Thanks. I think this feature could be clarified on the wiki.
2011/4/6 Dan Hendry <dan.hendry.j...@gmail.com> > There are two layers of settings, the default, cluster wide, settings part > of the schema and exposed/modifiable via the cli and individual settings > exposed/modifiable via JMX and nodetool. Using nodetool, you are only > modifying the in memory settings for a single node, changes to those > settings are not persisted or reflected in other nodes. > > > > If you want a particular setting to be persisted across a restart (and > applied to other nodes when they restart), you have to use the cli and the > ‘update column family X with min_compaction_threshold=Y and > max_compaction_threshold=X’ command. > > > > Dan > > > > *From:* Sheng Chen [mailto:chensheng2...@gmail.com] > *Sent:* April-06-11 1:42 > *To:* user@cassandra.apache.org > *Subject:* Compaction threshold does not save with nodetool > > > > Cassandra 0.7.4 > > > > # nodetool -h localhost getcompactionthreshold Keyspace1 Standard1 > > min=4 max=32 > > # nodetool -h localhost setcompactionthreshold Keyspace1 Standard1 0 0 > > # nodetool -h localhost getcompactionthreshold Keyspace1 Standard1 > > min=0 max=0 > > > > Now the thresholds have changed on the JMX pannel, but in the cassandra-cli > `show keyspaces`, it is still 4/32. > > After I restart cassandra, threshold by nodetool shows 4/32 again. The > setting is lost. > > I tried to use nodetool flush to save the change but it doesn't work. > > > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 9.0.894 / Virus Database: 271.1.1/3554 - Release Date: 04/06/11 > 02:34:00 >
