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Posted to solr-user@lucene.apache.org by solr jay <so...@gmail.com> on 2009/07/02 03:24:39 UTC
solr health check
Hi,
I am looking at this piece of configuration in solrconfig.xml
<admin>
<defaultQuery>solr</defaultQuery>
<gettableFiles>
solrconfig.xml
schema.xml
</gettableFiles>
<pingQuery>q=solr&version=2.0&start=0&rows=0</pingQuery>
<!-- configure a healthcheck file for servers behind a loadbalancer
-->
<healthcheck type="file">server-enabled</healthcheck>
</admin>
It wasn't clear to me what 'server-enabled' means here. Is it a file name?
If it is file name, where the file should be?
I added <healthcheck type="file">server-enabled</healthcheck>and admin/ping
stopped working, which is good, but I couldn't make it work again, and admin
UI generate an exception. Anyone used this feature before?
Thanks,
J
HTTP ERROR: 500
PWC6033: Unable to compile class for JSP
PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
PWC6199: Generated servlet error:
Type mismatch: cannot convert from Logger to Logger
PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
PWC6199: Generated servlet error:
The method log(Level, String) is undefined for the type Logger
org.apache.jasper.JasperException: PWC6033: Unable to compile class for JSP
PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
PWC6199: Generated servlet error:
Type mismatch: cannot convert from Logger to Logger
PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
PWC6199: Generated servlet error:
The method log(Level, String) is undefined for the type Logger
at
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:94)
at
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:267)
at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:332)
at org.apache.jasper.compiler.Compiler.compile(Compiler.java:389)
at
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:579)
at
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
at
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:464)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:358)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:367)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
at
org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:273)
at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
at org.mortbay.jetty.Server.handle(Server.java:295)
at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:503)
at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:827)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:511)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:210)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:379)
at
org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
at
org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
RequestURI=/solr/admin/action.jsp
Re: solr health check
Posted by Koji Sekiguchi <ko...@r.email.ne.jp>.
solr jay wrote:
> Hi,
>
> I am looking at this piece of configuration in solrconfig.xml
>
> <admin>
> <defaultQuery>solr</defaultQuery>
> <gettableFiles>
> solrconfig.xml
> schema.xml
> </gettableFiles>
> <pingQuery>q=solr&version=2.0&start=0&rows=0</pingQuery>
>
> <!-- configure a healthcheck file for servers behind a loadbalancer
> -->
> <healthcheck type="file">server-enabled</healthcheck>
> </admin>
>
>
I've never used this feature before, but reading source code...
> It wasn't clear to me what 'server-enabled' means here. Is it a file name?
>
Yes, it is file name.
> If it is file name, where the file should be?
>
>
The file name should be absolute path or relative path from solr work
directory
(if you start solr from example directory, make "server-enabled" file in
example
directory).
> I added <healthcheck type="file">server-enabled</healthcheck>and admin/ping
> stopped working, which is good, but I couldn't make it work again, and admin
> UI generate an exception. Anyone used this feature before?
>
>
I don't understand why you are getting the follwoing error...
You should get "HTTP ERROR: 503 Service disabled" instead...
Koji
> Thanks,
>
> J
>
>
> HTTP ERROR: 500
>
> PWC6033: Unable to compile class for JSP
>
> PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
> PWC6199: Generated servlet error:
> Type mismatch: cannot convert from Logger to Logger
>
> PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
> PWC6199: Generated servlet error:
> The method log(Level, String) is undefined for the type Logger
>
>
>
> org.apache.jasper.JasperException: PWC6033: Unable to compile class for JSP
>
> PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
> PWC6199: Generated servlet error:
> Type mismatch: cannot convert from Logger to Logger
>
> PWC6197: An error occurred at line: 28 in the jsp file: /admin/action.jsp
> PWC6199: Generated servlet error:
> The method log(Level, String) is undefined for the type Logger
>
>
> at
> org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:94)
> at
> org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:267)
> at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:332)
> at org.apache.jasper.compiler.Compiler.compile(Compiler.java:389)
> at
> org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:579)
> at
> org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:344)
> at
> org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:464)
> at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:358)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:367)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:268)
> at org.mortbay.jetty.servlet.Dispatcher.forward(Dispatcher.java:126)
> at
> org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:273)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1089)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:211)
> at
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
> at org.mortbay.jetty.Server.handle(Server.java:295)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:503)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:827)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:511)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:210)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:379)
> at
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:226)
> at
> org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442)
> RequestURI=/solr/admin/action.jsp
>
>