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https://issues.apache.org/jira/browse/HADOOP-19255?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17875374#comment-17875374
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ASF GitHub Bot commented on HADOOP-19255:
-----------------------------------------
guptashailesh92 opened a new pull request, #7009:
URL: https://github.com/apache/hadoop/pull/7009
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### Description of PR
Fix LZO decompression due to
[change](https://github.com/apache/hadoop/pull/5912/files#diff-268b9968a4db21ac6eeb7bcaef10e4db744d00ba53989fc7251bb3e8d9eac7dfR904)
in hadoop 3..4.0
### How was this patch tested?
`hadoop fs -text file:///home/hadoop/part-ak.lzo`
### For code changes:
- [ ] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
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> LZO files cannot be decompressed
> --------------------------------
>
> Key: HADOOP-19255
> URL: https://issues.apache.org/jira/browse/HADOOP-19255
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 3.4.0
> Reporter: Shailesh Gupta
> Priority: Critical
>
> The following command fails with the below exception:
> hadoop fs -text [file:///home/hadoop/part-ak.lzo]
> {code:java}
> 2024-08-21 05:05:07,418 INFO lzo.GPLNativeCodeLoader: Loaded native gpl
> library
> 2024-08-21 05:05:08,706 INFO lzo.LzoCodec: Successfully loaded & initialized
> native-lzo library [hadoop-lzo rev 049362b7cf53ff5f739d6b1532457f2c6cd495e8]
> 2024-08-21 05:07:01,542 INFO compress.CodecPool: Got brand-new decompressor
> [.lzo]
> 2024-08-21 05:07:14,558 WARN lzo.LzopInputStream: Incorrect LZO file format:
> file did not end with four trailing zeroes.
> java.io.IOException: Corrupted uncompressed block
> at
> com.hadoop.compression.lzo.LzopInputStream.verifyChecksums(LzopInputStream.java:219)
> at
> com.hadoop.compression.lzo.LzopInputStream.close(LzopInputStream.java:342)
> at org.apache.hadoop.fs.shell.Display$Cat.printToStdout(Display.java:102)
> at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:95)
> at
> org.apache.hadoop.fs.shell.Command.processPathInternal(Command.java:383)
> at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:346)
> at
> org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:319)
> at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:301)
> at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:285)
> at
> org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:121)
> at org.apache.hadoop.fs.shell.Command.run(Command.java:192)
> at org.apache.hadoop.fs.FsShell.run(FsShell.java:327)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:82)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:97)
> at org.apache.hadoop.fs.FsShell.main(FsShell.java:390)
> Exception in thread "main" java.lang.InternalError: lzo1x_decompress_safe
> returned: -5
> at
> com.hadoop.compression.lzo.LzoDecompressor.decompressBytesDirect(Native
> Method)
> at
> com.hadoop.compression.lzo.LzoDecompressor.decompress(LzoDecompressor.java:315)
> at
> com.hadoop.compression.lzo.LzopDecompressor.decompress(LzopDecompressor.java:122)
> at
> com.hadoop.compression.lzo.LzopInputStream.decompress(LzopInputStream.java:252)
> at
> org.apache.hadoop.io.compress.DecompressorStream.read(DecompressorStream.java:110)
> at java.base/java.io.InputStream.read(InputStream.java:218)
> at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:95)
> at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:68)
> at org.apache.hadoop.io.IOUtils.copyBytes(IOUtils.java:132)
> at org.apache.hadoop.fs.shell.Display$Cat.printToStdout(Display.java:100)
> at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:95)
> at
> org.apache.hadoop.fs.shell.Command.processPathInternal(Command.java:383)
> at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:346)
> at
> org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:319)
> at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:301)
> at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:285)
> at
> org.apache.hadoop.fs.shell.FsCommand.processRawArguments(FsCommand.java:121)
> at org.apache.hadoop.fs.shell.Command.run(Command.java:192)
> at org.apache.hadoop.fs.FsShell.run(FsShell.java:327)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:82)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:97)
> at org.apache.hadoop.fs.FsShell.main(FsShell.java:390) {code}
> From my analysis, i was pinpoint to the
> [change|https://github.com/apache/hadoop/pull/5912/files#diff-268b9968a4db21ac6eeb7bcaef10e4db744d00ba53989fc7251bb3e8d9eac7dfR904]
> which changed _io.compression.codec.lzo.buffersize_ from 64KB to 256KB.
> Earlier, the default value was being picked from
> [here|https://github.com/twitter/hadoop-lzo/blob/master/src/main/java/com/hadoop/compression/lzo/LzoCodec.java#L51].
> Let me know if my analysis looks good. What should be the proper approach to
> fixing it?
>
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