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Posted to issues@tez.apache.org by "Xi Chen (Jira)" <ji...@apache.org> on 2021/04/08 07:05:00 UTC

[jira] [Created] (TEZ-4302) NullPointerException in CodecUtils when bufferSizeProp is null

Xi Chen created TEZ-4302:
----------------------------

             Summary: NullPointerException in CodecUtils when bufferSizeProp is null
                 Key: TEZ-4302
                 URL: https://issues.apache.org/jira/browse/TEZ-4302
             Project: Apache Tez
          Issue Type: Bug
    Affects Versions: 0.10.0
            Reporter: Xi Chen


When bufferSizeProp is null, CodecUtils.getDecompressedInputStreamWithBufferSize runs into NullPointerException:
{code:java}
// code placeholder
java.io.IOException: java.lang.NullPointerException    at org.apache.tez.runtime.library.common.shuffle.ShuffleUtils.shuffleToMemory(ShuffleUtils.java:142)    at org.apache.tez.runtime.library.common.shuffle.orderedgrouped.FetcherOrderedGrouped.copyMapOutput(FetcherOrderedGrouped.java:550)    at org.apache.tez.runtime.library.common.shuffle.orderedgrouped.FetcherOrderedGrouped.copyFromHost(FetcherOrderedGrouped.java:283)    at org.apache.tez.runtime.library.common.shuffle.orderedgrouped.FetcherOrderedGrouped.fetchNext(FetcherOrderedGrouped.java:182)    at org.apache.tez.runtime.library.common.shuffle.orderedgrouped.FetcherOrderedGrouped.callInternal(FetcherOrderedGrouped.java:194)    at org.apache.tez.runtime.library.common.shuffle.orderedgrouped.FetcherOrderedGrouped.callInternal(FetcherOrderedGrouped.java:57)    at org.apache.tez.common.CallableWithNdc.call(CallableWithNdc.java:36)    at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)    at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69)    at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)    at java.lang.Thread.run(Thread.java:748)Caused by: java.lang.NullPointerException    at java.util.Hashtable.get(Hashtable.java:363)    at java.util.Properties.getProperty(Properties.java:969)    at org.apache.hadoop.conf.Configuration.get(Configuration.java:1200)    at org.apache.hadoop.conf.Configuration.getTrimmed(Configuration.java:1254)    at org.apache.hadoop.conf.Configuration.getInt(Configuration.java:1479)    at org.apache.tez.runtime.library.utils.CodecUtils.getDecompressedInputStreamWithBufferSize(CodecUtils.java:81)    at org.apache.tez.runtime.library.common.sort.impl.IFile$Reader.readToMemory(IFile.java:824)    at org.apache.tez.runtime.library.common.shuffle.ShuffleUtils.shuffleToMemory(ShuffleUtils.java:121)    ... 12 more
{code}
Configuration.getInt(String name, int defaultValue) assumes the  name is not null.



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