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From Donal Zang <zan...@ihep.ac.cn>
Subject Re: [SPAM] Re: [SPAM] Re: slow insertion rate with secondary index
Date Mon, 06 Jun 2011 12:50:45 GMT
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 
> <mailto:jbellis@gmail.com>> wrote:
>
>     On Mon, Jun 6, 2011 at 6:28 AM, Donal Zang <zangds@ihep.ac.cn
>     <mailto:zangds@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


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