You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-issues@hadoop.apache.org by "Mingliang Liu (JIRA)" <ji...@apache.org> on 2016/06/17 22:12:05 UTC
[jira] [Updated] (HADOOP-13288) Guard null stats key in
FileSystemStorageStatistics
[ https://issues.apache.org/jira/browse/HADOOP-13288?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mingliang Liu updated HADOOP-13288:
-----------------------------------
Fix Version/s: (was: 2.8.0)
> Guard null stats key in FileSystemStorageStatistics
> ---------------------------------------------------
>
> Key: HADOOP-13288
> URL: https://issues.apache.org/jira/browse/HADOOP-13288
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs
> Affects Versions: 2.8.0, 3.0.0-alpha1
> Reporter: Mingliang Liu
> Assignee: Mingliang Liu
>
> Currently in {{FileSystemStorageStatistics}} we simply returns data from {{FileSystem#Statistics}}. However there is no null key check, which leads to NPE problems to downstream applications. For example, we got a NPE when passing a null key to {{FileSystemStorageStatistics#getLong()}}, exception stack as following:
> {quote}
> NullPointerException
> at org.apache.hadoop.fs.FileSystemStorageStatistics.fetch(FileSystemStorageStatistics.java:80)
> at org.apache.hadoop.fs.FileSystemStorageStatistics.getLong(FileSystemStorageStatistics.java:108)
> at org.apache.tez.runtime.metrics.FileSystemStatisticsUpdater2.updateCounters(FileSystemStatisticsUpdater2.java:60)
> at org.apache.tez.runtime.metrics.TaskCounterUpdater.updateCounters(TaskCounterUpdater.java:118)
> at org.apache.tez.runtime.RuntimeTask.setFrameworkCounters(RuntimeTask.java:172)
> at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:100)
> at org.apache.tez.runtime.task.TaskRunner2Callable.callInternal(TaskRunner2Callable.java:37)
> at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)
> at java.util.concurrent.FutureTask.run(FutureTask.java:262)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> {quote}
> This jira is to add null stat key check to {{FileSystemStorageStatistics}}.
> Thanks [~hitesh] for trying in Tez and reporting this.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-issues-help@hadoop.apache.org