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Chat Area => General Discussion Area => Topic started by: TheBoy on 04 January 2016, 18:10:07

Title: Happens in 3's
Post by: TheBoy on 04 January 2016, 18:10:07
Apparently an old wives tale, she tells me.


Woke up this morning to a barrage of emails that OOF is not displaying pages. Opps. Poxy primary DB server had run out of disk space, and shut itself down to protect itself. Quick fix - allocate ext4 reserved amount, start it up so it works, then in background allocate more physical disk space, and reset ext4 reserved back to 5%.

Just before midday, whilst on the phone, everything goes quiet. *Everything*. Silence. Its amazing how used you get to the fans. UPS went offline, knocking out all 3 physical servers, switches, router, modems, phones, the lot. Bloody Opps  >:(. Pop the old (shagged) batteries back in, just to get UPS started, and slowing bring up the hypervisors and VMs. Unsurprisingly, the 2 OOF database servers disagreed, so had to break the sync and set it back up, which takes an age, as MariaDB needs a full dump of the master copy.

Get most of the stuff up, so now my email starts working, email from big bro (who is on holibobs), his website has died. FFS  >:(.  Turns out to be *exactly* the same issue as what happened to OOF overnight, the primary DB server ran out of disk space. Whats the chances of that   >:(


He's hoping the year improves.
Title: Re: Happens in 3's
Post by: VXL V6 on 04 January 2016, 18:29:26
Whats the chances of that   >:(

If it can happen it will happen. :-X

Fortunately power down's in DC's or just a single rack have never happened to me.  :-X ;D [Andy whistles to himself and leaves via the nearest fire door as the maglocks seem to have become de energised.....]


Title: Re: Happens in 3's
Post by: TheBoy on 04 January 2016, 18:52:32
Whats the chances of that   >:(

If it can happen it will happen. :-X

Fortunately power down's in DC's or just a single rack have never happened to me.  :-X ;D [Andy whistles to himself and leaves via the nearest fire door as the maglocks seem to have become de energised.....]
Fortunately, at work, we have a lot of resilience, so when it happens, its impact is minimal when we lose a datacentre.

For OOF, and my bro's setup over at his premises, such resilience is a luxury too far.  We are forced to have too many single points of failure for cost and technical reasons.  A network switch crash the other day highlighted the impact, poxy Netgear shite!
Title: Re: Happens in 3's
Post by: STEMO on 04 January 2016, 18:52:59
Put a bigger disk in the DB server. Next.
Title: Re: Happens in 3's
Post by: VXL V6 on 04 January 2016, 18:57:36
Whats the chances of that   >:(

If it can happen it will happen. :-X

Fortunately power down's in DC's or just a single rack have never happened to me.  :-X ;D [Andy whistles to himself and leaves via the nearest fire door as the maglocks seem to have become de energised.....]
Fortunately, at work, we have a lot of resilience, so when it happens, its impact is minimal when we lose a datacentre.

For OOF, and my bro's setup over at his premises, such resilience is a luxury too far.  We are forced to have too many single points of failure for cost and technical reasons.  A network switch crash the other day highlighted the impact, poxy Netgear shite!

Yes, similar at work, DC and all lower levels of resilience.... It's just that someone also installed Netbotz to capture those oops moments, 'wasn't me me guv, honest'
Title: Re: Happens in 3's
Post by: TheBoy on 04 January 2016, 19:01:09
Put a bigger disk in the DB server. Next.
Feeling flush? That's very generous of you.  Remember, you'll also need to do similar to the secondary database that maintains a replica.


(More disk space already allocated).

Title: Re: Happens in 3's
Post by: STEMO on 04 January 2016, 19:02:21
Put a bigger disk in the DB server. Next.
Feeling flush? That's very generous of you.  Remember, you'll also need to do similar to the secondary database that maintains a replica.


(More disk space already allocated).
Would that be the answer? Wow, lucky guess  ;D
Title: Re: Happens in 3's
Post by: STEMO on 04 January 2016, 19:03:56
Put a bigger disk in the DB server. Next.
Feeling flush? That's very generous of you.  Remember, you'll also need to do similar to the secondary database that maintains a replica.


(More disk space already allocated).
Would that be the answer? Wow, lucky guess  ;D
I'd have tried a second hand dvd.  ;D
Title: Re: Happens in 3's
Post by: TheBoy on 04 January 2016, 19:04:18
Put a bigger disk in the DB server. Next.
Feeling flush? That's very generous of you.  Remember, you'll also need to do similar to the secondary database that maintains a replica.


(More disk space already allocated).
Would that be the answer? Wow, lucky guess  ;D
STEMO = Computer God
Title: Re: Happens in 3's
Post by: STEMO on 04 January 2016, 19:06:33
Put a bigger disk in the DB server. Next.
Feeling flush? That's very generous of you.  Remember, you'll also need to do similar to the secondary database that maintains a replica.


(More disk space already allocated).
Would that be the answer? Wow, lucky guess  ;D
STEMO = Computer God
Are you being sarcastic  there?  ;D
Title: Re: Happens in 3's
Post by: T.m.f on 05 January 2016, 21:15:00
In reality the hamster died again,maybe upgrade it to a guinea pig so lasts longer  ;D
Title: Re: Happens in 3's
Post by: Gaffers on 06 January 2016, 10:49:54
In reality the hamster died again,maybe upgrade it to a guinea pig so lasts longer  ;D

I think it finally succumbed to TB's Xmas indulgence in brussel sprouts ::)