[jira] [Updated] (HIVE-25492) Major query-based compaction is skipped if partition is empty
[ https://issues.apache.org/jira/browse/HIVE-25492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Antal Sinkovits updated HIVE-25492: --- Affects Version/s: 4.0.0-alpha-1 4.0.0-alpha-2 > Major query-based compaction is skipped if partition is empty > - > > Key: HIVE-25492 > URL: https://issues.apache.org/jira/browse/HIVE-25492 > Project: Hive > Issue Type: Bug >Affects Versions: 4.0.0-alpha-1, 4.0.0-alpha-2 >Reporter: Karen Coppage >Assignee: Antal Sinkovits >Priority: Major > Labels: pull-request-available > Time Spent: 2h 20m > Remaining Estimate: 0h > > Currently if the result of query-based compaction is an empty base, delta, or > delete delta, the empty directory is deleted. > This is because of minor compaction – if there are only deltas to compact, > then no compacted delete delta should be created (only a compacted delta). In > the same way, if there are only delete deltas to compact, then no compacted > delta should be created (only a compacted delete delta). > There is an issue with major compaction. If all the data in the partition has > been deleted, then we should get an empty base directory after compaction. > Instead, the empty base directory is deleted because it's empty and > compaction claims to succeed but we end up with the same deltas/delete deltas > we started with – basically compaction does not run. > Where to start? MajorQueryCompactor#commitCompaction -- This message was sent by Atlassian Jira (v8.20.1#820001)
[jira] [Updated] (HIVE-25492) Major query-based compaction is skipped if partition is empty
[ https://issues.apache.org/jira/browse/HIVE-25492?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] ASF GitHub Bot updated HIVE-25492: -- Labels: pull-request-available (was: ) > Major query-based compaction is skipped if partition is empty > - > > Key: HIVE-25492 > URL: https://issues.apache.org/jira/browse/HIVE-25492 > Project: Hive > Issue Type: Bug >Reporter: Karen Coppage >Assignee: Antal Sinkovits >Priority: Major > Labels: pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > Currently if the result of query-based compaction is an empty base, delta, or > delete delta, the empty directory is deleted. > This is because of minor compaction – if there are only deltas to compact, > then no compacted delete delta should be created (only a compacted delta). In > the same way, if there are only delete deltas to compact, then no compacted > delta should be created (only a compacted delete delta). > There is an issue with major compaction. If all the data in the partition has > been deleted, then we should get an empty base directory after compaction. > Instead, the empty base directory is deleted because it's empty and > compaction claims to succeed but we end up with the same deltas/delete deltas > we started with – basically compaction does not run. > Where to start? MajorQueryCompactor#commitCompaction -- This message was sent by Atlassian Jira (v8.20.1#820001)
