Sumit Agrawal created HDDS-9456:
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Summary: Non-blocking container statemachine cache
Key: HDDS-9456
URL: https://issues.apache.org/jira/browse/HDDS-9456
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Sumit Agrawal
Assignee: Sumit Agrawal
It can make use of ratis resources to be acquired to control resource usages.
And ozone cache can be non-blocking.
{*}Cache{*}:
* Eviction policy with FIFO
* Queue length: 1024
* Queue data size: 1GB (but considering actual data size as happening for
ratis)
* Removal when majority followers are in sync
Ratis: 1024 request and space size 1GB, pending request will always get data
from case. (follower in majority will always get from cache)
*Block not found case(StorageContainerException) (RATIS-722):* When Cache Miss
and disk write is not completed{*},{*} data is not found causing
StorageContainerException. This case must not happen for pending requests, as
cache will be available for pending requests and operation will be successful
on successful write completion.
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