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From "Brahma Reddy Battula (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3456) blockReportInterval is long value but when we take the random value it uses getRandom().nextInt,it is causing frequently BR
Date Wed, 23 May 2012 04:48:40 GMT
Brahma Reddy Battula created HDFS-3456:
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             Summary: blockReportInterval is long value but when we take the random value
it uses getRandom().nextInt,it is causing frequently BR
                 Key: HDFS-3456
                 URL: https://issues.apache.org/jira/browse/HDFS-3456
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: data-node
    Affects Versions: 2.0.0, 2.0.1, 3.0.0
            Reporter: Brahma Reddy Battula
            Priority: Minor


blockReportInterval is long value but when we take the random value it uses getRandom().nextInt.

Due to this, offerService can throw exception as long may get rotated to negative value.
So, block report may send very frequently.
{code}
      if (resetBlockReportTime) {
        lastBlockReport = startTime - DFSUtil.getRandom().nextInt((int)(dnConf.blockReportInterval));
      resetBlockReportTime = false;
{code}

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