hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Liyin Liang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1572) Checkpointer should trigger checkpoint with specified period.
Date Thu, 06 Jan 2011 12:56:46 GMT
Checkpointer should trigger checkpoint with specified period.
-------------------------------------------------------------

                 Key: HDFS-1572
                 URL: https://issues.apache.org/jira/browse/HDFS-1572
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Liyin Liang
            Priority: Blocker


{code:}
  long now = now();
  boolean shouldCheckpoint = false;
  if(now >= lastCheckpointTime + periodMSec) {
    shouldCheckpoint = true;
  } else {
    long size = getJournalSize();
    if(size >= checkpointSize)
      shouldCheckpoint = true;
  }
{code}
{dfs.namenode.checkpoint.period} in configuration determines the period of checkpoint. However,
with above code, the Checkpointer triggers a checkpoint every 5 minutes (periodMSec=5*60*1000).
According to SecondaryNameNode.java, the first *if*  statement should be:
 {code:}
if(now >= lastCheckpointTime + 1000 * checkpointPeriod) {
 {code}


-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message