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https://issues.apache.org/jira/browse/DRILL-5157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15945871#comment-15945871
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Paul Rogers commented on DRILL-5157:
------------------------------------
Development-only issue, no QA verification needed.
> Multiple Snappy versions on class path; causes unit test failures
> -----------------------------------------------------------------
>
> Key: DRILL-5157
> URL: https://issues.apache.org/jira/browse/DRILL-5157
> Project: Apache Drill
> Issue Type: Bug
> Affects Versions: 1.9.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Labels: ready-to-commit
> Fix For: 1.10.0
>
>
> Run the {{TestDrillbitResilience.doMemoryLeaksWhenCancelled}} unit test. It
> fails with the following stack trace and the memory leak trace shown second.
> Strangely, this error appears only if the test is run as part of the overall
> suite. The error does not appear if the test is run individually in the
> debugger. This suggests that the problem described here is a side-effect of a
> problem created by an earlier test.
> Investigation (see notes below) reveal that this is a Maven dependency
> management problem.
> Stack trace that seems to show that the code was trying to find a Snappy
> native library:
> {code}
> java.lang.reflect.InvocationTargetException
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.xerial.snappy.SnappyLoader.loadNativeLibrary(SnappyLoader.java:317)
> at org.xerial.snappy.SnappyLoader.load(SnappyLoader.java:219)
> at org.xerial.snappy.Snappy.<clinit>(Snappy.java:44)
> at
> org.apache.drill.exec.store.parquet.columnreaders.AsyncPageReader$DecompressionHelper.decompress(AsyncPageReader.java:402)
> at
> org.apache.drill.exec.store.parquet.columnreaders.AsyncPageReader.decompress(AsyncPageReader.java:169)
> at
> org.apache.drill.exec.store.parquet.columnreaders.AsyncPageReader.getDecompressedPageData(AsyncPageReader.java:96)
> at
> org.apache.drill.exec.store.parquet.columnreaders.AsyncPageReader.nextInternal(AsyncPageReader.java:219)
> at
> org.apache.drill.exec.store.parquet.columnreaders.PageReader.next(PageReader.java:280)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ColumnReader.readPage(ColumnReader.java:250)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ColumnReader.determineSize(ColumnReader.java:178)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ColumnReader.processPages(ColumnReader.java:130)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ParquetRecordReader.readAllFixedFieldsSerial(ParquetRecordReader.java:485)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ParquetRecordReader.readAllFixedFields(ParquetRecordReader.java:479)
> at
> org.apache.drill.exec.store.parquet.columnreaders.ParquetRecordReader.next(ParquetRecordReader.java:562)
> at
> org.apache.drill.exec.physical.impl.ScanBatch.next(ScanBatch.java:178)
> at
> org.apache.drill.exec.physical.impl.validate.IteratorValidatorBatchIterator.next(IteratorValidatorBatchIterator.java:215)
> at
> org.apache.drill.exec.record.AbstractRecordBatch.next(AbstractRecordBatch.java:119)
> …
> {code}
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