[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2017-09-28 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Description: 
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.

Thanks to [~cmccabe] for discussion.

  was:
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:

{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.

Thanks to [~cmccabe] for discussion.


> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>Priority: Minor
>  Labels: stream
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-10-25 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Labels: stream  (was: )

> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>Priority: Minor
>  Labels: stream
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-10-25 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Priority: Minor  (was: Major)

> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>Priority: Minor
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-05-25 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Description: 
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:

{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.

Thanks to [~cmccabe] for discussion.

  was:
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.

Thanks to [~cmccabe] for discussion.


> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-03-13 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Description: 
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.

Thanks to [~cmccabe] for discussion.

  was:
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.


Thanks to [~cmccabe] for discussion.


> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-02-02 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Description: 
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

This would benefit hbase unit tests.


Thanks to [~cmccabe] for discussion.

  was:
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.


Thanks to [~cmccabe] for discussion.


> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> This would benefit hbase unit tests.
> Thanks to [~cmccabe] for discussion.



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[jira] [Updated] (HADOOP-12724) Let BufferedFSInputStream implement CanUnbuffer

2016-01-26 Thread Ted Yu (JIRA) 

 [ 
https://issues.apache.org/jira/browse/HADOOP-12724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HADOOP-12724:

Description: 
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.


Thanks to [~cmccabe] for discussion.

  was:
When trying to determine reason for test failure over in HBASE-9393, I saw the 
following exception:
{code}
testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 0.033 
sec  <<< ERROR!
java.lang.UnsupportedOperationException: this stream does not support 
unbuffering.
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
at 
org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
at 
org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
at 
org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
{code}
Here is the cause:
{code}
java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream cannot 
be cast to org.apache.hadoop.fs.CanUnbuffer
{code}
See the comments starting with 
https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
 for background on the HBase patch.

This issue is to make BufferedFSInputStream implement CanUnbuffer.

Thanks to [~cmccabe] for discussion.


> Let BufferedFSInputStream implement CanUnbuffer
> ---
>
> Key: HADOOP-12724
> URL: https://issues.apache.org/jira/browse/HADOOP-12724
> Project: Hadoop Common
>  Issue Type: Improvement
>Reporter: Ted Yu
>
> When trying to determine reason for test failure over in HBASE-9393, I saw 
> the following exception:
> {code}
> testSeekTo[4](org.apache.hadoop.hbase.io.hfile.TestSeekTo)  Time elapsed: 
> 0.033 sec  <<< ERROR!
> java.lang.UnsupportedOperationException: this stream does not support 
> unbuffering.
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:229)
>   at 
> org.apache.hadoop.fs.FSDataInputStream.unbuffer(FSDataInputStream.java:227)
>   at 
> org.apache.hadoop.hbase.io.hfile.HFile.pickReaderVersion(HFile.java:518)
>   at org.apache.hadoop.hbase.io.hfile.HFile.createReader(HFile.java:562)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekToInternals(TestSeekTo.java:307)
>   at 
> org.apache.hadoop.hbase.io.hfile.TestSeekTo.testSeekTo(TestSeekTo.java:298)
> {code}
> Here is the cause:
> {code}
> java.lang.ClassCastException: org.apache.hadoop.fs.BufferedFSInputStream 
> cannot be cast to org.apache.hadoop.fs.CanUnbuffer
> {code}
> See the comments starting with 
> https://issues.apache.org/jira/browse/HBASE-9393?focusedCommentId=15105939=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15105939
>  for background on the HBase patch.
> This issue is to make BufferedFSInputStream implement CanUnbuffer.
> Thanks to [~cmccabe] for discussion.



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