Hey Joseph, I suspect you're hitting hotspotting (see http://hbase.apache.org/book.html#rowkey.design). Moving forward, you might want to consider something like OpenTSDB for your time series data.
-Dima On Mon, Feb 2, 2015 at 1:18 AM, joseph <[email protected]> wrote: > Hi, > > > > We are using HBase 0.94 and Hadoop 2.0.0 .We are using CDH 4.7 > > > > We have a 4 node cluster with one master and the 3 region servers > > > > We Have time series data. We have row key with the format of > Reversetimestamp_id. We have client connection timeout in the modules and > constantly facing compaction queue size alert in the Cloudera manager. We > disable compaction by changing the settings in the Cloudera HBase > configuration .Then we are compact tables manually using the cron > scheduler. > But still compaction are triggering and the Cloudera manager always shows > compaction queue size alert .Modules still facing timeout with the HBase > > > > > > Regards, > > Joseph > > > >
