[HDFS-12094] Log torrent when none isa-l EC is used.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0-beta1
• Fix Version/s: 3.0.0-beta1
• Component/s: erasure-coding
• Target Version/s: 3.0.0-beta1
• Hadoop Flags: Reviewed
• Flags: Patch
• Assignee: LiXin Ge
• Reporter: LiXin Ge
• Created: 06/Jul/17 08:53
• Updated: 07/Aug/17 23:49
• Resolved: 21/Jul/17 19:25

Description

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.

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

Issue Links

• is duplicated by: HADOOP-14418 Confusing failure stack trace when codec fallback is happend