Hi Aviv,
Thanks for your reply. We upgrade from 4.4.7 to 4.4.10 and then 4.5.2
We observed it started to increase since we upgraded to 4.5.2. I have to do dwh
vacuuming every 2-3 days. Here for example.
----------------------------------------------
omitted output.........
[root@manager ~]# dwh-vacuum -f -v
SELECT pg_catalog.set_config('search_path', '', false);
vacuumdb: vacuuming database "ovirt_engine_history"
RESET search_path;
SELECT c.relname, ns.nspname FROM pg_catalog.pg_class c
JOIN pg_catalog.pg_namespace ns ON c.relnamespace OPERATOR(pg_catalog.=) ns.oid
LEFT JOIN pg_catalog.pg_class t ON c.reltoastrelid OPERATOR(pg_catalog.=) t.oid
WHERE c.relkind OPERATOR(pg_catalog.=) ANY (array['r', 'm'])
ORDER BY c.relpages DESC;
SELECT pg_catalog.set_config('search_path', '', false);
VACUUM (FULL, VERBOSE) public.host_interface_samples_history;
INFO: vacuuming "public.host_interface_samples_history"
INFO: "host_interface_samples_history": found 94115 removable, 70244664
nonremovable row versions in 1903718 pages
DETAIL: 0 dead row versions cannot be removed yet.
CPU: user: 36.72 s, system: 12.91 s, elapsed: 195.78 s.
VACUUM (FULL, VERBOSE) public.host_interface_hourly_history;
INFO: vacuuming "public.host_interface_hourly_history"
INFO: "host_interface_hourly_history": found 126645 removable, 40469226
nonremovable row versions in 482262 pages
DETAIL: 0 dead row versions cannot be removed yet.
CPU: user: 20.71 s, system: 5.58 s, elapsed: 115.83 s.
VACUUM (FULL, VERBOSE) public.vm_disks_usage_samples_history;
INFO: vacuuming "public.vm_disks_usage_samples_history"
INFO: "vm_disks_usage_samples_history": found 2028 removable, 1672491
nonremovable row versions in 307111 pages
DETAIL: 0 dead row versions cannot be removed yet.
CPU: user: 4.35 s, system: 3.77 s, elapsed: 51.81 s.
-------------------------------------------------------------------------------------------------
We have the plans to switch dwh and grafana to separate vm. Meanwhile we were
curious to know the reason of this rapid increase.
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