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https://issues.apache.org/jira/browse/HBASE-18263?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shibin Zhang updated HBASE-18263:
---------------------------------
    Status: Patch Available  (was: Open)

> Resolve NPE in backup Master UI when access to procedures.jsp
> -------------------------------------------------------------
>
>                 Key: HBASE-18263
>                 URL: https://issues.apache.org/jira/browse/HBASE-18263
>             Project: HBase
>          Issue Type: Bug
>          Components: UI
>    Affects Versions: 2.0.0-alpha-1, 1.2.0
>            Reporter: Shibin Zhang
>            Priority: Trivial
>         Attachments: HBASE-18263.patch
>
>
> When accessing procedures.jsp ,the  NPE comes in backup master UI:
> HTTP ERROR 500
> Problem accessing /procedures.jsp. Reason:
>     INTERNAL_SERVER_ERROR
> Caused by:
> java.lang.NullPointerException
>       at 
> org.apache.hadoop.hbase.generated.master.procedures_jsp._jspService(procedures_jsp.java:67)
>       at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:98)
>       at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
>       at 
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1221)
>       at 
> org.apache.hadoop.hbase.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:113)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.hadoop.hbase.http.ClickjackingPreventionFilter.doFilter(ClickjackingPreventionFilter.java:48)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.hadoop.hbase.http.HttpServer$QuotingInputFilter.doFilter(HttpServer.java:1354)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.apache.hadoop.hbase.http.NoCacheFilter.doFilter(NoCacheFilter.java:49)
>       at 
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
>       at 
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> In server ,only the active master initialize procedureStore in HMaster.
>  so ,i think it will be better to remove procedures.jsp link in backup Master 
> UI



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