Shailesh Gupta created HADOOP-19255:
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Summary: 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
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.lz4.buffersize_ from 64KB to 256KB.
Let me know if my analysis looks good. What should be the proper approach to
fix it.
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