Will Hayworth created CASSANDRA-11293:
-----------------------------------------
Summary: NPE when using CQLSSTableWriter
Key: CASSANDRA-11293
URL: https://issues.apache.org/jira/browse/CASSANDRA-11293
Project: Cassandra
Issue Type: Bug
Environment: C* 3.3
Reporter: Will Hayworth
Hi all!
I'm trying to using CQLSSTableWriter to load a bunch of historical data into my
cluster and I'm getting NullPointerExceptions consistently after having written
a few million rows (anywhere from 0.5 to 1.5 GB of data).
{code}
java.lang.NullPointerException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422) at
java.util.concurrent.ForkJoinTask.getThrowableException(ForkJoinTask.java:598)
at java.util.concurrent.ForkJoinTask.reportException(ForkJoinTask.java:677) at
java.util.concurrent.ForkJoinTask.invoke(ForkJoinTask.java:735) at
java.util.stream.ForEachOps$ForEachOp.evaluateParallel(ForEachOps.java:160) at
java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateParallel(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:233) at
java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) at
java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:583)
at
com.atlassian.engagementengine.segmentation.helenus.Daemon.main(Daemon.java:24)
Caused by: java.lang.NullPointerException at
org.apache.cassandra.db.ClusteringComparator.compare(ClusteringComparator.java:126)
at
org.apache.cassandra.db.ClusteringComparator.compare(ClusteringComparator.java:44)
at java.util.TimSort.binarySort(TimSort.java:296) at
java.util.TimSort.sort(TimSort.java:239) at
java.util.Arrays.sort(Arrays.java:1512) at
org.apache.cassandra.utils.btree.BTree$Builder.sort(BTree.java:1027) at
org.apache.cassandra.utils.btree.BTree$Builder.autoEnforce(BTree.java:1036) at
org.apache.cassandra.utils.btree.BTree$Builder.build(BTree.java:1075) at
org.apache.cassandra.db.partitions.PartitionUpdate.build(PartitionUpdate.java:572)
at
org.apache.cassandra.db.partitions.PartitionUpdate.maybeBuild(PartitionUpdate.java:562)
at
org.apache.cassandra.db.partitions.PartitionUpdate.holder(PartitionUpdate.java:370)
at
org.apache.cassandra.db.partitions.AbstractBTreePartition.unfilteredIterator(AbstractBTreePartition.java:177)
at
org.apache.cassandra.db.partitions.AbstractBTreePartition.unfilteredIterator(AbstractBTreePartition.java:172)
at
org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:209)
{code}
This may be a red herring, but I started encountering this when I parallelized
writes. (I wasn't aware that doing so was safe until I saw CASSANDRA-7463; I
Googled in vain for a while before that.)
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
