[HIVE-14621] LLAP: memory.mode = none has NPE

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.1.1, 2.2.0
• Labels: TODOC2.1.1
• Assignee: Sergey Shelukhin
• Reporter: Sergey Shelukhin
• Created: 24/Aug/16 20:09
• Updated: 08/Dec/16 14:10
• Resolved: 29/Aug/16 22:42

Description

When IO elevator is enabled, but cache and allocator are both disabled, NPEs happen. It's not really a recommended mode, but it's the only way to disable cache, so we probably need to fix it. I am also going to nuke the intermediate mode (allocator w/no cache) meanwhile cause it's pointless and just creates a zoo of configurations.

Caused by: java.lang.NullPointerException
at org.apache.hadoop.hive.llap.cache.LlapDataBuffer.getByteBufferDup(LlapDataBuffer.java:59)
at org.apache.hadoop.hive.ql.io.orc.encoded.StreamUtils.createDiskRangeInfo(StreamUtils.java:63)
at org.apache.hadoop.hive.ql.io.orc.encoded.StreamUtils.createSettableUncompressedStream(StreamUtils.java:48)
at org.apache.hadoop.hive.ql.io.orc.encoded.EncodedTreeReaderFactory$LongStreamReader$StreamReaderBuilder.build(EncodedTreeReaderFactory.java:514)
at org.apache.hadoop.hive.ql.io.orc.encoded.EncodedTreeReaderFactory.createEncodedTreeReader(EncodedTreeReaderFactory.java:1737)
at org.apache.hadoop.hive.llap.io.decode.OrcEncodedDataConsumer.decodeBatch(OrcEncodedDataConsumer.java:162)
at org.apache.hadoop.hive.llap.io.decode.OrcEncodedDataConsumer.decodeBatch(OrcEncodedDataConsumer.java:55)
at org.apache.hadoop.hive.llap.io.decode.EncodedDataConsumer.consumeData(EncodedDataConsumer.java:76)
at org.apache.hadoop.hive.llap.io.decode.EncodedDataConsumer.consumeData(EncodedDataConsumer.java:30)
at org.apache.hadoop.hive.ql.io.orc.encoded.EncodedReaderImpl.readEncodedColumns(EncodedReaderImpl.java:408)
at org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.performDataRead(OrcEncodedDataReader.java:424)
at org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader$4.run(OrcEncodedDataReader.java:227)
at org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader$4.run(OrcEncodedDataReader.java:224)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1724)
at org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:224)
at org.apache.hadoop.hive.llap.io.encoded.OrcEncodedDataReader.callInternal(OrcEncodedDataReader.java:93)
... 6 more