Naoki Takezoe created RANGER-5201:
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Summary: Retry GET request on server error in RangerRESTClient
Key: RANGER-5201
URL: https://issues.apache.org/jira/browse/RANGER-5201
Project: Ranger
Issue Type: Improvement
Components: plugins
Reporter: Naoki Takezoe
RangerRESTClient has a retry mechanism for connectivity errors that was
implemented in https://issues.apache.org/jira/browse/RANGER-3565 but it doesn't
retry HTTP 5xx errors because it works only when ClientHandlerException is
thrown:
https://github.com/apache/ranger/blob/dbaad69de10ff7b21b5bd3fc08c4b65b4aa25dff/agents-common/src/main/java/org/apache/ranger/plugin/util/RangerRESTClient.java#L409-L415
while Jersey's default client handler that is used in RangerRESTClient doesn't
raise an exception even for 5xx errors:
https://github.com/javaee/jersey-1.x/blob/1.19.3/jersey-client/src/main/java/com/sun/jersey/client/urlconnection/URLConnectionClientHandler.java
It's better to retry policy retrieval requests on HTTP 5xx errors too.
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