For hbase internal checksum, it is not in hbase 0.92.x release. Please use 0.94.2 or newer release.
Thanks On Jan 27, 2013, at 2:29 PM, David Koch <[email protected]> wrote: > Hello, > > I read about "short circuit reads" in the HBase documentation's performance > section[1] and was wondering what people's experiences were using this in a > production setting. > > Also, > > 1. Since only one dedicated user can take advantage of the feature do you > launch all jobs as this user? > 2. Can dfs.client.read.shortcircuit be set to false for jobs wich are not > launched by the short-circuit user in order to avoid exceptions? In other > words - can this setting be overriden by the client configuration's > hbase-site.xml? > 3. In the same context, it is suggested to enable HBase internal > checksums[2]. Is this a feature which can be enabled in HBase 0.92.1 which > is part of the Cloudera 4.1.x release? > > Thank you, > > /David > > [1] http://hbase.apache.org/book/perf.hdfs.html#ftn.d2145e7370 > [2] https://issues.apache.org/jira/browse/HBASE-5074
