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[HDFS-4112] A few improvements on INodeDirectory - HDFS - [issue]
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...Below are a few improvements on INodeDirectory Add a utility method for casting from INode; avoid creating new empty list and INode arrays; renames getChildren() and getChildrenRaw(), rewrit...
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http://issues.apache.org/jira/browse/HDFS-4112
Author: Tsz Wo,
2012-12-04, 23:44
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[HDFS-4243] INodeDirectory.replaceChild(..) does not update parent - HDFS - [issue]
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...The method replaces an existing child with a new child. However, it does not take care the case the child also an INodeDirectory. In such case, the parent pointers of the childre...
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http://issues.apache.org/jira/browse/HDFS-4243
Author: Tsz Wo,
2012-12-04, 10:51
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[HDFS-3846] Namenode deadlock in branch-1 - HDFS - [issue]
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...Jitendra found out the following problem:1. Handler : Acquires namesystem lock waits on SafemodeInfo lock at SafeModeInfo.isOn()2. SafemodeMonitor : Calls SafeModeInfo.canLeave() which is sy...
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http://issues.apache.org/jira/browse/HDFS-3846
Author: Tsz Wo,
2012-12-03, 07:33
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[HDFS-4242] Map.Entry is incorrectly used in LeaseManager - HDFS - [issue]
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...As Daryn pointed out, the behavior of Map.Entry is undefined after the iteration or modifications of the map....
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http://issues.apache.org/jira/browse/HDFS-4242
Author: Tsz Wo,
2012-12-01, 12:42
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[HDFS-4125] Use a persistent data structure for snapshots - HDFS - [issue]
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...There is a well-known data structure supporting O(1) snapshot creation, O(1) access slowdown, and O(1) modification space and time.See http://www.cs.cmu.edu/~sleator/papers/Persistence.htm...
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http://issues.apache.org/jira/browse/HDFS-4125
Author: Tsz Wo,
2012-11-29, 22:56
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[HDFS-1595] DFSClient may incorrectly detect datanode failure - HDFS - [issue]
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...Suppose a source datanode S is writing to a destination datanode D in a write pipeline. We have an implicit assumption that if S catches an exception when it is writing to D, then D is...
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http://issues.apache.org/jira/browse/HDFS-1595
Author: Tsz Wo,
2012-11-28, 01:27
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[HDFS-4204] TestNNThroughputBenchmark fails in branch-1 - HDFS - [issue]
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...java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(String.java:686) at org.apache.hadoop.net.NetUtils.norm...
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http://issues.apache.org/jira/browse/HDFS-4204
Author: Tsz Wo,
2012-11-26, 19:50
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[HDFS-4216] Adding symlink should not ignore QuotaExceededException - HDFS - [issue]
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...FSDirectory.unprotectedSymlink(..) catches IOException and ignores it. As a consequence it ignores QuotaExceededException....
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http://issues.apache.org/jira/browse/HDFS-4216
Author: Tsz Wo,
2012-11-22, 13:23
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[HDFS-3960] Snapshot of Being Written Files - HDFS - [issue]
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...Here is a design question: Suppose there is a being written file when a snapshot is being taken. What should the length of the file be shown in the snapshot? In other words, how ...
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http://issues.apache.org/jira/browse/HDFS-3960
Author: Tsz Wo,
2012-11-21, 02:24
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[HDFS-4188] Add a snapshot id comparator - HDFS - [issue]
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...The Snapshot class currently has two compareTo methods. The one for comparing IDs is not implementing the Comparable interface since Java does not allow implementing the same interface twice...
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http://issues.apache.org/jira/browse/HDFS-4188
Author: Tsz Wo,
2012-11-16, 13:23
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