 3:14 PM, Jonathan Ellis <jbellis@gmail.com
> <ma...@gmail.com>> wrote:
>
> On Mon, Jun 6, 2011 at 6:28 AM, Donal Zang <zangds@ihep.ac.cn
> <ma...@ihep.ac.cn>> wrote:
> > Another thing I noticed is : if you first do insertion, and then
> build the
> > secondary index use "update column family ...", and then do
> select based on
> > the index, the result is not right (seems the index is still
> being built
> > though the "update" commands returns quickly).
>
> That is correct. "describe keyspace" from the cli tells you when an
> index has finished building.
>
> --
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of DataStax, the source for professional Cassandra support
> http://www.datastax.com
>
>
seems similar to this https://issues.apache.org/jira/browse/CASSANDRA-2470
--
Donal Zang
Computing Center, IHEP
19B YuquanLu, Shijingshan District,Beijing, 100049
zangds@ihep.ac.cn
86 010 8823 6018