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Posted to dev@lucene.apache.org by "Mark Miller (JIRA)" <ji...@apache.org> on 2014/02/09 01:48:20 UTC
[jira] [Comment Edited] (SOLR-5700) Improve error handling of
remote queries (proxied requests)
[ https://issues.apache.org/jira/browse/SOLR-5700?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13895786#comment-13895786 ]
Mark Miller edited comment on SOLR-5700 at 2/9/14 12:48 AM:
------------------------------------------------------------
[~sdavids] - whoops - didn't see your comment - I was on an old page. Thanks! I'll merge in your work.
bq. OverseerRolesTest is a known flakey test
Yeah, we should probably ignore it until something is done. It's failing on jenkins regularly and on my machine over the 50% of the time.
was (Author: markrmiller@gmail.com):
@sdavids - whoops - didn't see your comment - I was on an old page. Thanks! I'll merge in your work.
bq. OverseerRolesTest is a known flakey test
Yeah, we should probably ignore it until something is done. It's failing on jenkins regularly and on my machine over the 50% of the time.
> Improve error handling of remote queries (proxied requests)
> -----------------------------------------------------------
>
> Key: SOLR-5700
> URL: https://issues.apache.org/jira/browse/SOLR-5700
> Project: Solr
> Issue Type: Improvement
> Components: SolrCloud
> Reporter: Gregory Chanan
> Assignee: Mark Miller
> Fix For: 5.0, 4.7
>
> Attachments: SOLR-5700.patch, SOLR-5700.patch, SOLR-5700v2.patch
>
>
> The current remoteQuery code in SolrDispatchFilter yields error messages like the following:
> org.apache.solr.servlet.SolrDispatchFilter: null:org.apache.solr.common.SolrException: Error trying to proxy request for url: http://localhost:8983/solr/myCollection/update
> at org.apache.solr.servlet.SolrDispatchFilter.remoteQuery(SolrDispatchFilter.java:580)
> at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:288)
> at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:169)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.solr.servlet.ProxyUserFilter.doFilter(ProxyUserFilter.java:241)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.solr.servlet.SolrHadoopAuthenticationFilter$2.doFilter(SolrHadoopAuthenticationFilter.java:140)
> at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:384)
> at org.apache.solr.servlet.SolrHadoopAuthenticationFilter.doFilter(SolrHadoopAuthenticationFilter.java:145)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.solr.servlet.HostnameFilter.doFilter(HostnameFilter.java:86)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
> at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:861)
> at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:606)
> at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
> at java.lang.Thread.run(Thread.java:724)
> Caused by: java.io.IOException: Server returned HTTP response code: 401 for URL: http://search-testing-c4-secure-4.ent.cloudera.com:8983/solr/sentryCollection/update?stream.body=%3Cadd%3E%3Cdoc%3E%3Cfield+name%3D%22id%22%3E1383855038349doc1%3C%2Ffield%3E%3Cfield+name%3D%22description%22%3Efirst+test+document+1383855038349%3C%2Ffield%3E%3C%2Fdoc%3E%3C%2Fadd%3E&doAs=user1
> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
> at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
> at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
> at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
> at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1674)
> at sun.net.www.protocol.http.HttpURLConnection$6.run(HttpURLConnection.java:1672)
> at java.security.AccessController.doPrivileged(Native Method)
> at sun.net.www.protocol.http.HttpURLConnection.getChainedException(HttpURLConnection.java:1670)
> at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1243)
> at org.apache.solr.servlet.SolrDispatchFilter.remoteQuery(SolrDispatchFilter.java:567)
> ... 25 more
> Caused by: java.io.IOException: Server returned HTTP response code: 401 for URL: http://localhost:8983/solr/myCollection/update?stream.body=%3Cadd%3E%3Cdoc%3E%3Cfield+name%3D%22id%22%3E1383855038349doc1%3C%2Ffield%3E%3Cfield+name%3D%22description%22%3Efirst+test+document+1383855038349%3C%2Ffield%3E%3C%2Fdoc%3E%3C%2Fadd%3E&doAs=user1
> at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1625)
> at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:468)
> at org.apache.solr.servlet.SolrDispatchFilter.remoteQuery(SolrDispatchFilter.java:550)
> ... 25 more
> In this case, the request handler threw an exception, and all the user got back was an error code, no message. They would actually have to dig through the logs on the remote machine to the see the error.
> I tried for a bit to get the error message with HttpURLConnection, but wasn't successful. Instead, I used httpclient, like SolrServer uses. This works, as SolrServer already gives reasonable error messages.
> This approach of using httpclient has another advantage as well: because the httpclient is created via the HttpClientUtil in the same way as the other http clients, any configuration settings are automatically picked up. For example, I have an HttpClientConfigurer that I wrote to handle kerberos connections; with this approach, the forwarded requests just work with kerberos. With the old approach, I would have to modify the remoteQuery code to do kerberos-specific things.
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