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okay, thanks for the explanation, so from the 3GB of Cache (default cache for SSD) only a 0.5GB is going to K/V and 2.5 going to metadata. Is there a way of knowing how much k/v, metadata, data is storing
and how full cache is so I can adjust my ratios?, I was thinking
some ratios (like 0.9 k/v, 0.07 meta 0.03 data) but only
speculating, I dont have any real data. El 11/10/2017 a las 14:32, Mohamad
Gebai escribió:
Hi Jorge, On 10/10/2017 07:23 AM, Jorge Pinilla López wrote:Are .99 KV, .01 MetaData and .0 Data ratios right? they seem a little too disproporcionate.Yes, this is correct.Also .99 KV and Cache of 3GB for SSD means that almost the 3GB would be used for KV but there is also another attributed called bluestore_cache_kv_max which is by fault 512MB, then what is the rest of the cache used for?, nothing? shouldnt it be more kv_max value or less KV ratio?Anything over the *cache_kv_max value goes to the metadata cache. You can look in your logs to see the final values of kv, metadata and data cache ratios. To get data cache, you need to lower the ratios of metadata and kv caches. Mohamad --
Jorge Pinilla López jorpilo@xxxxxxxxx Estudiante de ingenieria informática Becario del area de sistemas (SICUZ) Universidad de Zaragoza PGP-KeyID: A34331932EBC715A |
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