vitalif
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vitastor
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58 Commits (master)

Author SHA1 Message Date
Vitaliy Filippov bf9a175efc Move C/C++ sources to src subdirectory 2021-02-25 23:59:03 +03:00
Vitaliy Filippov 4a2dcf7b6b Update the license to VNPL 1.1 
VNPL 1.1 is slightly reworded to make it clear that proprietary software
interacting with Vitastor and providing some kind of service to end users isn't
a "Proxy Program" if it's not specially designed to be used with Vitastor.

For example, Windows OS running in a virtual machine stored in a Vitastor
cluster clearly isn't.
 2021-02-25 23:55:33 +03:00
Vitaliy Filippov 534a4a657e Rename space_check.sectors_required to sectors_to_write 2021-02-02 01:30:23 +03:00
Vitaliy Filippov 9b5d8b9ad4 Fix multiple-sector journal writes, add assertions to not miss any SQEs 2021-02-02 01:29:11 +03:00
Vitaliy Filippov 9ef7f865b0 Fix incorrect calls to prepare_journal_sector_write() when flushing multiple sectors 2021-02-01 19:31:10 +03:00
Vitaliy Filippov 1018764c91 Fix write->delete->write bugs, add & fix some debugging output 2020-12-04 23:21:58 +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 416a80b099 Make blockstore object state a combination of type and workflow 2020-07-04 22:20:32 +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 0f43f6d3f6 Fix crashes, print some stats 
Notably:
- 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 8a8b619875 Handle secondary OSD connection errors [in theory] 2020-03-30 19:51:34 +03:00
Vitaliy Filippov c0a22d825d Fix degraded object recovery (it seems to work now) 2020-03-25 02:17:41 +03:00
Vitaliy Filippov 46f9bd2a69 Make blockstore list operation return consistent snapshots 2020-03-14 02:10:25 +03:00
Vitaliy Filippov 3f522c66e6 Implement immediate commit mode 2020-03-10 01:59:15 +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 1e21555343 Add FIXME with Oops 2020-03-04 20:34:45 +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
Vitaliy Filippov 43f6cfeb73 Extract alignments to options 2020-01-16 00:54:25 +03:00
Vitaliy Filippov a3d3949dce Do not overwrite same journal sector multiple times 
It doesn't reduce actual WA, but it reduces tail latency (Q=32, 10% / 50% / 90% / 99% / 99.95%):
- write: 766us/979us/1090us/1303us/1729us vs 1074us/1450us/2212us/3261us/4113us
- sync: 701us/881us/1188us/1762us/2540us vs 269us/955us/1663us/2638us/4146us
 2020-01-15 02:53:01 +03:00
Vitaliy Filippov b3f2102f33 Add queue stall tracking 2020-01-10 01:23:46 +03:00
Vitaliy Filippov a7e74670a5 Split blockstore implementation and interface header 2019-12-15 14:57:18 +03:00
Vitaliy Filippov 749ab6e2c6 Rename blockstore_operation to blockstore_op_t 2019-12-15 14:57:18 +03:00
Vitaliy Filippov f4d06ba102 OP_DELETE flushing 2019-12-02 02:41:14 +03:00
Vitaliy Filippov a7a0946ba8 WIP OP_DELETE 2019-12-01 17:25:59 +03:00
Vitaliy Filippov 35a6ed728d Fix another stall due to bad unstable_writes tracking, do not try to write beyond the end of the journal 2019-11-28 00:28:08 +03:00
Vitaliy Filippov 9ba243b3ee Add debug prints 2019-11-27 18:07:51 +03:00
Vitaliy Filippov ce5cd13bc8 Use fdatasync (just for testing over an FS) 2019-11-27 02:41:30 +03:00
Vitaliy Filippov 1080cbdf12 Fix used journal sector tracking again 2019-11-27 01:20:09 +03:00
Vitaliy Filippov b8e53f8c67 Fix op validation, fix journal sector usage tracking 
Now it runs for a while with fio but then crashes with ENOSPC because
of an apparent bug in the allocator
 2019-11-26 20:38:25 +03:00
Vitaliy Filippov 3e46728321 Continue fio engine 2019-11-26 00:03:09 +03:00
Vitaliy Filippov 50cf3667fa Track unstable writes 2019-11-25 01:16:34 +03:00
Vitaliy Filippov 82a2b8e7d9 Fix some extra bugs and it seems now it is even able to trim the journal 2019-11-22 12:08:44 +03:00
Vitaliy Filippov 2b12428cb1 Debug OP_STABLE so the basic case passes without problem 2019-11-21 02:09:18 +03:00
Vitaliy Filippov e40a71b2ce Check result to be equal to iov_len 2019-11-18 02:09:34 +03:00
Vitaliy Filippov eec1c35ea4 Begin to debug ... all of this stuff :) 2019-11-16 02:32:29 +03:00
Vitaliy Filippov c38c8ab029 Prevent two parallel flushes of the same object 2019-11-15 13:58:35 +03:00
Vitaliy Filippov f1e236c6e8 Sync metadata & data after copying from journal 2019-11-14 14:09:07 +03:00
Vitaliy Filippov bc549553e4 Rename dirty_entry.size to len, remove some unneeded methods and fields, read metadata correctly 2019-11-14 01:13:07 +03:00
Vitaliy Filippov 1c6b9778a4 Handle all io_uring events using lambdas 2019-11-13 22:46:42 +03:00
Vitaliy Filippov 214da03735 Move flusher into a separate file 2019-11-13 17:46:05 +03:00
Vitaliy Filippov 75398414d1 Add grouping flusher class 2019-11-13 17:41:57 +03:00
Vitaliy Filippov db66b3916e Begin metadata read-modify-write 2019-11-13 16:07:29 +03:00
Vitaliy Filippov bb55a7fbf4 Zero-fill new objects and write them to the main storage 2019-11-12 20:49:57 +03:00
Vitaliy Filippov 4afa95b0e3 FSM is a dreadful unreadable thing, reimplement using gotos 2019-11-12 18:16:41 +03:00
Vitaliy Filippov 34451b6e44 Try to implement journal flusher as a FSM 2019-11-12 18:16:38 +03:00
Vitaliy Filippov f892104aed Begin journal flusher 2019-11-12 12:02:11 +03:00