Hi,
We have upgraded the system from Cassandra 2.1.16 to 3.11.1. After about 335M of data loading, repair with –pr and –full option was triggered for all keyspaces (7 keyspaces). Data size of main_k1 is ~170G. Please find the command executed for repair: *…./cassandra/bin/nodetool -u <username> -<password> -p 7199 repair -full –tr* It was observed that the repair for the first keyspace i.e main_k1 got finished in 2 hrs at 13:39 hrs. Even after about 1:30 hrs, there were just warning messages about the orphaned sstables. The repair command for the first keyspace completed successfully but then the nodetool repair command got stuck and there was no output for remaining 6 keyspaces. Please find the system logs below: *INFO [Repair-Task-2] 2018-01-18 11:35:01,161 RepairRunnable.java:139 - Starting repair command #1 (84dbf590-fc15-11e7-85c6-1594c4c73c8e), repairing keyspace main_k1 with repair options (parallelism: parallel, primary range: true, incremental: false, job threads: 1, ColumnFamilies: [], dataCenters: [], hosts: [], # of ranges: 256, pull repair: false)* *INFO [CompactionExecutor:39] 2018-01-18 13:39:58,174 RepairRunnable.java:343 - Repair command #1 finished in 2 hours 4 minutes 57 seconds* *WARN [ValidationExecutor:12] 2018-01-18 14:30:49,356 LeveledCompactionStrategy.java:273 - Live sstable ** …..**/data/main_k1/table1-4b9c1fd0f4f411e7889bd9124bc6a6eb/mc-22184-big-Data.db from level 3 is not on corresponding level in the leveled manifest. This is not a problem per se, but may indicate an orphaned sstable due to a failed compaction not cleaned up properly.* *……………………………………………………………….* *WARN [ValidationExecutor:26] 2018-01-18 15:03:53,598 LeveledCompactionStrategy.java:273 - Live sstable **…..**/data /main_k1/table1-4b9c1fd0f4f411e7889bd9124bc6a6eb/mc-22291-big-Data.db from level 2 is not on corresponding level in the leveled manifest. This is not a problem per se, but may indicate an orphaned sstable due to a failed compaction not cleaned up properly.* *WARN [ValidationExecutor:26] 2018-01-18 15:03:53,598 LeveledCompactionStrategy.java:273 - Live sstable **…..**/data /main_k1/table1-4b9c1fd0f4f411e7889bd9124bc6a6eb/mc-22216-big-Data.db from level 3 is not on corresponding level in the leveled manifest. This is not a problem per se, but may indicate an orphaned sstable due to a failed compaction not cleaned up properly.* Is anybody facing such issues with repair –pr for cassandra 3.11.1 ? Is this behavior due to the warning messages reported in logs. Thanks.