[jira] Commented: (HBASE-1495) IllegalArgumentException in halfhfilereader#next

["stack (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-1495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12717461#action_12717461 ] 

stack commented on HBASE-1495:
------------------------------

Here are some numbers from posix4e:

{code}
2009-06-08 15:46:59,325 WARN org.apache.hadoop.hbase.io.hfile.HFile: block.position(): 65648
2009-06-08 15:46:59,325 WARN org.apache.hadoop.hbase.io.hfile.HFile: currKeyLen: 37
2009-06-08 15:46:59,325 WARN org.apache.hadoop.hbase.io.hfile.HFile: currValueLen: 95
{code}

Here is code:

{code}
      public boolean next() throws IOException {
        // LOG.deug("rem:" + block.remaining() + " p:" + block.position() +
        // " kl: " + currKeyLen + " kv: " + currValueLen);
        if (block == null) {
          throw new IOException("Next called on non-seeked scanner");
        }
        block.position(block.position() + currKeyLen + currValueLen);
{code}

Here is the Buffer position code:

{code}
    public final Buffer position(int newPosition) {
    if ((newPosition > limit) || (newPosition < 0))
        throw new IllegalArgumentException();
{code}

> IllegalArgumentException in halfhfilereader#next
> ------------------------------------------------
>
>                 Key: HBASE-1495
>                 URL: https://issues.apache.org/jira/browse/HBASE-1495
>             Project: Hadoop HBase
>          Issue Type: Bug
>            Reporter: stack
>             Fix For: 0.20.0
>
>
> From posix4e up on IRC
> {code}
> #
> 2009-06-07 20:22:33,367 ERROR org.apache.hadoop.hbase.regionserver.CompactSplitThread: Compaction failed for region t3,*******************,1244420117045
> #
> java.lang.IllegalArgumentException
> #
>         at java.nio.Buffer.position(Buffer.java:218)
> #
>         at org.apache.hadoop.hbase.io.hfile.HFile$Reader$Scanner.next(HFile.java:1072)
> #
>         at org.apache.hadoop.hbase.io.HalfHFileReader$1.next(HalfHFileReader.java:108)
> #
>         at org.apache.hadoop.hbase.regionserver.StoreFileScanner.next(StoreFileScanner.java:52)
> #
>         at org.apache.hadoop.hbase.regionserver.KeyValueHeap.next(KeyValueHeap.java:79)
> #
>         at org.apache.hadoop.hbase.regionserver.MinorCompactingStoreScanner.next(MinorCompactingSto
> #
> reScanner.java:101)
> #
>         at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:849)
> #
>         at org.apache.hadoop.hbase.regionserver.Store.compact(Store.java:714)
> #
>         at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:766)
> #
>         at org.apache.hadoop.hbase.regionserver.HRegion.compactStores(HRegion.java:723)
> #
>         at org.apache.hadoop.hbase.regionserver.CompactSplitThread.run(CompactSplitThread.java:105)
> {code}

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