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From "Koji Noguchi (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-3635) Uncaught exception in DataBlockScanner
Date Wed, 25 Jun 2008 00:03:46 GMT
Uncaught exception in DataBlockScanner
--------------------------------------

                 Key: HADOOP-3635
                 URL: https://issues.apache.org/jira/browse/HADOOP-3635
             Project: Hadoop Core
          Issue Type: Bug
          Components: dfs
    Affects Versions: 0.17.0
            Reporter: Koji Noguchi


I see bunch of datanodes stop verifying local blocks.

".out" showed 
{noformat}
-rw-r--r--  1 hdfs users 614 Jun 23 10:24 datanode.out

Exception in thread "org.apache.hadoop.dfs.DataBlockScanner@aadc97" java.lang.NumberFormatException:
For input string: "121195228080date="
        at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
        at java.lang.Long.parseLong(Long.java:412)
        at java.lang.Long.valueOf(Long.java:518)
        at org.apache.hadoop.dfs.DataBlockScanner$LogEntry.parseEntry(DataBlockScanner.java:351)
        at org.apache.hadoop.dfs.DataBlockScanner.assignInitialVerificationTimes(DataBlockScanner.java:481)
        at org.apache.hadoop.dfs.DataBlockScanner.run(DataBlockScanner.java:534)
        at java.lang.Thread.run(Thread.java:619)
{noformat}

Namenode log also showed 
{noformat}
2008-06-23 10:24:12,831 WARN org.apache.hadoop.dfs.DataBlockScanner: RuntimeException during
DataBlockScanner.run() : java.lang.NumberFormatException: For input string: "121195228080date="
        at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
        at java.lang.Long.parseLong(Long.java:412)
        at java.lang.Long.valueOf(Long.java:518)
        at org.apache.hadoop.dfs.DataBlockScanner$LogEntry.parseEntry(DataBlockScanner.java:351)
        at org.apache.hadoop.dfs.DataBlockScanner.assignInitialVerificationTimes(DataBlockScanner.java:481)
        at org.apache.hadoop.dfs.DataBlockScanner.run(DataBlockScanner.java:534)
        at java.lang.Thread.run(Thread.java:619)
{noformat}

Datanode was still up and running but no verification.
Jstack didn't show DataBlockScanner.


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