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Ajeet Rai updated HBASE-25077: ------------------------------ Description: While testing with large data, it is observed that some time hbck page was not accessible and NPE was thrown in log. 【Test step】Excat Steps are not known. Observed this while executing below steps 1: Test data: 9K regions,~300 issues in my test setup 2: run hbck_chore and catalogjanitor_run multiple times 3: Also run balancer so that region movement is happening. 4: Observe that HBCK page not available 2020-09-21 20:05:31,706 WARN [qtp1698322791-94] server.HttpChannel: /hbck.jsp java.lang.NullPointerException at org.apache.hadoop.hbase.generated.master.hbck_jsp.formatServerName(hbck_jsp.java:37) at org.apache.hadoop.hbase.generated.master.hbck_jsp._jspService(hbck_jsp.java:144) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:844) was: While testing with large data, it is observed that some time hbck page was not accessible and NPE was thrown in log. 【Test step】Excat Steps are not known. Observed this while executing below steps 1: Test data: 9K regions,~300 issues in my test setup 2: run list inconsistency with run option 3: run hbck_chore and catalogjanitor_run multiple times 4: Also run balancer so that region movement is happening. 5: Observe that HBCK page not available 2020-09-21 20:05:31,706 WARN [qtp1698322791-94] server.HttpChannel: /hbck.jsp java.lang.NullPointerException at org.apache.hadoop.hbase.generated.master.hbck_jsp.formatServerName(hbck_jsp.java:37) at org.apache.hadoop.hbase.generated.master.hbck_jsp._jspService(hbck_jsp.java:144) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:844) > [HBCK2]hbck.jsp page loading fails, logs NPE in master log. > ----------------------------------------------------------- > > Key: HBASE-25077 > URL: https://issues.apache.org/jira/browse/HBASE-25077 > Project: HBase > Issue Type: Bug > Affects Versions: 2.2.3 > Reporter: Ajeet Rai > Assignee: Mohammad Arshad > Priority: Major > > While testing with large data, it is observed that some time hbck page was > not accessible and NPE was thrown in log. > > 【Test step】Excat Steps are not known. Observed this while executing below > steps > 1: Test data: 9K regions,~300 issues in my test setup > 2: run hbck_chore and catalogjanitor_run multiple times > 3: Also run balancer so that region movement is happening. > 4: Observe that HBCK page not available > > 2020-09-21 20:05:31,706 WARN [qtp1698322791-94] server.HttpChannel: /hbck.jsp > java.lang.NullPointerException > at > org.apache.hadoop.hbase.generated.master.hbck_jsp.formatServerName(hbck_jsp.java:37) > at > org.apache.hadoop.hbase.generated.master.hbck_jsp._jspService(hbck_jsp.java:144) > at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:111) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) > at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:844) -- This message was sent by Atlassian Jira (v8.3.4#803005)