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https://issues.apache.org/jira/browse/HDFS-10555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15343114#comment-15343114
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Uma Maheswara Rao G edited comment on HDFS-10555 at 6/22/16 12:44 AM:
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{noformat}
testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/name-0-1/current/edits_0000000000000000001-0000000000000000094;
failing over to edit log
/testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/name-0-2/current/edits_0000000000000000001-0000000000000000094
java.io.IOException: Unknown flag in CachePoolInfo: 63
at
org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.readCachePoolInfo(FSImageSerialization.java:687)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$AddCachePoolOp.readFields(FSEditLogOp.java:3974)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$LengthPrefixedReader.decodeOp(FSEditLogOp.java:4747)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$Reader.readOp(FSEditLogOp.java:4607)
at
org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.nextOpImpl(EditLogFileInputStream.java:202)
at
org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.nextOp(EditLogFileInputStream.java:249)
at
org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
at
org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream.nextOp(RedundantEditLogInputStream.java:189)
at
org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:196)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:149)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:837)
{noformat}
was (Author: umamaheswararao):
{noformat}
testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/name-0-1/current/edits_0000000000000000001-0000000000000000094;
failing over to edit log
/testptch/hadoop/hadoop-hdfs-project/hadoop-hdfs/target/test/data/1/dfs/name-0-2/current/edits_0000000000000000001-0000000000000000094
java.io.IOException: Unknown flag in CachePoolInfo: 63
at
org.apache.hadoop.hdfs.server.namenode.FSImageSerialization.readCachePoolInfo(FSImageSerialization.java:687)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$AddCachePoolOp.readFields(FSEditLogOp.java:3974)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$LengthPrefixedReader.decodeOp(FSEditLogOp.java:4747)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogOp$Reader.readOp(FSEditLogOp.java:4607)
at
org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.nextOpImpl(EditLogFileInputStream.java:202)
at
org.apache.hadoop.hdfs.server.namenode.EditLogFileInputStream.nextOp(EditLogFileInputStream.java:249)
at
org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
at
org.apache.hadoop.hdfs.server.namenode.RedundantEditLogInputStream.nextOp(RedundantEditLogInputStream.java:189)
at
org.apache.hadoop.hdfs.server.namenode.EditLogInputStream.readOp(EditLogInputStream.java:85)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadEditRecords(FSEditLogLoader.java:196)
at
org.apache.hadoop.hdfs.server.namenode.FSEditLogLoader.loadFSEdits(FSEditLogLoader.java:149)
at
org.apache.hadoop.hdfs.server.namenode.FSImage.loadEdits(FSImage.java:837)
{nofromat}
> Unable to loadFSEdits due to a failure in readCachePoolInfo
> -----------------------------------------------------------
>
> Key: HDFS-10555
> URL: https://issues.apache.org/jira/browse/HDFS-10555
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Uma Maheswara Rao G
> Assignee: Uma Maheswara Rao G
> Priority: Critical
>
> Recently some tests are failing and unable to loadFSEdits due to a failure in
> readCachePoolInfo.
> Here in below code
> FSImageSerialization.java
> {code}
> }
> if ((flags & ~0x2F) != 0) {
> throw new IOException("Unknown flag in CachePoolInfo: " + flags);
> }
> {code}
> When all values of CachePool variable set to true, flags value & ~0x2F turns
> out to non zero value. So, this condition failing due to the addition of 0x20
> and changing &ing value from ~0x1F to ~0x2F.
> May be to fix this issue, we may can change multiply value to ~0x3F
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