[CASSANDRA-12512] compaction-stress: assertion error on accessing Schema.instance from client-mode tool

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Not A Problem
• Component/s: Legacy/Tools
• Severity: Normal
• Assignee: Yuki Morishita
• Reporter: Wei Deng

Authors

Yuki Morishita

Reviewers

Paulo Motta

• Created: 20/Aug/16 22:04
• Updated: 16/Apr/19 09:30
• Resolved: 16/Sep/16 16:21

Description

When I was trying the new compaction-stress tool from 3.10, I ran into the following error:

automaton@0ce59d338-1:~/cassandra-trunk$ ./tools/bin/compaction-stress write -d /tmp/compaction -g 5 -p https://gist.githubusercontent.com/tjake/8995058fed11d9921e31/raw/a9334d1090017bf546d003e271747351a40692ea/blogpost.yaml -t 4
java.lang.AssertionError: This assertion failure is probably due to accessing Schema.instance from client-mode tools - See CASSANDRA-8143.
	at org.apache.cassandra.config.CFMetaData.<init>(CFMetaData.java:288)
	at org.apache.cassandra.config.CFMetaData.<init>(CFMetaData.java:66)
	at org.apache.cassandra.config.CFMetaData$Builder.build(CFMetaData.java:1332)
	at org.apache.cassandra.config.CFMetaData.compile(CFMetaData.java:433)
	at org.apache.cassandra.stress.StressProfile.init(StressProfile.java:174)
	at org.apache.cassandra.stress.StressProfile.load(StressProfile.java:801)
	at org.apache.cassandra.stress.CompactionStress.getStressProfile(CompactionStress.java:162)
	at org.apache.cassandra.stress.CompactionStress$DataWriter.run(CompactionStress.java:289)
	at org.apache.cassandra.stress.CompactionStress.main(CompactionStress.java:353)

[UPDATE] It appears that compaction-stress compact fails on the same assert but via a totally different code path. The stack trace is like the following:

automaton@0ce59d338-1:~/cassandra-trunk$ ./tools/bin/compaction-stress compact -d /tmp/compaction -p https://gist.githubusercontent.com/tjake/8995058fed11d9921e31/raw/a9334d1090017bf546d003e271747351a40692ea/blogpost.yaml -t 4
java.lang.AssertionError: This assertion failure is probably due to accessing Schema.instance from client-mode tools - See CASSANDRA-8143.
	at org.apache.cassandra.config.CFMetaData.<init>(CFMetaData.java:288)
	at org.apache.cassandra.config.CFMetaData.<init>(CFMetaData.java:66)
	at org.apache.cassandra.config.CFMetaData$Builder.build(CFMetaData.java:1332)
	at org.apache.cassandra.config.CFMetaData.compile(CFMetaData.java:433)
	at org.apache.cassandra.db.SystemKeyspace.compile(SystemKeyspace.java:434)
	at org.apache.cassandra.db.SystemKeyspace.<clinit>(SystemKeyspace.java:115)
	at org.apache.cassandra.stress.CompactionStress$Compaction.run(CompactionStress.java:213)
	at org.apache.cassandra.stress.CompactionStress.main(CompactionStress.java:353)

(the last revision of the description had the wrong stack trace pasted and I've corrected that.)

As you can see this 2nd assert on compaction-stress compact is triggered by SystemKeyspace class, so fix in StressProfile class is only able to solve the assert problem for compaction-stress write, but not compaction-stress compact.

Issue Links

• is superceded by: CASSANDRA-12551 Fix CQLSSTableWriter compatibility changes from CASSANDRA-11844