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We are using Cassandra 4.0 version and their Lucene jar plugin have used in the lib folder of Cassandra to run the Lucene index queries but internment the Lucene queries are not working. They suddenly stopped working. We then dropped the index and recreated it on the same table to make it work. I was not able find the root cause for the same issue when we are checking the system logs and find below error.

ERROR [ReadStage-4] 2022-11-25 06:12:29,910 AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread Thread[ReadStage-4,10,main] java.lang.AssertionError: null
ERROR [ReadStage-1] 2022-11-25 06:12:33,737 AbstractLocalAwareExecutorService.java:169 - Uncaught exception on thread Thread[ReadStage-1,5,main] java.lang.AssertionError: null

The Lucene index query stopped working suddenly.

Stephen Ostermiller
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