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https://issues.apache.org/jira/browse/CASSANDRA-7759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14097620#comment-14097620
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Yuki Morishita commented on CASSANDRA-7759:
-------------------------------------------
[~fabrice.larcher] I think NPE on the comment above is different problem from
description.
I filed CASSANDRA-7770 and attached fix there.
> DROP TABLE makes C* unreachable
> -------------------------------
>
> Key: CASSANDRA-7759
> URL: https://issues.apache.org/jira/browse/CASSANDRA-7759
> Project: Cassandra
> Issue Type: Bug
> Environment: CQLSH of C* 2.10.-rc5 with one or two node(s).
> Reporter: Fabrice Larcher
>
> After a {{DROP KEYSPACE}} or {{DROP TABLE}} command from _CQLSH_ I often get
> the output :
> {code}
> errors={}, last_host=127.0.0.1
> {code}
> Then, the application can not access the node anymore (it uses the Java
> Driver 2.1.0-rc1). And I get the following stacktraces from the
> {{system.log}} file ;
> {code}
> ERROR [MemtableFlushWriter:5] 2014-08-13 11:26:07,577
> CassandraDaemon.java:166 - Exception in thread
> Thread[MemtableFlushWriter:5,5,main]
> java.lang.RuntimeException: Last written key
> DecoratedKey(28149890686391545-8456361251720325,
> 30313034353666392d666464362d343539362d393537372d653539336430333138396437) >=
> current key DecoratedKey(108b5f3f-fc06-4a0d-99f1-3c6484b32e04,
> 31303862356633662d666330362d346130642d393966312d336336343834623332653034)
> writing into
> ./../data/data/metrics/run-a3c1fe80216911e49fd1ab9c3338a2ff/metrics-run.run_probe-tmp-ka-2-Data.db
> at
> org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:172)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:215)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:351)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:314)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
> ~[guava-16.0.jar:na]
> at
> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> ~[na:1.7.0_45]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> ~[na:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) ~[na:1.7.0_45]
> {code}
> I also get the following (perhaps not related)
> {code}
> ERROR [MemtableFlushWriter:6] 2014-08-13 11:26:08,827
> CassandraDaemon.java:166 - Exception in thread
> Thread[MemtableFlushWriter:6,5,main]
> org.apache.cassandra.serializers.MarshalException: Invalid byte for ascii: -50
> at
> org.apache.cassandra.serializers.AsciiSerializer.validate(AsciiSerializer.java:39)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.db.marshal.AbstractType.getString(AbstractType.java:78)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at org.apache.cassandra.dht.LocalToken.toString(LocalToken.java:39)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at java.lang.String.valueOf(String.java:2854) ~[na:1.7.0_45]
> at java.lang.StringBuilder.append(StringBuilder.java:128) ~[na:1.7.0_45]
> at org.apache.cassandra.db.DecoratedKey.toString(DecoratedKey.java:118)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at java.lang.String.valueOf(String.java:2854) ~[na:1.7.0_45]
> at java.lang.StringBuilder.append(StringBuilder.java:128) ~[na:1.7.0_45]
> at
> org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:172)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:215)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.writeSortedContents(Memtable.java:351)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.db.Memtable$FlushRunnable.runWith(Memtable.java:314)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.io.util.DiskAwareRunnable.runMayThrow(DiskAwareRunnable.java:48)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297)
> ~[guava-16.0.jar:na]
> at
> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
> ~[apache-cassandra-2.1.0-rc5.jar:2.1.0-rc5]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> ~[na:1.7.0_45]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> ~[na:1.7.0_45]
> at java.lang.Thread.run(Thread.java:744) ~[na:1.7.0_45]
> {code}
> The issue does not always occur but I reproduce it at a rate of about 50% of
> the time. I experienced it already with C* 2.1.0 rc2 (perhaps earlier). But I
> remember that the issue did not exist with a C* 2.1.0-beta version (beta1 or
> beta2).
> Related to
> http://mail-archives.apache.org/mod_mbox/cassandra-user/201407.mbox/%3ccaabb5w_x8payjyrtx68wqepr3ajxn7zo-nluk0xk9o9+4wc...@mail.gmail.com%3E
> (and perhaps also to
> http://mail-archives.apache.org/mod_mbox/cassandra-user/201407.mbox/%3CCAEDUwd2iRX54UyexyPJ2eUEYLcMmtWLXPh9R3FMPjBvpGuX=l...@mail.gmail.com%3E
> )
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