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807 Commits

Author SHA1 Message Date
Thomas Schoebel-Theuer 924abf9f42 marsadm: factor out systemd reporting 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 601f378cd7 marsadm: workaround unimplemented AT_SYMLINK_NOFOLLOW and undef at utime() 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 136dcae0ba marsadm: safeguard return at resize 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer bcfcf25a31 marsadm: safeguard return at invalidate 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 22269a19bd marsadm: safeguard return at primary 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 7a18d1ab9e marsadm: safeguard return at fake-sync 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 0afde44073 marsadm: safeguard return at up 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer dcb60eaef3 marsadm: safeguard return at attach 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 2561800e68 marsadm: safeguard return at cron 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 75807a287c marsadm: safeguard return at leave-resource 2020-12-22 09:43:08 +01:00
Thomas Schoebel-Theuer 51fafadbb3 marsadm: fix transitive dependency keywords 2020-12-22 09:43:05 +01:00
Thomas Schoebel-Theuer ee058015ee marsadm: fix safe_touch 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer ef9c07b7d1 marsadm: fix set-systemd-unit 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer 29482a5c68 marsadm: document idea behind transitive closure computation 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer bd5b2ef885 marsadm: skip unnecessary template checks 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer dcdf848933 marsadm: fix missing dir /mars/userspace 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer f12ea371f9 marsadm: fix failover with systemd 2020-12-22 08:58:02 +01:00
Thomas Schoebel-Theuer cde7133356 marsadm: minor update command description 2020-11-29 17:41:22 +01:00
Thomas Schoebel-Theuer a48dcca14d marsadm: new commands {de,}activate-guest 2020-11-29 17:41:06 +01:00
Thomas Schoebel-Theuer 4cae329dc9 marsadm: speedup join-resource on non-reachable peers 2020-11-27 23:17:25 +01:00
Thomas Schoebel-Theuer 4e6ef0751b marsadm: fix annoying warning 2020-11-27 23:17:25 +01:00
Thomas Schoebel-Theuer 6fed821b6e marsadm: carefully shortcut self-waiting 2020-11-27 23:17:24 +01:00
Thomas Schoebel-Theuer 74f0da534b marsadm: fix join-cluster dir creation 2020-11-27 21:04:04 +01:00
Thomas Schoebel-Theuer 94df66a3c1 marsadm: fix too strong race detection 2020-11-26 11:40:11 +01:00
Thomas Schoebel-Theuer feb0540224 marsadm: fix typo 2020-11-12 05:37:17 +01:00
Thomas Schoebel-Theuer 30730e4a50 marsadm: safeguard races on log-purge-res 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 54226c78a7 marsadm: safeguard purge of recent logfiles 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 6020414d25 marsadm: safeguard deletion of recent logfiles 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer f871eb9514 marsadm: safeguard deletion of last logfile 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer e9e5c1a1da marsadm: safeguard logrotate --force 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer dc1e778abb marsadm: safeguard race between split-brain log-deletes 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 54cb4605d0 all: bump versions 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 3aa037d976 marsadm: push new replay links to primary 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 69199818c8 marsadm: include probe_dir in transitive closure 2020-11-10 16:04:01 +01:00
Thomas Schoebel-Theuer 1c0e4cf9a9 marsadm: new ssh-less split-cluster method 2020-11-10 16:03:50 +01:00
Thomas Schoebel-Theuer 25cec3526e marsadm: new ssh-less merge-cluster method 2020-11-10 16:02:46 +01:00
Thomas Schoebel-Theuer 9cb9e81310 marsadm: new _push_link_foreign onto foreign IP 2020-11-10 16:02:05 +01:00
Thomas Schoebel-Theuer 9a72f86c60 marsadm: new option --no-ssh 2020-11-07 08:56:09 +01:00
Thomas Schoebel-Theuer 7511ebadcf marsadm: local peer and resource cache 2020-11-07 08:56:09 +01:00
Thomas Schoebel-Theuer 29b22a779f marsadm: check peer activations 2020-11-07 08:56:07 +01:00
Thomas Schoebel-Theuer ab6990593d marsadm: better _get_ip 2020-11-07 08:34:57 +01:00
Thomas Schoebel-Theuer 18319eed23 marsadm: fix parsing of backslash-terminated lines 
Suggested-by: dhrmn <notifications@github.com>
 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 70a4aae762 marsadm: primitives {is,todo,nr}-secondary 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 7427478957 marsadm: primitives wait-{is,todo}-{primary,secondary}-{on,off} 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 461ac8b4cd marsadm: new switch semantics on marsadm primary 
Apparently, sysadmins often forget to execute "marsadm up mydata"
(or similar) after a failover.

Recall the failover command sequence:
"marsadm pause-fetch mydata; marsadm primary --force mydata"

Some months later, other sysadmins in the group are stumbling over
the very old "pause-fetch" after a regular planned handover via
"marsadm primary mydata". It works, but the former primary
(which is now secondary) does no longer fetch data, because of the
very old pause-fetch command which was never reverted.

Afterwards, /mars is filling up slowly over a long time.

Somewhen later (e.g. a few days), a monitoring alert "/mars too full"
is happening at midnight, leading to an unnecessary on-duty call.

A different type of monitoring could help, by not only
tracking the filling level of /mars, but also view-todo-fetch or
similar. However, some people dislike this, because there
exist operational use cases (like creation of backups) where pause-fetch
is executed _deliberately_ for a longer time.

Here is a workaround for a forgotten resume-fetch / up after
the first failover:

After the  _original_ "marsadm primary" or "primary --force" has
succeeded by appearance of /dev/mars/mydata, we simply execute
the equivalent of "marsadm up mydata".

This changes the semantics of the "primary" command. Hopefully
no scripts on this world will break.
 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 08c41805ec marsadm: purge any left-over probe dirs 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 838b85c508 marsadm: global purge at cron 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 93ef671cf3 marsadm: global purge at link-purge-all 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 4d05bb3796 marsadm: split up link_purge_global 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer bd5412d4f5 marsadm: fix version detection for gone members 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 5b1ca6773a marsadm: safeguard missing old deletions 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 533b13b3df marsadm: fix initial join-resource on slow metadata communication 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer c3585565be marsadm: fix join-cluster on unknown peer 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 1dd31c1285 marsadm: only ask myself upon self wait-cluster 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 90947c1b14 marsadm: fix wait-cluster race abort 2020-11-07 08:25:47 +01:00
Thomas Schoebel-Theuer 72cbf7b8be marsadm: skip unnecessary wait-cluster restart 2020-11-07 08:01:07 +01:00
Thomas Schoebel-Theuer b2cd7ddf23 marsadm: clear any local caches 2020-10-28 06:09:11 +01:00
Thomas Schoebel-Theuer d3acf3f9c8 marsadm: fix join-cluster missing dirs 2020-10-28 06:09:11 +01:00
Thomas Schoebel-Theuer c9b7fcf7f9 marsadm: safeguard join-resource endless loop 2020-10-28 06:09:11 +01:00
Thomas Schoebel-Theuer e3ebc5762b marsadm: view disk-error 2020-09-30 14:24:27 +02:00
Thomas Schoebel-Theuer 26b40474cb marsadm: re-activate any forgotten fetch on handover 2020-09-21 14:40:48 +02:00
Thomas Schoebel-Theuer ed95e24496 marsadm: allow leave-resource --force on empty resource 2020-09-19 17:42:34 +02:00
Thomas Schoebel-Theuer ae2668b265 marsadm: hint admins on --ignore-sync 2020-09-18 17:45:57 +02:00
Thomas Schoebel-Theuer 23748272ca marsadm: remove stray nonsense 2020-09-18 17:45:57 +02:00
Thomas Schoebel-Theuer 87064c1c5a marsadm: fix primitive disk-present 2020-09-10 11:21:38 +02:00
Thomas Schoebel-Theuer 11792c250e marsadm: remove annoying doubled error code 2020-09-05 23:08:30 +02:00
Thomas Schoebel-Theuer 60baf9c378 marsadm: fix old deletions max_nr detection 2020-09-05 23:06:38 +02:00
Thomas Schoebel-Theuer 24bb735d5a marsadm: report summary on non-reachable non-member hosts 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 2dbc0769d0 marsadm: old deletion method must ignore non-members 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 3a727a04b7 marsadm: use ssh-free push at lowlevel-delete-host 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 1e30e0c945 marsadm: use ssh-free push at lowlevel-set-host-ip 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer f9044fc9bf marsadm: workaround versionlink appearance race with log-rotate 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer ac689b8640 marsadm: workaround race with primary logrotate 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 80f18138d3 marsadm: now simplify get_alive_links() 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer bcc1a63318 marsadm: new concept guest members 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 2180337e85 marsadm: avoid old rsync method at join-resource 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer aecccd547c marsadm: unify naming of versionlink 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer c7983a6fb6 marsadm: purge stray and/or transient guest links 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 6d2091eb8e marsadm: add --keep-backups for alivelink purge 2020-09-03 16:29:55 +02:00
Thomas Schoebel-Theuer 8cddbc1851 marsadm: do not delete versionlinks during ongoing join-resource 2020-09-01 19:35:10 +02:00
Thomas Schoebel-Theuer 6750a4fc63 marsadm: join-resource needs preliminary guest-like activation 2020-09-01 19:35:10 +02:00
Thomas Schoebel-Theuer 019b991cda marsadm: earlier device check at {create,join}-resource 2020-09-01 19:35:10 +02:00
Thomas Schoebel-Theuer 3deaa91ba9 marsadm: fix non-generic timestamp override 2020-09-01 19:35:10 +02:00
Thomas Schoebel-Theuer eddddd5fcd marsadm: fix single-resource phased ldie 2020-09-01 19:35:10 +02:00
Thomas Schoebel-Theuer e71faba173 marsadm: fix invalid subtraction in corner case 2020-08-12 08:56:48 +02:00
Thomas Schoebel-Theuer d4c64f60fd marsadm: safeguard race on readlink 2020-08-12 08:56:48 +02:00
Thomas Schoebel-Theuer 89b647a261 marsadm: silence compat warning 2020-08-12 08:56:48 +02:00
Thomas Schoebel-Theuer 859c208835 marsadm: silence warnings 2020-08-12 08:56:47 +02:00
Thomas Schoebel-Theuer 58a5537d0a marsadm: purge historic links 2020-08-02 13:21:29 +02:00
Thomas Schoebel-Theuer a6167603ad marsadm: adjust report to masses of peers 2020-08-02 13:21:29 +02:00
Thomas Schoebel-Theuer 62c542bad1 marsadm: fix and speedup detection of common peers 2020-08-02 13:21:29 +02:00
Thomas Schoebel-Theuer 9b618876a7 marsadm: safeguard peer matching 2020-08-02 13:21:29 +02:00
Thomas Schoebel-Theuer 08ee99d304 marsadm: safeguard wait-cluster against illegal timestamps 2020-08-02 13:21:28 +02:00
Thomas Schoebel-Theuer 58359ff381 marsadm: safeguard features agains illegal values 2020-08-02 13:21:28 +02:00
Thomas Schoebel-Theuer 38bd337aeb marsadm: fix globs without any wildcard 2020-08-02 13:21:28 +02:00
Thomas Schoebel-Theuer 201648d414 Revert "marsadm: fix corner case of "all"" 
This reverts commit ea804c111a.
 2020-08-02 13:21:28 +02:00
Thomas Schoebel-Theuer f5d6f29ebf marsadm: new alivelinks 2020-08-02 13:21:26 +02:00
Thomas Schoebel-Theuer 620327703b marsadm: silence warning 2020-08-02 12:10:20 +02:00
Thomas Schoebel-Theuer 1cfca1590b marsadm: fix feature version computation 2020-08-02 12:10:20 +02:00
Thomas Schoebel-Theuer b9f68d947f marsadm: report marsadm_version 2020-08-02 12:10:20 +02:00