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Anoop Sam John commented on HBASE-21946: ---------------------------------------- pom changes ok? {code} return preadWithoutHeapBuffer(buff, dis, position, necessaryLen, extraLen); 212 } catch (UnsupportedOperationException e) { {code} Can there be a way with out catch Exception and then go with old way of read. Like isBBSupported kind API or so available? > Replace the byte[] pread by ByteBuffer pread in HFileBlock reading once > HDFS-3246 prepared > ------------------------------------------------------------------------------------------ > > Key: HBASE-21946 > URL: https://issues.apache.org/jira/browse/HBASE-21946 > Project: HBase > Issue Type: Sub-task > Reporter: Zheng Hu > Assignee: Zheng Hu > Priority: Major > Attachments: HBASE-21946.HBASE-21879.v01.patch, > HBASE-21946.HBASE-21879.v02.patch, HBASE-21946.HBASE-21879.v03.patch, > HBASE-21946.HBASE-21879.v04.patch > > > [~stakiar] is working on HDFS-3246, so now we have to keep the byte[] pread > in HFileBlock reading. Once it get resolved, we can upgrade the hadoop > version and do the replacement. > I think it will be a great p999 latency improvement in 100% Get case, anyway > file a issue address this firstly. -- This message was sent by Atlassian JIRA (v7.6.3#76005)