Zhongxiang Zheng created CASSANDRA-13320:
--------------------------------------------
Summary: 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
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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