[Labs-l] query caching

Yetkin Sakal superyetkin at yahoo.com
Tue Jan 10 19:20:05 UTC 2017


Hello Jamie,
Is there any other caching mechanism on labs replicas? For the past few days, I see my tools are showing results that I believe did not appear before. How can we make sure the queries run on replica servers return consistent results? 

    On Tuesday, January 10, 2017 9:31 PM, Jaime Crespo <jcrespo at wikimedia.org> wrote:
 

 Hi, Yetkin,

If you mean query cache on the labs replica servers or the tools-db one, it is disabled by default on all servers:

```
$ mysql  -e "SHOW GLOBAL VARIABLES like '%query_cache%'"
+------------------------------+---------+
| Variable_name                | Value   |
+------------------------------+---------+
| query_cache_size             | 0       |
| query_cache_type             | OFF     |
+------------------------------+---------+
```


On Tue, Jan 10, 2017 at 9:56 AM, Yetkin Sakal <superyetkin at yahoo.com> wrote:

Hello,
Is there any way to eliminate caching on Tool Labs? SQL_NO_CACHE option in MySQL does not seem to work at all.
Thanks.

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-- 
Jaime Crespo
<http://wikimedia.org>


   
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