Improve the function: set dir name to store index files. #3419
Description
This issue is used to track prs that need to be included in the BookKeeper 4.15.1/4.16.0 release.
- Basic function: directories to store index files #3352
- add and check indexDirs in Cookie meta #3372
- Add a param in cookie_generate for updating indexDirs #3380
- stage 3~4 : Add indexDirs in statsLogger, add indexDirs's Listener. #3397
- stage 5: bugfix indexDirs for readLedgerIndexEntries #3398
- stage 6: bugfix indexDirs for LocationsIndexRebuildOp #3399
- stage 7: print indexDirs's info when start bookie #3401
- stage 8: bugfix indexDirs for LedgersIndexCheckOp #3402
- stage 9: bugfix indexDirs for LedgersIndexRebuildOp #3403
- stage 10: bugfix indexDirs for ConvertToInterleavedStorageCommand #3409
- indexDir compatible fix for issue 3430