2. Try: sql-s5 (dewiki) will be read-only tomorrow

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2. Try: sql-s5 (dewiki) will be read-only tomorrow

DaB.-2
Hello all,

I just started replication on the fresh dump of s5 and will import commons
later tonight. For tomorrow I plan a second try to move the user-databases
from the old s5-host to the new one. So I hereby announce a read-only-time of
s5 for

TOMORROW, 21:00 UTC

of unknown length (should take not that long because the owner of the biggest
databases contacted me telling that no movement is needed) – at minimum a few
hours.

I will also dump wikidata from this fresh dump and import it everywhere during
the next hours (so a correct wikidata-copy should be everywhere soon again).

Sincerely,
DaB.

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Re: 2. Try: sql-s5 (dewiki) will be read-only tomorrow

DaB.-2
Hello all,

the movement is done (commons is missing at the moment at s5). s2 was also
rebooted successful and we had a general downtime arround 21:20 UTC. More
details about all 3 tomorrow.

Good night,

DaB.


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Re: 2. Try: sql-s5 (dewiki) will be read-only tomorrow

DaB.-2
Hello all,
At Sunday 24 February 2013 15:28:18 DaB. wrote:
> the movement is done (commons is missing at the moment at s5). s2 was also
> rebooted successful and we had a general downtime arround 21:20 UTC. More
> details about all 3 tomorrow.

ok, now with more details (sorry, but I really had to went for bed last
night).
The movement of the user-databases worked without problems. The dump&import
was done within 30min. The general downtime happened shortly after so sql-s5
was read-only for longer because I had to fix the other problem first. Please
check if everything was moved correct and message me if anything is missed
(the old box will be there until Wednesday 12:00 UTC).
There was a unplanned restart of mysql of sql-s5 after the movement which
caused a downtime for 10 minutes – sorry for that. The commons-import was not
done at that time and broke for that reason. I will restart it after the
reboot tonight.
Because z-dat-s5-b (the new host for sql-s5) shows similar performance-
problems like z-dat-s2-b (the new host for s2) I have configured the cassia
(the old sql-s5 host) for sql-s5-rr to lift a little load from z-dat-s5-b; I
will also add the same config-changes of z-dat-s2-b on z-dat-s5-b tonight.

Sincerely,
DaB.


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