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From "Benjamin Lerer (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CASSANDRA-13320) upgradesstables fails after upgrading from 2.1.x to 3.0.11
Date Fri, 10 Mar 2017 20:25:04 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-13320?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benjamin Lerer reassigned CASSANDRA-13320:
------------------------------------------

    Assignee:     (was: Benjamin Lerer)

> upgradesstables fails after upgrading from 2.1.x to 3.0.11
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-13320
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13320
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Zhongxiang Zheng
>         Attachments: 13320.patch
>
>
> I tried to execute {{nodetool upgradesstables}} after upgrading cluster from 2.1.16 to
3.0.11, but it fails when upgrading a table with 2i.
> This problem can be reproduced as follows.
> {code}
> $ ccm create test -v 2.1.16 -n 1 -s
> $ ccm node1 cqlsh  -e "CREATE KEYSPACE test WITH replication = {'class':'SimpleStrategy',
'replication_factor':1}"
> $ ccm node1 cqlsh  -e "CREATE TABLE test.test(k1 text, k2 text, PRIMARY KEY( k1 ));"
> $ ccm node1 cqlsh  -e "CREATE INDEX k2 ON test.test(k2);"
>  
> $ ccm node1 cqlsh  -e "INSERT INTO test.test (k1, k2 ) VALUES ( 'a', 'a') ;"
> $ ccm node1 cqlsh  -e "INSERT INTO test.test (k1, k2 ) VALUES ( 'a', 'b') ;"
>  
> $ ccm node1 nodetool flush
>  
> $ for i in `seq 1 `; do ccm node${i} stop; ccm node${i} setdir -v3.0.11;ccm node${i}
start; done
> $ ccm node1 nodetool upgradesstables test test
> Traceback (most recent call last):
>   File "/home/y/bin/ccm", line 86, in <module>
>     cmd.run()
>   File "/home/y/lib/python2.7/site-packages/ccmlib/cmds/node_cmds.py", line 267, in run
>     stdout, stderr = self.node.nodetool(" ".join(self.args[1:]))
>   File "/home/y/lib/python2.7/site-packages/ccmlib/node.py", line 742, in nodetool
>     raise NodetoolError(" ".join(args), exit_status, stdout, stderr)
> ccmlib.node.NodetoolError: Nodetool command '/home/zzheng/.ccm/repository/3.0.11/bin/nodetool
-h localhost -p 7100 upgradesstables test test' failed; exit status: 2; stderr: WARN  06:29:08
Only 10476 MB free across all data volumes. Consider adding more capacity to your cluster
or removing obsolete snapshots
> error: null
> -- StackTrace --
> java.lang.AssertionError
> 	at org.apache.cassandra.db.rows.Rows.collectStats(Rows.java:70)
> 	at org.apache.cassandra.io.sstable.format.big.BigTableWriter$StatsCollector.applyToRow(BigTableWriter.java:197)
> 	at org.apache.cassandra.db.transform.BaseRows.applyOne(BaseRows.java:116)
> 	at org.apache.cassandra.db.transform.BaseRows.add(BaseRows.java:107)
> 	at org.apache.cassandra.db.transform.UnfilteredRows.add(UnfilteredRows.java:41)
> 	at org.apache.cassandra.db.transform.Transformation.add(Transformation.java:156)
> 	at org.apache.cassandra.db.transform.Transformation.apply(Transformation.java:122)
> 	at org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:147)
> 	at org.apache.cassandra.io.sstable.SSTableRewriter.append(SSTableRewriter.java:125)
> 	at org.apache.cassandra.db.compaction.writers.DefaultCompactionWriter.realAppend(DefaultCompactionWriter.java:57)
> 	at org.apache.cassandra.db.compaction.writers.CompactionAwareWriter.append(CompactionAwareWriter.java:109)
> 	at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:195)
> 	at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> 	at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:89)
> 	at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:61)
> 	at org.apache.cassandra.db.compaction.CompactionManager$5.execute(CompactionManager.java:415)
> 	at org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:307)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> 	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> 	at org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79)
> 	at java.lang.Thread.run(Thread.java:745)
> {code}
> The result of dumping the 2i sstable is as follows.
> {code}
> [
> {"key": "a",
>  "cells": [["61",1488961273,1488961269822817,"d"]]},
> {"key": "b",
>  "cells": [["61","",1488961273015759]]}
> ]
> {code}
> This problem is occurred by the tombstone row. When this row is processed in {{LegacyLayout.java}},
it will be treated as a row maker.
> https://github.com/apache/cassandra/blob/cassandra-3.0/src/java/org/apache/cassandra/db/LegacyLayout.java#L1195
> Then the deletion info will be lost.
> As a result, the row will be a empty row, which causes the assertion error.
> To avoid this, I added the code to add row deletion info when the row is a tombstone
and *not* a row marker, and it works as I expect, which means that {{upgradesstables}} succeeds
and row deletion info is remained.
> However I don't understand whether this change will cause another problem. Anyway, I
submit my patch as a reference.



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