[KUDU-1061] DeleteTablet should asynchronously (or batch) delete blocks

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Won't Fix
• Affects Version/s: Private Beta
• Component/s: tserver
• Target Version/s: Public beta
• Assignee: Todd Lipcon
• Reporter: Todd Lipcon
• Created: 25/Aug/15 04:11
• Updated: 29/Feb/16 09:35
• Resolved: 02/Sep/15 14:40

Description

I ran a script to delete all the tables on the YCSB cluster (~50GB or so per host I think, so not even a huge amount). This ended up taking quite some time – the DeleteTablet RPC seems to synchronously try to delete all of the blocks, which can be quite slow (we do an fsync per block apparently, vs some kind of smarter batching). Seems like we should be able to do this all asynchronously.

Issue Links

• is related to: KUDU-1052 TSTabletManager startup very slow with lots of orphaned blocks
• is related to: KUDU-1060 Tombstoned tablets keep all of their blocks "orphaned" until next restart