Andrew Purtell created HBASE-19424: -------------------------------------- Summary: Metrics servlet doesn't work Key: HBASE-19424 URL: https://issues.apache.org/jira/browse/HBASE-19424 Project: HBase Issue Type: Bug Affects Versions: 1.4.0 Reporter: Andrew Purtell Priority: Minor Fix For: 1.4.1, 1.5.0
In branch-1 and least we put up a servlet on "/metrics" that is Hadoop's MetricsServlet. However HBase users are expected to pick up metrics via "/jmx". We don't mention "/metrics" or link to it on the UI. If you attempt to access "/metrics" with head of branch-1 it errors out due to a NPE {noformat} 2017-12-04 16:06:37,403 ERROR [1874557409@qtp-1910896157-3] mortbay.log: /metrics java.lang.NullPointerException at org.apache.hadoop.http.HttpServer2.isInstrumentationAccessAllowed(HttpServer2.java:1049) at org.apache.hadoop.metrics.MetricsServlet.doGet(MetricsServlet.java:109) at javax.servlet.http.HttpServlet.service(HttpServlet.java:707) {noformat} -- This message was sent by Atlassian JIRA (v6.4.14#64029)