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Posted to issues@hbase.apache.org by "Himanshu Vashishtha (JIRA)" <ji...@apache.org> on 2012/11/08 01:22:11 UTC
[jira] [Created] (HBASE-7122) Proper warning message when opening a
log file with no entries (idle cluster)
Himanshu Vashishtha created HBASE-7122:
------------------------------------------
Summary: Proper warning message when opening a log file with no entries (idle cluster)
Key: HBASE-7122
URL: https://issues.apache.org/jira/browse/HBASE-7122
Project: HBase
Issue Type: Bug
Components: Replication
Affects Versions: 0.94.2
Reporter: Himanshu Vashishtha
Assignee: Himanshu Vashishtha
Fix For: 0.96.0
In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until the an entry is inserted in it.
{code}
2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
{code}
We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Updated] (HBASE-7122) Proper warning message when opening a
log file with no entries (idle cluster)
Posted by "Himanshu Vashishtha (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Himanshu Vashishtha updated HBASE-7122:
---------------------------------------
Description:
In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
{code}
2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
{code}
We should reduce the log spewing in this case (or some informative message, based on the offset).
was:
In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until the an entry is inserted in it.
{code}
2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
java.io.EOFException
at java.io.DataInputStream.readFully(DataInputStream.java:180)
at java.io.DataInputStream.readFully(DataInputStream.java:152)
at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
{code}
We should reduce the log spewing in this case (or some informative message, based on the offset).
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Updated] (HBASE-7122) Proper warning message when opening a
log file with no entries (idle cluster)
Posted by "Himanshu Vashishtha (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Himanshu Vashishtha updated HBASE-7122:
---------------------------------------
Status: Patch Available (was: Open)
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
> Attachments: HBase-7122.patch
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Commented] (HBASE-7122) Proper warning message when opening
a log file with no entries (idle cluster)
Posted by "Jean-Daniel Cryans (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13492888#comment-13492888 ]
Jean-Daniel Cryans commented on HBASE-7122:
-------------------------------------------
We could fold this in HBASE-6804.
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Bug
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Commented] (HBASE-7122) Proper warning message when opening
a log file with no entries (idle cluster)
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13493645#comment-13493645 ]
Hadoop QA commented on HBASE-7122:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12552737/HBase-7122.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include any new or modified tests.
Please justify why no new tests are needed for this patch.
Also please list what manual steps were performed to verify this patch.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/3279//console
This message is automatically generated.
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
> Attachments: HBase-7122.patch
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Updated] (HBASE-7122) Proper warning message when opening a
log file with no entries (idle cluster)
Posted by "Himanshu Vashishtha (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Himanshu Vashishtha updated HBASE-7122:
---------------------------------------
Issue Type: Sub-task (was: Bug)
Parent: HBASE-6804
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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[jira] [Updated] (HBASE-7122) Proper warning message when opening a
log file with no entries (idle cluster)
Posted by "Himanshu Vashishtha (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-7122?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Himanshu Vashishtha updated HBASE-7122:
---------------------------------------
Attachment: HBase-7122.patch
Tested it on a cluster; it stops emitting exception and other behavior remains the same.
> Proper warning message when opening a log file with no entries (idle cluster)
> -----------------------------------------------------------------------------
>
> Key: HBASE-7122
> URL: https://issues.apache.org/jira/browse/HBASE-7122
> Project: HBase
> Issue Type: Sub-task
> Components: Replication
> Affects Versions: 0.94.2
> Reporter: Himanshu Vashishtha
> Assignee: Himanshu Vashishtha
> Fix For: 0.96.0
>
> Attachments: HBase-7122.patch
>
>
> In case the cluster is idle and the log has rolled (offset to 0), replicationSource tries to open the log and gets an EOF exception. This gets printed after every 10 sec until an entry is inserted in it.
> {code}
> 2012-11-07 15:47:40,924 DEBUG regionserver.ReplicationSource (ReplicationSource.java:openReader(487)) - Opening log for replication c0315.hal.cloudera.com%2C40020%2C1352324202860.1352327804874 at 0
> 2012-11-07 15:47:40,926 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(543)) - 1 Got:
> java.io.EOFException
> at java.io.DataInputStream.readFully(DataInputStream.java:180)
> at java.io.DataInputStream.readFully(DataInputStream.java:152)
> at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1508)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1486)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1475)
> at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1470)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader$WALReader.<init>(SequenceFileLogReader.java:55)
> at org.apache.hadoop.hbase.regionserver.wal.SequenceFileLogReader.init(SequenceFileLogReader.java:175)
> at org.apache.hadoop.hbase.regionserver.wal.HLog.getReader(HLog.java:716)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.openReader(ReplicationSource.java:491)
> at org.apache.hadoop.hbase.replication.regionserver.ReplicationSource.run(ReplicationSource.java:290)
> 2012-11-07 15:47:40,927 WARN regionserver.ReplicationSource (ReplicationSource.java:openReader(547)) - Waited too long for this file, considering dumping
> 2012-11-07 15:47:40,927 DEBUG regionserver.ReplicationSource (ReplicationSource.java:sleepForRetries(562)) - Unable to open a reader, sleeping 1000 times 10
> {code}
> We should reduce the log spewing in this case (or some informative message, based on the offset).
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