dhatchayani opened a new pull request #3221: [CARBONDATA-3386] Concurrent Merge index and query is failing URL: https://github.com/apache/carbondata/pull/3221 **Problem:** Concurrent merge index and query is failing. Load is triggered on a table, at the end of the load Merge index will be triggered. But this is triggered after the table status is updated as SUCCESS/PARTIAL SUCCESS for that segments. So for the concurrent query, this segment is available for query. Once the merge index is done, it deletes the index files, which are still referred by the query, this leads to the query failure. **Solution:** Trigger merge index before table status updation for all the operations like LOAD, COMPACT. - [ ] Any interfaces changed? - [ ] Any backward compatibility impacted? - [ ] Document update required? - [x] Testing done Existing UT - [ ] For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.
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