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From "Gopal V (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HADOOP-14054) NativeAzureFileSystem has multiple synchronized BufferedStream:read() calls in it
Date Fri, 03 Feb 2017 20:34:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14054?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Gopal V resolved HADOOP-14054.
------------------------------
    Resolution: Won't Fix

Closing as WONTFIX - will file issues on Azure github

> NativeAzureFileSystem has multiple synchronized BufferedStream:read() calls in it
> ---------------------------------------------------------------------------------
>
>                 Key: HADOOP-14054
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14054
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>            Reporter: Gopal V
>
> See the lock around the multiple buffered input streams with the read1
> java.io.BufferedInputStream.read() calls are all synchronized blocks.
> {code}
> IO-Elevator-Thread-9" #288 daemon prio=5 os_prio=0 tid=0x00007fbf9c0aa000 nid=0xa07d
runnable [0x00007faf3b4b4000]
>    java.lang.Thread.State: RUNNABLE
> sun.security.provider.DigestBase.implCompressMultiBlock(DigestBase.java:140)
>         at sun.security.provider.DigestBase.engineUpdate(DigestBase.java:127)
>         at java.security.MessageDigest$Delegate.engineUpdate(MessageDigest.java:584)
>         at java.security.MessageDigest.update(MessageDigest.java:325)
>         at com.microsoft.azure.storage.core.Utility.writeToOutputStream(Utility.java:1329)
>         at com.microsoft.azure.storage.blob.CloudBlob$9.postProcessResponse(CloudBlob.java:1410)
>         at com.microsoft.azure.storage.blob.CloudBlob$9.postProcessResponse(CloudBlob.java:1310)
>         at com.microsoft.azure.storage.core.ExecutionEngine.executeWithRetry(ExecutionEngine.java:146)
>         at com.microsoft.azure.storage.blob.CloudBlob.downloadRangeInternal(CloudBlob.java:1499)
>         at com.microsoft.azure.storage.blob.BlobInputStream.dispatchRead(BlobInputStream.java:255)
>         - eliminated <0x00007fbdd5475b68> (a com.microsoft.azure.storage.blob.BlobInputStream)
>         at com.microsoft.azure.storage.blob.BlobInputStream.readInternal(BlobInputStream.java:448)
>         - locked <0x00007fbdd5475b68> (a com.microsoft.azure.storage.blob.BlobInputStream)
>         at com.microsoft.azure.storage.blob.BlobInputStream.read(BlobInputStream.java:420)
>         at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
>         at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
>         - locked <0x00007fbdd5475b38> (a java.io.BufferedInputStream)
>         at java.io.DataInputStream.read(DataInputStream.java:149)
>         at org.apache.hadoop.fs.azure.NativeAzureFileSystem$NativeAzureFsInputStream.read(NativeAzureFileSystem.java:820)
>         - locked <0x00007fbdd5475ac0> (a org.apache.hadoop.fs.azure.NativeAzureFileSystem$NativeAzureFsInputStream)
>         at java.io.BufferedInputStream.read1(BufferedInputStream.java:284)
>         at java.io.BufferedInputStream.read(BufferedInputStream.java:345)
>         - locked <0x00007fbdd5475a90> (a org.apache.hadoop.fs.BufferedFSInputStream)
>         at java.io.DataInputStream.read(DataInputStream.java:149)
>         at org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.fillBuffer(UncompressedSplitLineReader.java:62)
>         at org.apache.hadoop.util.LineReader.readDefaultLine(LineReader.java:216)
>         at org.apache.hadoop.util.LineReader.readLine(LineReader.java:174)
>         at org.apache.hadoop.mapreduce.lib.input.UncompressedSplitLineReader.readLine(UncompressedSplitLineReader.java:94)
> {code}



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