[LU-3534] async update cross-MDTs

• Type: New Feature
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.8.0
• Severity: 3
• Assignee: Di Wang
• Reporter: Di Wang

Description

This bug is for tracking async updates between MDTs.

Issue Links

• is duplicated by: LU-5302 Test failure sanity-lfsck test_13: mdt panic
• is related to: LU-6297 Move rename is_subdir check from MDD to MDT
• is related to: LU-6380 OI scrub should be able to scan the update log file before replay
• is related to: LU-5571 Test failure sanity-lfsck test_13: (2) unexpected status
• is related to: LU-7102 replay-dual test_26: FAIL: set default dirstripe failed
• is related to: LU-6287 sanity test 17n ASSERTION( atomic_read(&lu->ld_ref) == 0 ) failed
• is related to: LU-6288 conf-sanity test_2: test failed to respond and timed out
• is related to: LU-6289 sanity-scrub test_1c: unable to handle kernel NULL pointer dereference at 0000000000000010 19:17:56:IP: [<ffffffffa05d5079>] dt_los_put+0x9/0x30 [obdclass]
• is related to: LU-6290 sanity-lfsck test_14: unable to handle kernel NULL pointer dereference at 0000000000000010 13:56:17:IP: [<ffffffffa108678e>] osp_declare_object_create+0x12e/0x640 [osp]
• is related to: LU-6291 conf-sanity test_41a: failed to respond and timed out
• is related to: LU-6292 replay-single test_101: osd_trans_exec_op()) ASSERTION( oh->ot_handle != ((void *)0) ) failed:
• is related to: LU-6293 runtests test_1: panic on dbuf_dirty (async update for zfs DNE)
• is related to: LU-6294 sanity-scrub test_1a: test failed to respond and timed out
• is related to: LU-6295 sanity-lfsck test_4: oom on MDT0
• is related to: LU-6296 insanity test_1: check_for_recovery_ready()) ASSERTION( clnts <= obd->obd_max_recoverable_clients )
• is related to: LU-6328 sanity-lfsck test_14:unexpected size
• is related to: LU-6329 replay-single test_101: kernel panic on out_tx_attr_set_undo+0x64
• is related to: LU-6330 sanity test_17n:migrate failed -1
• is related to: LU-4583 Test failure on test suite replay-single, subtest test_80b (remote creation failed)
• is related to: LU-6362 DNE2: add dt object and thandle check in OSP and OSD
• is related to: LU-3541 add sanity tests for async updates between MDT
• is related to: LU-4837 DNE 2 async update cross-MDTs Test Plan
• is related to: LU-5222 Some operation should never happened on the sub-stripe.
• is related to: LU-6663 DNE2 directories has very very bad performance
• is related to: LU-6262 replay-single test_101: Oops at out_tx_attr_set_undo()