[ 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-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org