[ https://issues.apache.org/jira/browse/KNOX-2736?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17557930#comment-17557930 ]
ASF subversion and git services commented on KNOX-2736: ------------------------------------------------------- Commit fc48add49a0c6015247b71ca118c90fb6dde347f in knox's branch refs/heads/dependabot/npm_and_yarn/knox-token-management-ui/async-2.6.4 from Attila Magyar [ https://gitbox.apache.org/repos/asf?p=knox.git;h=fc48add49 ] KNOX-2736 Knox clients should support retry/failover - addendum (#578) > Knox clients should support retry/failover > ------------------------------------------ > > Key: KNOX-2736 > URL: https://issues.apache.org/jira/browse/KNOX-2736 > Project: Apache Knox > Issue Type: Improvement > Components: KnoxShell > Reporter: Attila Magyar > Assignee: Attila Magyar > Priority: Major > Time Spent: 1h > Remaining Estimate: 0h > > Not having retries in knox clients can cause service upgrade failures. > The apache http client has a default mechanism > (StandardHttpRequestRetryHandler and DefaultServiceUnavailableRetryStrategy) > to support retries. > * DefaultServiceUnavailableRetryStrategy only retries in case of a 503 - > ServiceUnavailable. > * StandardHttpRequestRetryHandler retries when a non excluded exception > occurs during the request. > The excluded exceptions are: InterruptedIOException, UnknownHostException, > ConnectException, SSLException. In these cases no retry is going to happen. > The following HTTP methods are considered idempotent so they can be retried: > GET, HEAD, PUT, DELETE, OPTIONS, TRACE. > Note that if an endpoint is implemented as a non-idempotent way (for example > a PUT) then this might have unwanted side-effects. > Other methods such as POST are only retried if the request has not yet > written out to the output stream when the error happened. Or if > requestSentRetryEnabled is enabled. -- This message was sent by Atlassian Jira (v8.20.7#820007)