Commit Graph

17 Commits (959089b919e0195c427785f9f1a14d8a1f434e80)

Author SHA1 Message Date
Vitaliy Filippov 0a174bb313 Return success for already finished rollback operations
There was a FIXME and I actually hit it during tests :)
2020-10-24 18:46:19 +03:00
Vitaliy Filippov faa5e1436f Attempt journal trim even without new flushes
This is the new guaranteed unblocking method which replaces old trims
in init and rollback, and also fixes a possible stall when just several
writes in the beginning of the journal are flushed without triggering
a subsequent trim.
2020-10-24 01:28:47 +03:00
Vitaliy Filippov 5fbe36198a Fix journal trimming
1) Update journal's used_start in memory only after updating journal superblock.
Doing the opposite is incorrect because part of the journal will be lost if writers
overwrite its old beginning.

2) Sync journal device after updating the superblock.

3) Do not trim in rollback and init because trimming there would also require
updating the superblock. And the only reason to trim in both those places was
to unblock writers. And a guaranteed unblocking method will follow in the next
commit :)
2020-10-24 01:08:33 +03:00
Vitaliy Filippov f011e0c675 Do not block stabilize by list and list by write 2020-10-22 22:13:40 +00:00
Vitaliy Filippov bec5f921a6 Fix buffer overflows in the no_same_sector_overwrites mode 2020-10-17 23:30:16 +00:00
Vitaliy Filippov 0471b09b9c Add license notices to all source code files 2020-09-17 23:07:06 +03:00
Vitaliy Filippov 242d9a42a2 Change object format in prints to %lx:%lx v%lu 2020-09-05 17:44:05 +03:00
Vitaliy Filippov 985c309d7f Remove duplicate code between blockstore_{rollback,stable} and blockstore_init 2020-06-02 20:37:00 +03:00
Vitaliy Filippov c22e096943 Output journal offsets in debug trace in hex, add detailed "still waiting" messages 2020-06-01 16:18:19 +03:00
Vitaliy Filippov d1602b50b3 Fix BS_OP_ROLLBACK removing an incorrect version
Instead of only removing versions with oid == X and version > Y it was
also removing the previous version in list (with the previous oid or
with version == Y)
2020-05-24 01:51:28 +03:00
Vitaliy Filippov cd87333091 Fix PG state comparison leading to unclean PGs not flushing
(a & b == b) -> ((a & b) == b) !
2020-05-01 12:56:46 +03:00
Vitaliy Filippov 0f43f6d3f6 Fix crashes, print some stats
- fix the `delete op` inside lambda callback crash (it frees the lambda itself
  which results in use-after-free with g++)
- fix stop_client() reenterability
- fix a bug in the blockstore layer which resulted in always returning version=0
  for zero-length reads
- change error codes for blockstore_stabilize
2020-03-31 17:55:31 +03:00
Vitaliy Filippov 21d0b06959 Implement flushing (stabilize/rollback) of unstable entries on start of the PG 2020-03-14 02:49:34 +03:00
Vitaliy Filippov 46f9bd2a69 Make blockstore list operation return consistent snapshots 2020-03-14 02:10:25 +03:00
Vitaliy Filippov c3737ae3ff Add journal fsync to stabilize/rollback 2020-03-09 00:35:58 +03:00
Vitaliy Filippov 1696446545 Rename min/max _used to _flushed 2020-03-07 16:41:58 +03:00
Vitaliy Filippov 2b09710d6f Implement blockstore rollback operation
Rollback operation is required for the primary OSD to kill unstable
object versions in OSD peers so they don't occupy journal space
2020-01-24 20:18:14 +03:00