So, after many many fits and starts, we have a successful
single-controller bucardo multimaster setup in a dev environment. It
took forever for me to recognize that doing initial setup with the
remote as a 'target', doing one-time-copy, then changing the remote to
also be 'source', simply didn't work - the controller master still
considered the remote db's as targets (probably me coding the deploy
script incorrectly). Switched to setting it up as source/source, and
then manually copying the db data across did the trick. Never could get
a dual-controller (criss-cross) multimaster setup to work - though it
was probably related to the above setup problems.
That said. We did a test this morning of resilience to outage - I turned
off bucardo on the local master, then on the remote master, we did 1000
inserts into a table. Two hours later, I turned Bucardo back on. We
have three syncs, the changes were made to only one database.
Eliding lots of repetitious log output, the times are bothersome:
start Bucardo:
(23733) [Thu Sep 19 12:12:02 2013] MCP Starting Bucardo version 5.0.0
Almost ten minutes later, Bucardo begins inspecting the local db groups
on one dbgroup:
(23734) [Thu Sep 19 12:21:31 2013] MCP Inspecting source table
"public.alarm_notification_history" on database "local_trumgr_group"
Bucardo goes quiet again, then begin inspecting another dbgroup seven
minutes later:
(23734) [Thu Sep 19 12:28:16 2013] MCP Inspecting source table
"public.admin_permissions" on database "local_trumgr_main"
Then finally Bucardo actually brings the databases into sync:
(23869) [Thu Sep 19 12:29:14 2013] KID Delta count for
remote_trumgr_group.public.int_unit_moves : 1000
etc etc
(23869) [Thu Sep 19 12:29:18 2013] KID Totals: deletes=100 inserts=1200
conflicts=0
Below are my current settings - what am I missing? I don't understand
these very long quiescent periods in between Bucardo doing its work. I
can of course post the full logs and lists of relgroups, syncs, etc
separately.
autosync_ddl = newcol
bucardo_current_version = 5.0.0
bucardo_vac = 1
bucardo_version = 5.0.0
ctl_checkonkids_time = 10
ctl_createkid_time = 0.5
ctl_sleep = 0.2
default_conflict_strategy = bucardo_latest
default_email_from = [email protected]
default_email_host = localhost
default_email_to = [email protected]
email_debug_file =
endsync_sleep = 1.0
flatfile_dir = .
host_safety_check =
isolation_level = read uncommitted
kid_deadlock_sleep = 0.5
kid_nodeltarows_sleep = 0.5
kid_pingtime = 30
kid_restart_sleep = 1
kid_serial_sleep = 0.5
kid_sleep = 0.5
log_conflict_file = bucardo_conflict.log
log_level = normal
log_microsecond = 0
log_showlevel = 0
log_showline = 0
log_showpid = 1
log_showtime = 3
mcp_dbproblem_sleep = 0.5
mcp_loop_sleep = 0.2
mcp_pingtime = 30
mcp_vactime = 60
piddir = /var/run/bucardo
reason_file = bucardo.restart.reason.txt
semaphore_table = bucardo_status
statement_chunk_size = 1000
stats_script_url = http://www.bucardo.org/
stopfile = fullstopbucardo
syslog_facility = local6
tcp_keepalives_count = 0
tcp_keepalives_idle = 0
tcp_keepalives_interval = 0
vac_run = 30
vac_sleep = 120
warning_file = bucardo.warning.log
--
Paul Theodoropoulos
www.anastrophe.com
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