[HDFS-14883] NPE when the second SNN is starting

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.1.1
• Fix Version/s: 3.2.2, 2.10.1, 3.3.1, 3.4.0
• Labels: multi-sbnn
• Assignee: Ranith Sardar
• Reporter: Ranith Sardar
• Created: 30/Sep/19 13:24
• Updated: 30/Jul/24 08:54
• Resolved: 30/Jul/24 08:54

Description

 

{{| WARN | qtp79782883-47 | /imagetransfer | ServletHandler.java:632
java.io.IOException: PutImage failed. java.lang.NullPointerException
at org.apache.hadoop.hdfs.server.namenode.ImageServlet.validateRequest(ImageServlet.java:198)
at org.apache.hadoop.hdfs.server.namenode.ImageServlet.doPut(ImageServlet.java:485)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848)
at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772)
at org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:644)}}

Issue Links

• is caused by: HDFS-6440 Support more than 2 NameNodes
• is fixed by: HDFS-15290 NPE in HttpServer during NameNode startup