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From "Lars George (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13777) Table fragmentation display triggers NPE on master status page
Date Tue, 26 May 2015 14:24:18 GMT
Lars George created HBASE-13777:

             Summary: Table fragmentation display triggers NPE on master status page
                 Key: HBASE-13777
                 URL: https://issues.apache.org/jira/browse/HBASE-13777
             Project: HBase
          Issue Type: Bug
          Components: UI
    Affects Versions: 1.1.0
            Reporter: Lars George

Steps to reproduce:

- Enable UI support for Fragmentation


Make sure to restart HBase.

- Create NSes and table

hbase(main):004:0> create_namespace 'testqauat'
0 row(s) in 0.0370 seconds

hbase(main):005:0> create_namespace 'financedept'
0 row(s) in 0.0100 seconds

hbase(main):006:0> create_namespace 'engdept'
0 row(s) in 0.0090 seconds

hbase(main):007:0> create 'testqauat:testtable', 'cf1'
0 row(s) in 1.2590 seconds

=> Hbase::Table - testqauat:testtable
hbase(main):008:0> for i in 'a'..'z' do for j in 'a'..'z' do put 'testqauat:testtable',
"row-#{i}#{j}", "cf1:#{j}", "#{j}" end end

- Reload the master UI page and you get:


Problem accessing /master-status. Reason:

Caused by:

	at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.__jamon_innerUnit__userTables(MasterStatusTmplImpl.java:685)
	at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmplImpl.renderNoFlush(MasterStatusTmplImpl.java:268)
	at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.renderNoFlush(MasterStatusTmpl.java:377)
	at org.apache.hadoop.hbase.tmpl.master.MasterStatusTmpl.render(MasterStatusTmpl.java:368)
	at org.apache.hadoop.hbase.master.MasterStatusServlet.doGet(MasterStatusServlet.java:81)

Note that the table.jsp page works fine, just the master page fails.

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