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From "ramkrishna.s.vasudevan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14117) Check DBEs where fields are being read from Bytebuffers but unused.
Date Fri, 17 Jul 2015 13:10:15 GMT
ramkrishna.s.vasudevan created HBASE-14117:
----------------------------------------------

             Summary: Check DBEs where fields are being read from Bytebuffers but unused.
                 Key: HBASE-14117
                 URL: https://issues.apache.org/jira/browse/HBASE-14117
             Project: HBase
          Issue Type: Improvement
            Reporter: ramkrishna.s.vasudevan


{code}
public Cell getFirstKeyCellInBlock(ByteBuff block) {
    block.mark();
    block.position(Bytes.SIZEOF_INT);
    int keyLength = ByteBuff.readCompressedInt(block);
    // TODO : See if we can avoid these reads as the read values are not getting used
    ByteBuff.readCompressedInt(block);
{code}
In DBEs many a places we read the integers just to skip them. This JIRA is to see if we can
avoid this and rather go position based, as per a review comment in HBASE-12213.



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