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Re: Database Level Caching

Nicolas Trangosi <nicolas...@...>
 

Hi Boxuan,

I have configured janusgraph with:

cache.db-cache-time: 600000  
cache.db-cache: true  
cache.db-cache-size: 50000000  
index.search.elasticsearch.create.ext.number_of_replicas: 0
storage.buffer-size: 1024
index.search.elasticsearch.create.ext.number_of_shards: 1
cache.cache.db-cache-time: 0
index.search.index-name: dcbrain
index.search.backend: elasticsearch
storage.port: 9042
ids.block-size: 1000000
schema.default: logging
storage.cql.batch-statement-size: 50
index.search.hostname: dfe-elasticsearch
storage.backend: cql
storage.hostname: dfe-cassandra
storage.cql.local-max-requests-per-connection: 4096
index.search.port: 9200

I have load some data on the graph and dump memory.
When I import this dump with jvisualVM, retained size for ExpirationKCVSCache 257 Mb when the limit should be 50 Mb.
image.png

Regards,
Nicolas

Le lun. 4 janv. 2021 à 13:11, BO XUAN LI <libo...@...> a écrit :
Hi Nicolas,

Can you provide your configurations and the memory usage you observed?

Regards,
Boxuan

On Jan 4, 2021, at 3:44 PM, Nicolas Trangosi <nicolas...@...> wrote:

Hi,
I try to use  Database Level Caching as described in https://docs.janusgraph.org/basics/cache/ but it seems to use more memory than the configured threshold ( cache.db-cache-size ). Does anyone use such a feature ? Is it production ready ?

Regards,
Nicolas


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