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https://issues.apache.org/jira/browse/FLINK-17642?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Flink Jira Bot updated FLINK-17642:
-----------------------------------
Labels: auto-deprioritized-major (was: stale-major)
Priority: Minor (was: Major)
This issue was labeled "stale-major" 7 ago and has not received any updates so
it is being deprioritized. If this ticket is actually Major, please raise the
priority and ask a committer to assign you the issue or revive the public
discussion.
> Exception while reading broken ORC file is hidden
> -------------------------------------------------
>
> Key: FLINK-17642
> URL: https://issues.apache.org/jira/browse/FLINK-17642
> Project: Flink
> Issue Type: Improvement
> Components: Connectors / ORC
> Affects Versions: 1.8.3, 1.9.3, 1.10.1
> Reporter: Nikola
> Priority: Minor
> Labels: auto-deprioritized-major
> Fix For: 1.10.4, 1.11.4, 1.14.0
>
>
> I have a simple setup of a batch job like this:
> {code:java}
> BatchTableEnvironment tableEnvFirst = BatchTableEnvironment.create(env);
> OrcTableSource orcTableSource = OrcTableSource.builder()
> .path("path", true)
> .forOrcSchema(ORC.getSchema())
> .withConfiguration(hdfsConfig)
> .build();
> tableEnvFirst.registerTableSource("table", orcTableSource);
> Table nnfTable = tableEnvFirst.sqlQuery(sqlString);
> return tableEnvFirst.toDataSet(nnfTable, Row.class);{code}
>
> And that works just fine to fetch ORC files from hdfs as a DataSet.
> However, there are some ORC files which are broken. "Broken" means that they
> are invalid in some way and cannot be processed / fetch normally. They throw
> exceptions. Examples of those are:
> {code:java}
> org.apache.orc.FileFormatException: Malformed ORC file /user/hdfs/orcfile-1
> Invalid postscript length 2
> at org.apache.orc.impl.ReaderImpl.ensureOrcFooter(ReaderImpl.java:258)
> at org.apache.orc.impl.ReaderImpl.extractFileTail(ReaderImpl.java:562)
> at org.apache.orc.impl.ReaderImpl.<init>(ReaderImpl.java:370)
> at org.apache.orc.OrcFile.createReader(OrcFile.java:342)
> at org.apache.flink.orc.OrcRowInputFormat.open(OrcRowInputFormat.java:225)
> at org.apache.flink.orc.OrcRowInputFormat.open(OrcRowInputFormat.java:63)
> at
> org.apache.flink.runtime.operators.DataSourceTask.invoke(DataSourceTask.java:173)
>
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
> at java.lang.Thread.run(Thread.java:748){code}
>
> {code:java}
> com.google.protobuf.InvalidProtocolBufferException: Protocol message
> contained an invalid tag (zero).
> at
> com.google.protobuf.InvalidProtocolBufferException.invalidTag(InvalidProtocolBufferException.java:89)
>
> at com.google.protobuf.CodedInputStream.readTag(CodedInputStream.java:108)
> at org.apache.orc.OrcProto$PostScript.<init>(OrcProto.java:18526)
> at org.apache.orc.OrcProto$PostScript.<init>(OrcProto.java:18490)
> at org.apache.orc.OrcProto$PostScript$1.parsePartialFrom(OrcProto.java:18628)
> at org.apache.orc.OrcProto$PostScript$1.parsePartialFrom(OrcProto.java:18623)
> at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:89)
> at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:95)
> at com.google.protobuf.AbstractParser.parseFrom(AbstractParser.java:49)
> at org.apache.orc.OrcProto$PostScript.parseFrom(OrcProto.java:19022)
> at org.apache.orc.impl.ReaderImpl.extractPostScript(ReaderImpl.java:436)
> at org.apache.orc.impl.ReaderImpl.extractFileTail(ReaderImpl.java:564)
> at org.apache.orc.impl.ReaderImpl.<init>(ReaderImpl.java:370)
> at org.apache.orc.OrcFile.createReader(OrcFile.java:342)
> at org.apache.flink.orc.OrcRowInputFormat.open(OrcRowInputFormat.java:225)
> at org.apache.flink.orc.OrcRowInputFormat.open(OrcRowInputFormat.java:63)
> at
> org.apache.flink.runtime.operators.DataSourceTask.invoke(DataSourceTask.java:173)
>
> at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:705)
> at org.apache.flink.runtime.taskmanager.Task.run(Task.java:530)
> at java.lang.Thread.run(Thread.java:748){code}
>
> Given that some specific files are broken, that's OK to throw exception.
> However, the issue is that I cannot catch those exceptions and they make my
> job to fail. I tried to wrap everything in a try-catch block just to see what
> I can catch and handle, but it seems that when flink runs it, it's not run
> from that place, but rather from DataSourceTask.invoke()
> I can digged a little bit to find out why don't I get an exception and I can
> see that {{OrcTableSource}} creates {{OrcRowInputFormat}} instance
> [here|#L157]] which then calls open() and open() has this signature:
> {code:java}
> public void open(FileInputSplit fileSplit) throws IOException {{code}
>
> So the open() throws the exception but I am not able to catch it.
> Is what I am doing correct or is there any other way to handle exception
> coming from DataSourceTask.invoke()? In general my goal would be to ignore
> all broken/corrupted ORC files but that does not seem to be possible
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