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https://issues.apache.org/jira/browse/KNOX-2543?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sandeep More reassigned KNOX-2543:
----------------------------------
Assignee: Sandeep More
> Intermittent NoHttpResponseException errors
> -------------------------------------------
>
> Key: KNOX-2543
> URL: https://issues.apache.org/jira/browse/KNOX-2543
> Project: Apache Knox
> Issue Type: Bug
> Reporter: Matyas Orhidi
> Assignee: Sandeep More
> Priority: Major
>
> I'd like to request some sort of retry logic to handle intermittent backend
> errors (in non-ha cases)
> For example:
> ```
> 2021-02-25 15:00:29,768 WARN knox.gateway
> (DefaultDispatch.java:executeOutboundRequest(184)) - Connection exception
> dispatching request: https://xxx.com:8001/security_settings?doAs=knoxui
> org.apache.http.NoHttpResponseException: xxx.com:8001 failed to respond
> org.apache.http.NoHttpResponseException: xxx.com:8001 failed to respond
> at
> org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:141)
> at
> org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:56)
> at
> org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:259)
> at
> org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:163)
> at
> org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:157)
> at
> org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:273)
> at
> org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:125)
> at
> org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:272)
> at
> org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:186)
> at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
> at
> org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
> at
> org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
> at
> org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56)
> at
> org.apache.knox.gateway.dispatch.DefaultDispatch.executeOutboundRequest(DefaultDispatch.java:167)
> at
> org.apache.knox.gateway.dispatch.DefaultDispatch.executeRequest(DefaultDispatch.java:153)
> at
> org.apache.knox.gateway.dispatch.DefaultDispatch.executeRequestWrapper(DefaultDispatch.java:136)
> at
> org.apache.knox.gateway.dispatch.DefaultDispatch.doGet(DefaultDispatch.java:303)
> at
> org.apache.knox.gateway.dispatch.GatewayDispatchFilter$GetAdapter.doMethod(GatewayDispatchFilter.java:174)
> at
> org.apache.knox.gateway.dispatch.GatewayDispatchFilter.doFilter(GatewayDispatchFilter.java:125)
> at
> org.apache.knox.gateway.filter.AbstractGatewayFilter.doFilter(AbstractGatewayFilter.java:58)
> ```
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