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https://issues.apache.org/jira/browse/CASSANDRA-7775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14126967#comment-14126967
]
Pavel Pletnev edited comment on CASSANDRA-7775 at 9/9/14 1:26 PM:
------------------------------------------------------------------
After trying to flush corrupted memtable MemtablePostFlusher thread stuck and
start to pill up.
This is my trace:
INFO [FlushWriter:4] 2014-09-09 14:55:03,405 Memtable.java (line 355) Writing
Memtable-ucc_ttl16318@1568409896(230/2300 serialized/live bytes, 2 ops)
INFO [OptionalTasks:1] 2014-09-09 14:55:03,410 ColumnFamilyStore.java (line
794) Enqueuing flush of Memtable-sstable_activity@1141428663(38070/1495207
serialized/live bytes, 2800 ops)
ERROR [FlushWriter:4] 2014-09-09 14:55:03,610 CassandraDaemon.java (line 199)
Exception in thread Thread[FlushWriter:4,5,main]
java.lang.RuntimeException: Cannot get comparator 1 in
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type).
This might due to a mismatch between the schema and the data read
at
org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:133)
at
org.apache.cassandra.db.marshal.AbstractCompositeType.split(AbstractCompositeType.java:100)
at
org.apache.cassandra.io.sstable.ColumnNameHelper.minComponents(ColumnNameHelper.java:103)
at
org.apache.cassandra.db.ColumnFamily.getColumnStats(ColumnFamily.java:443)
at
org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:194)
at
org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:389)
at
org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:342)
at
org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IndexOutOfBoundsException: index (1) must be less than
size (1)
at
com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:306)
at
com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:285)
at
com.google.common.collect.SingletonImmutableList.get(SingletonImmutableList.java:45)
at
org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:124)
... 11 more
Version: 2.0.10
was (Author: merentafo):
After trying to flush corrupted memtable MemtablePostFlusher thread stuck and
start to pill up.
This is my trace:
INFO [FlushWriter:4] 2014-09-09 14:55:03,405 Memtable.java (line 355) Writing
Memtable-ucc_ttl16318@1568409896(230/2300 serialized/live bytes, 2 ops)
INFO [OptionalTasks:1] 2014-09-09 14:55:03,410 ColumnFamilyStore.java (line
794) Enqueuing flush of Memtable-sstable_activity@1141428663(38070/1495207
serialized/live bytes, 2800 ops)
ERROR [FlushWriter:4] 2014-09-09 14:55:03,610 CassandraDaemon.java (line 199)
Exception in thread Thread[FlushWriter:4,5,main]
java.lang.RuntimeException: Cannot get comparator 1 in
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type).
This might due to a mismatch between the schema and the data read
at
org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:133)
at
org.apache.cassandra.db.marshal.AbstractCompositeType.split(AbstractCompositeType.java:100)
at
org.apache.cassandra.io.sstable.ColumnNameHelper.minComponents(ColumnNameHelper.java:103)
at
org.apache.cassandra.db.ColumnFamily.getColumnStats(ColumnFamily.java:443)
at
org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:194)
at
org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:389)
at
org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:342)
at
org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
at
org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IndexOutOfBoundsException: index (1) must be less than
size (1)
at
com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:306)
at
com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:285)
at
com.google.common.collect.SingletonImmutableList.get(SingletonImmutableList.java:45)
at
org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:124)
... 11 more
> Cassandra attempts to flush an empty memtable into disk and fails
> -----------------------------------------------------------------
>
> Key: CASSANDRA-7775
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7775
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: $ nodetool version
> ReleaseVersion: 2.0.6
> $ java -version
> java version "1.7.0_51"
> Java(TM) SE Runtime Environment (build 1.7.0_51-b13)
> Java HotSpot(TM) 64-Bit Server VM (build 24.51-b03, mixed mode)
> Reporter: Omri Bahumi
>
> I'm not sure what triggers this flush, but when it happens the following
> appears in our logs:
> {code}
> INFO [OptionalTasks:1] 2014-08-15 02:24:20,115 ColumnFamilyStore.java (line
> 785) Enqueuing flush of Memtable-app_recs_best_in_expr_prefix2@1219170646(0/0
> serialized/live bytes, 0 ops)
> INFO [FlushWriter:34] 2014-08-15 02:24:20,116 Memtable.java (line 331)
> Writing Memtable-app_recs_best_in_expr_prefix2@1219170646(0/0 serialized/live
> bytes, 0 ops)
> ERROR [FlushWriter:34] 2014-08-15 02:24:20,127 CassandraDaemon.java (line
> 196) Exception in thread Thread[FlushWriter:34,5,main]
> java.lang.RuntimeException: Cannot get comparator 1 in
> org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type).
> This might due to a mismatch between the schema and the data read
> at
> org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:133)
> at
> org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:140)
> at
> org.apache.cassandra.db.marshal.AbstractCompositeType.compare(AbstractCompositeType.java:96)
> at
> org.apache.cassandra.db.marshal.AbstractCompositeType.compare(AbstractCompositeType.java:35)
> at
> org.apache.cassandra.db.RangeTombstone$Tracker$1.compare(RangeTombstone.java:125)
> at
> org.apache.cassandra.db.RangeTombstone$Tracker$1.compare(RangeTombstone.java:122)
> at java.util.TreeMap.compare(TreeMap.java:1188)
> at java.util.TreeMap$NavigableSubMap.<init>(TreeMap.java:1264)
> at java.util.TreeMap$AscendingSubMap.<init>(TreeMap.java:1699)
> at java.util.TreeMap.tailMap(TreeMap.java:905)
> at java.util.TreeSet.tailSet(TreeSet.java:350)
> at java.util.TreeSet.tailSet(TreeSet.java:383)
> at
> org.apache.cassandra.db.RangeTombstone$Tracker.update(RangeTombstone.java:203)
> at
> org.apache.cassandra.db.ColumnIndex$Builder.add(ColumnIndex.java:192)
> at
> org.apache.cassandra.db.ColumnIndex$Builder.build(ColumnIndex.java:138)
> at
> org.apache.cassandra.io.sstable.SSTableWriter.rawAppend(SSTableWriter.java:202)
> at
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:187)
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:365)
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:318)
> at
> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:744)
> Caused by: java.lang.IndexOutOfBoundsException: index (1) must be less than
> size (1)
> at
> com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:306)
> at
> com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:285)
> at
> com.google.common.collect.SingletonImmutableList.get(SingletonImmutableList.java:45)
> at
> org.apache.cassandra.db.marshal.CompositeType.getComparator(CompositeType.java:124)
> ... 23 more
> {code}
> After this happens, the MemtablePostFlusher thread pool starts piling up.
> When trying to restart the cluster, a similar exception occurs when trying to
> replay the commit log.
> Our way of recovering from this is to delete all commit logs in the faulty
> node, start it and issue a repair.
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