[LU-2059] mgc to backup configuration on osd-based llogs

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.4.0, Lustre 2.5.0, Lustre 2.6.0, Lustre 2.5.4
• Affects Version/s: Lustre 2.4.0, Lustre 2.4.1, Lustre 2.5.0, Lustre 2.6.0
• Labels: yuc2
• Severity: 3
• Assignee: John Fuchs-Chesney (Inactive)
• Reporter: Alex Zhuravlev

Issue Links

• duplicates: LU-2959 ASSERTION( cli->cl_mgc_configs_dir ) for 200 osts x 2 oss
• is duplicated by: LU-1931 Test failure on test suite conf-sanity, subtest test_5d
• is duplicated by: LU-3562 Test failure on test suite insanity, subtest test_1
• is duplicated by: LU-2959 ASSERTION( cli->cl_mgc_configs_dir ) for 200 osts x 2 oss
• is related to: LU-5984 server_mgc_set_fs()) can't set_fs -17
• is related to: LU-3347 (local_storage.c:872:local_oid_storage_init()) ASSERTION( (*los)->los_last_oid >= first_oid ) failed: 0 < 1
• is related to: LU-4565 recovery-mds-scale test_failover_ost: failed mounting ost after reboot
• is related to: LU-6395 One byte size shorter for name allocation in mgc_llog_local_copy()
• is related to: LU-2778 Test failure on test suite conf-sanity, subtest test_57b
• is related to: LU-4274 mount of zfs ost fails: Is the MGS running? if MGS is down
• is related to: LU-5796 MGS: non-config logname received: params
• is related to: LU-2158 remove lvfs and fsfilt code
• is related to: LU-4121 re-enable tests disabled due to LU-2059