Ted Yu created HADOOP-13135:
-------------------------------
Summary: Encounter response code 500 when accessing /metrics
endpoint
Key: HADOOP-13135
URL: https://issues.apache.org/jira/browse/HADOOP-13135
Project: Hadoop Common
Issue Type: Bug
Affects Versions: 2.7.1
Reporter: Ted Yu
When accessing /metrics endpoint on hbase master through hadoop 2.7.1, I got:
{code}
HTTP ERROR 500
Problem accessing /metrics. Reason:
INTERNAL_SERVER_ERROR
Caused by:
java.lang.NullPointerException
at
org.apache.hadoop.http.HttpServer2.isInstrumentationAccessAllowed(HttpServer2.java:1029)
at
org.apache.hadoop.metrics.MetricsServlet.doGet(MetricsServlet.java:109)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
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)
{code}
[~ajisakaa] suggested that code 500 should be 404 (NOT FOUND).
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