[GitHub] jerrypeng commented on issue #3679: Pulsar SQL queries fail with "failed: refCnt: 0"

[GitBox]

jerrypeng commented on issue #3679: Pulsar SQL queries fail with "failed: 
refCnt: 0"
URL: https://github.com/apache/pulsar/issues/3679#issuecomment-467137767
 
 
   The source exception is actually the following which causes the split to 
close and the exceptions in the close method
   
   ```
   2019-02-25T11:00:59.712-0800 ERROR   SplitRunner-2-98        
com.facebook.presto.execution.executor.TaskExecutor     Error processing Split 
20190225_190056_00000_ps5tb.1.0-1 PulsarSplit{splitId=1, connectorId='pulsar', 
schemaName='public/default', tableName='test_topic', splitSize=3319, schema='{
    "name": "SimpleRecord",
    "type": "record",
    "fields": [
     {
      "name": "field1",
      "type": [
       "null",
       "string"
      ]
     }
    ]
   }', schemaType=JSON, startPositionEntryId=3320, endPositionEntryId=6639, 
startPositionLedgerId=46, endPositionLedgerId=46} (start = 3.31200428911106E8, 
wall = 440 ms, cpu = 0 ms, wait = 1 ms, calls = 1)
   org.apache.pulsar.shade.io.netty.util.IllegalReferenceCountException: 
refCnt: 0
        at 
org.apache.pulsar.shade.io.netty.buffer.AbstractByteBuf.ensureAccessible(AbstractByteBuf.java:1450)
        at 
org.apache.pulsar.shade.io.netty.buffer.AbstractByteBuf.checkReadableBytes0(AbstractByteBuf.java:1434)
        at 
org.apache.pulsar.shade.io.netty.buffer.AbstractByteBuf.checkReadableBytes(AbstractByteBuf.java:1420)
        at 
org.apache.pulsar.shade.io.netty.buffer.AbstractByteBuf.readBytes(AbstractByteBuf.java:895)
        at 
org.apache.pulsar.sql.presto.JSONSchemaHandler.deserialize(JSONSchemaHandler.java:66)
        at 
org.apache.pulsar.sql.presto.PulsarRecordCursor.advanceNextPosition(PulsarRecordCursor.java:404)
        at 
com.facebook.presto.spi.RecordPageSource.getNextPage(RecordPageSource.java:93)
        at 
com.facebook.presto.operator.TableScanOperator.getOutput(TableScanOperator.java:242)
        at com.facebook.presto.operator.Driver.processInternal(Driver.java:373)
        at 
com.facebook.presto.operator.Driver.lambda$processFor$8(Driver.java:282)
        at com.facebook.presto.operator.Driver.tryWithLock(Driver.java:672)
        at com.facebook.presto.operator.Driver.processFor(Driver.java:276)
        at 
com.facebook.presto.execution.SqlTaskExecution$DriverSplitRunner.processFor(SqlTaskExecution.java:973)
        at 
com.facebook.presto.execution.executor.PrioritizedSplitRunner.process(PrioritizedSplitRunner.java:162)
        at 
com.facebook.presto.execution.executor.TaskExecutor$TaskRunner.run(TaskExecutor.java:477)
        at 
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at 
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
   ```

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


With regards,
Apache Git Services