[jira] [Created] (SENTRY-902) SimpleDBProviderBackend should retry the authrization process decently

["Yibing Shi (JIRA)" <ji...@apache.org>]

Yibing Shi created SENTRY-902:
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             Summary: SimpleDBProviderBackend should retry the authrization process decently
                 Key: SENTRY-902
                 URL: https://issues.apache.org/jira/browse/SENTRY-902
             Project: Sentry
          Issue Type: Bug
    Affects Versions: 1.4.0
            Reporter: Yibing Shi


Currently {{SimpleDBProviderBackend}} doesn't retry the authorization properly. Problems are:
# It retry count is hard coded. Always retries once
# No wait time between before retries
# The method calls itself recursively, which could causes stack overflow if retries too many times
# If an exception happens in {{SentryPolicyServiceClient.listPrivilegesForProvider}}, then {{policyServiceClient}} won't be closed, which could cause resource leak.

Related codes are: 
https://github.com/cloudera/sentry/blob/cdh5-1.4.0_5.4.7/sentry-provider/sentry-provider-db/src/main/java/org/apache/sentry/provider/db/SimpleDBProviderBackend.java#L75-L105



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