Reduced performance on Sync server

Anything to do with the Pale Moon Sync service.

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Moonchild
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Reduced performance on Sync server

Unread postby Moonchild » Tue, 23 Jan 2018, 07:43

Just a notification to keep everyone in the loop on what's going on:

On Saturday, the SSD caching of the Sync server started failing due to Intel cutting corners in their storage solutions -- insufficient overprovisioning for wear leveling caused massive delays on writes, which resulted in the Sync server issues and errors for users last Saturday.
Our provider switched off SSD caching to mitigate and we're currently running on spinning disks only -- the node is stable but running at reduced performance levels as a result (caching is essential for heavy database use with tons of writes like Sync).

Replacement (larger) SSDs have been ordered for caching and will be put in (one at a time, to be sure) when they are on-site. We'll be informed when caching is switched back on.
Improving Mozilla code: You know you're on the right track with code changes when you spend the majority of your time deleting code.

"If you want to build a better world for yourself, you have to be willing to build one for everybody." -- Coyote Osborne

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Moonchild
Pale Moon guru
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Posts: 21716
Joined: Sun, 28 Aug 2011, 17:27
Location: 58.5°N 15.5°E
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Re: Reduced performance on Sync server

Unread postby Moonchild » Fri, 26 Jan 2018, 23:12

Replacements are in, caching is back on, and we should be working at full speed and efficiency again!
Improving Mozilla code: You know you're on the right track with code changes when you spend the majority of your time deleting code.

"If you want to build a better world for yourself, you have to be willing to build one for everybody." -- Coyote Osborne


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