[CASSANDRA-4832] AssertionError: keys must not be empty

• Type: Bug
• Status: Resolved
• Priority: Low
• Resolution: Fixed
• Fix Version/s: 1.1.7
• Labels: indexing

Environment

Debian 6.0.5

• Severity: Low
• Assignee: Tristan Seligmann
• Reporter: Tristan Seligmann

Authors

Tristan Seligmann

Reviewers

Jonathan Ellis

• Created: 18/Oct/12 05:15
• Updated: 16/Apr/19 09:32
• Resolved: 22/Oct/12 16:50

Description

I'm getting errors like this logged:

INFO 07:08:32,104 Compacting [SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-114-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-113-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-110-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hd-108-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hd-106-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hd-107-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-112-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-109-Data.db'), SSTableReader(path='/var/lib/cassandra/data/Fusion/quoteinfo/Fusion-quoteinfo.quoteinfo_search_value_idx-hf-111-Data.db')]
ERROR 07:08:32,108 Exception in thread Thread[CompactionExecutor:5,1,main]
java.lang.AssertionError: Keys must not be empty
at org.apache.cassandra.io.sstable.SSTableWriter.beforeAppend(SSTableWriter.java:133)
at org.apache.cassandra.io.sstable.SSTableWriter.append(SSTableWriter.java:154)
at org.apache.cassandra.db.compaction.CompactionTask.execute(CompactionTask.java:159)
at org.apache.cassandra.db.compaction.CompactionManager$1.runMayThrow(CompactionManager.java:154)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)

I'm not really sure when this started happening; they tend to be logged during a repair but I can't reproduce the error 100% reliably.

Issue Links

• is duplicated by: CASSANDRA-4991 "Keys must not be empty" error on secondary indexing.