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https://issues.apache.org/jira/browse/HDFS-12094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096612#comment-16096612
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Wei-Chiu Chuang commented on HDFS-12094:
----------------------------------------
+1 will commit shortly.
> Log torrent when none isa-l EC is used.
> ---------------------------------------
>
> Key: HDFS-12094
> URL: https://issues.apache.org/jira/browse/HDFS-12094
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: erasure-coding
> Affects Versions: 3.0.0-beta1
> Reporter: LiXin Ge
> Assignee: LiXin Ge
> Priority: Minor
> Attachments: HDFS-12094.001.patch
>
>
> My hadoop is built without isa-l support, after the EC policy is enabled,
> whenever I get/put directory which contains many files, the log of
> warnings(see below) spam on the screen!
> This is unfriendly and depress the performance. Since we come to the beta
> version now,
> these logs should be deprecated and a one-time warning log instead of
> exception may be much better.
> {quote}
> 2017-07-06 15:42:41,398 WARN erasurecode.CodecUtil: Failed to create raw
> erasure encoder xor_native, fallback to next codec if possible
> java.lang.NoClassDefFoundError: Could not initialize class
> org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawEncoder
> at
> org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawErasureCoderFactory.createEncoder(NativeXORRawErasureCoderFactory.java:35)
> at
> org.apache.hadoop.io.erasurecode.CodecUtil.createRawEncoderWithFallback(CodecUtil.java:177)
> at
> org.apache.hadoop.io.erasurecode.CodecUtil.createRawEncoder(CodecUtil.java:129)
> at
> org.apache.hadoop.hdfs.DFSStripedOutputStream.<init>(DFSStripedOutputStream.java:302)
> at
> org.apache.hadoop.hdfs.DFSOutputStream.newStreamForCreate(DFSOutputStream.java:309)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1216)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1195)
> at org.apache.hadoop.hdfs.DFSClient.create(DFSClient.java:1133)
> ...
> at org.apache.hadoop.fs.shell.Command.run(Command.java:176)
> at org.apache.hadoop.fs.FsShell.run(FsShell.java:326)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:76)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:90)
> at org.apache.hadoop.fs.FsShell.main(FsShell.java:389)
>
> Caused by: java.lang.RuntimeException: libhadoop was built without ISA-L
> support
> at
> org.apache.hadoop.io.erasurecode.ErasureCodeNative.checkNativeCodeLoaded(ErasureCodeNative.java:69)
> at
> org.apache.hadoop.io.erasurecode.rawcoder.NativeXORRawDecoder.<clinit>(NativeXORRawDecoder.java:33)
> ... 25 more
> {quote}
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