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https://issues.apache.org/jira/browse/HADOOP-8436?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283188#comment-13283188
]
Brahma Reddy Battula commented on HADOOP-8436:
----------------------------------------------
{code}
String newLocalDirs = conf.get(contextCfgItemName);
if (!newLocalDirs.equals(savedLocalDirs)) {
int minDiskFreeThresholdMb =
conf.getInt("hadoop.min.local.disk.freespace.threshold", 1024);
{code}
Here newLocalDirs will become null and it'll throw NPE..
I did fix like this..
{code}
String newLocalDirs = conf.get(contextCfgItemName);
if (null == newLocalDirs) {
throw new IOException("dfs.client.buffer.dir
not configured");
}
if (!newLocalDirs.equals(savedLocalDirs) ) {
localDirs = StringUtils.getTrimmedStrings(newLocalDirs);
{code}
> NPE In getLocalPathForWrite ( path, conf ) when dfs.client.buffer.dir not
> configured
> ------------------------------------------------------------------------------------
>
> Key: HADOOP-8436
> URL: https://issues.apache.org/jira/browse/HADOOP-8436
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Brahma Reddy Battula
>
> Call dirAllocator.getLocalPathForWrite ( path , conf );
> without configuring "dfs.client.buffer.dir"..
> {noformat}
> java.lang.NullPointerException
> at
> org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.confChanged(LocalDirAllocator.java:261)
> at
> org.apache.hadoop.fs.LocalDirAllocator$AllocatorPerContext.getLocalPathForWrite(LocalDirAllocator.java:365)
> at
> org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:134)
> at
> org.apache.hadoop.fs.LocalDirAllocator.getLocalPathForWrite(LocalDirAllocator.java:113)
> {noformat}
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