Exception during index Merge operation

[arteymix]

HSEARCH000058: HSEARCH000118: Exception during index Merge operation Logger Name org.hibernate.search.exception.impl.LogErrorHandler Date Thu Feb 26 23:01:57 PST 2026 Level ERROR Thread Name Lucene Merge Thread #8 for index ubic.gemma.model.expression.experiment.ExpressionExperiment Source org.hibernate.search.exception.impl.LogErrorHandler.handleException(LogErrorHandler.java:84)

Slack Message

[arteymix]

I relocated the search index directory in Tomcat work directory, so this might be related.

[ppavlidis]

Still applies in Gemma 2.0-alpha: the Hibernate Search 7 migration (Lucene MergePolicy under HS7) plus the search-dir relocation in Tomcat work directory may be related, as @arteymix noted. Needs focused follow-up: confirm the resolved gemma.search.dir under prod Tomcat is on a filesystem that supports the locking model HS7 expects (relevant: HibernateConfig.resolveSearchIndexBase coercion landed in 04d720c). Reproduce by forcing a merge and capturing the underlying IOException.

[ppavlidis]

Gemma 2 disposition: Won't fix