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[HDFS-4697] short-circuit reads do not honor readahead settings - HDFS - [issue]
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...Neither the new nor the legacy short-circuit read implementations honor dfs.datanode.readahead.bytes. This can result in scenarios where non-short-circuit reads are faster for long rea...
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http://issues.apache.org/jira/browse/HDFS-4697
Author: Colin Patrick McCabe,
2013-04-24, 20:08
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[HDFS-4401] Fix bug in DomainSocket path validation - HDFS - [issue]
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...DomainSocket path validation currently does not validate the second-to-last path component. This leads to insecure socket paths being accepted. It should validate all path compon...
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http://issues.apache.org/jira/browse/HDFS-4401
Author: Colin Patrick McCabe,
2013-04-18, 23:04
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[HDFS-4538] allow use of legacy blockreader - HDFS - [issue]
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...Some users might want to use the legacy block reader, because it is available on Windows, whereas the secure solution has not yet been implemented there. As described in the mailing li...
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http://issues.apache.org/jira/browse/HDFS-4538
Author: Colin Patrick McCabe,
2013-04-02, 22:34
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[HDFS-4640] JniBasedUnixGroupsMapping: fix some crash bugs - HDFS - [issue]
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...JniBasedUnixGroupsMapping has some issues. sometimes on error paths variables are freed prior to being initialized re-allocate buffers less frequently (can reuse the same buffer for multiple...
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http://issues.apache.org/jira/browse/HDFS-4640
Author: Colin Patrick McCabe,
2013-03-27, 02:08
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[HDFS-3488] BlockPoolSliceScanner#getNewBlockScanTime does not handle numbers > 31 bits properly - HDFS - [issue]
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...This code does not handle the case where period > 2**31 properly: long period = Math.min(scanPeriod, ...
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http://issues.apache.org/jira/browse/HDFS-3488
Author: Colin Patrick McCabe,
2013-03-19, 19:36
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[HDFS-4521] invalid network toploogies should not be cached - HDFS - [issue]
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...When the network topology is invalid, the DataNode refuses to start with a message such as this:org.apache.hadoop.hdfs.server.protocol.DatanodeProtocol.registerDatanode from 172.29.122.23:55...
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http://issues.apache.org/jira/browse/HDFS-4521
Author: Colin Patrick McCabe,
2013-03-19, 13:15
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[HDFS-3277] fail over to loading a different FSImage if the first one we try to load is corrupt - HDFS - [issue]
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...Most users store multiple copies of the FSImage in order to prevent catastrophic data loss if a hard disk fails. However, our image loading code is currently not set up to start readin...
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http://issues.apache.org/jira/browse/HDFS-3277
Author: Colin Patrick McCabe,
2013-03-15, 13:20
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[HDFS-4522] LightWeightGSet expects incrementing a volatile to be atomic - HDFS - [issue]
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...LightWeightGSet uses a volatile integer to track the current modification number (kind of an epoch number).Unfortunately, it includes code like this, that increments this volatile int: ...
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http://issues.apache.org/jira/browse/HDFS-4522
Author: Colin Patrick McCabe,
2013-03-13, 14:06
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[HDFS-4484] libwebhdfs compilation broken with gcc 4.6.2 - HDFS - [issue]
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...libwebhdfs doesn't compile with gcc 4.6.2./home/cmccabe/hadoop1/hadoop-hdfs-project/hadoop-hdfs/src/contrib/libwebhdfs/src/test_libwebhdfs_ops.c: In function ‘main’:/home/cmccabe/hadoop1/had...
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http://issues.apache.org/jira/browse/HDFS-4484
Author: Colin Patrick McCabe,
2013-03-13, 14:06
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[HDFS-3947] If there are multiple edit logs with the same fstime, Recovery Mode should load a different one than the normal loading process - HDFS - [issue]
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...If there are multiple edit logs with the same fstime, Recovery Mode should load a different one than the normal loading process. This will protect against many common kinds of corrupti...
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http://issues.apache.org/jira/browse/HDFS-3947
Author: Colin Patrick McCabe,
2013-03-11, 18:36
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