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HADOOP-8753. LocalDirAllocator throws ArithmeticException: divide by zero when there is no available space on configured local dir. Contributed by Benoy Antony.

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git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1550570 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hitesh Shah 2013-12-12 22:55:06 +00:00
parent 8a79be36bd
commit 288506022f
2 changed files with 7 additions and 0 deletions
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3
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -282,6 +282,9 @@ Trunk (Unreleased)
HADOOP-10044 Improve the javadoc of rpc code (sanjay Radia)
HADOOP-8753. LocalDirAllocator throws "ArithmeticException: / by zero" when
there is no available space on configured local dir. (Benoy Antony via hitesh)
OPTIMIZATIONS
HADOOP-7761. Improve the performance of raw comparisons. (todd)

4
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/LocalDirAllocator.java
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@ -365,6 +365,10 @@ public synchronized Path getLocalPathForWrite(String pathStr, long size,
totalAvailable += availableOnDisk[i];
}
if (totalAvailable == 0){
throw new DiskErrorException("No space available in any of the local directories.");
}
// Keep rolling the wheel till we get a valid path
Random r = new java.util.Random();
while (numDirsSearched < numDirs && returnPath == null) {