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You don't notice when their indexers cannot write; preforming a search is basically RO.
by ZiiS 4y ago
You don't notice when their indexers cannot write; preforming a search is basically RO.
- bhouston 4y agoIt is still a relatively complex multi-machine RO operation. It isn't like serving a static site.
- ZiiS 4y agoSure, but they can have several copies of the index per datacenter, retry your query multiple times posibly even in a diffrent datacenter. New code and even updated indexes can be tried and then fall back to yesterday's version.
- substation13 4y ago> preforming a search is basically RO You don't know this. Google results are not the same for all users. How do you know there isn't R/W going on, particularly when signed-in to Google? (Unless you work at Google on search, in which case I stand corrected!)
- ZiiS 4y agoI am certain the are normally writes going on; they do run Analytics on their homepage. However they get to defer, retry and play lots of eventually consistent tricks, worst case just swallow the exceptions. The fact they can make the service _seem_ to the end user as fully working whilst being unable to write is a major factor in achieving their world beating reliability.