[ 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&page=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&page=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&page=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. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org