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From "Vishy Kasar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-8194) Reading from Auth table should not be in the request path
Date Mon, 27 Oct 2014 21:19:34 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-8194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vishy Kasar updated CASSANDRA-8194:
-----------------------------------
    Attachment:     (was: auth-failure.txt)

> Reading from Auth table should not be in the request path
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-8194
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8194
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Vishy Kasar
>            Assignee: Vishy Kasar
>
> We use PasswordAuthenticator and PasswordAuthorizer. The system_auth has a RF of 10 per
DC over 2 DCs. The permissions_validity_in_ms is 5 minutes. 
> We still have few thousand requests failing each day with the attached trace. The reason
for this is read cache request realizing that cached entry has expired and doing a blocking
request to refresh cache. 
> We should have cache refreshed periodically only in the back ground. The user request
should simply look at the cache and not try to refresh it. 



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