question Re: hbase master failed to start after disabling hbase plugin for ranger in Archives of Support Questions (Read Only)

hbase master failed to start after disabling hbase plugin for ranger

garunkumar85 — Sat, 23 Jul 2016 02:58:20 GMT

we disabled hbase plugin for ranger and restarted the Hbase but hbase master failed to restart.

Tried the solution mentioned in one of the post to restart HDFS, YARN and HBASE...nothing works:(

error message:

016-07-22 15:36:58,585 FATAL [RBCDHADA112:60000.activeMasterManager] master.HMaster: Unhandled exception. Starting shutdown . org.apache.hadoop.security.AccessControlException: Permission denied: user=hbase, access=READ, inode="/apps/hbase/data/data/ hbase/meta/.tabledesc/.tableinfo.0000000002":hdfs:hdfs:-rw-r----- at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.check(FSPermissionChecker.java:319) at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:219) at org.apache.hadoop.hdfs.server.namenode.FSPermissionChecker.checkPermission(FSPermissionChecker.java:190) at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1771) at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPermission(FSDirectory.java:1755) at org.apache.hadoop.hdfs.server.namenode.FSDirectory.checkPathAccess(FSDirectory.java:1729) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInt(FSNamesystem.java:1823) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1792) at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocations(FSNamesystem.java:1705) at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.getBlockLocations(NameNodeRpcServer.java:588) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolServerSideTranslatorPB.getBlockLocations(ClientNamenodePr otocolServerSideTranslatorPB.java:365) at org.apache.hadoop.hdfs.protocol.proto.ClientNamenodeProtocolProtos$ClientNamenodeProtocol$2.callBlockingMethod(Cl

Re: hbase master failed to start after disabling hbase plugin for ranger

jyadav — Sat, 23 Jul 2016 03:11:44 GMT

Hi @AR

Firstly please check if Hbase still has XaSecureAuthorization Coprocessor conf inside hbase-site.xml. Look for below properties. If its there then kindly remove it from through UI and restart the Hbase services and then check if underlining HDFS has correct permsiion and see if that resolve the issue

hbase.coprocessor.master.classes

hbase.coprocessor.region.classes

Re: hbase master failed to start after disabling hbase plugin for ranger

garunkumar85 — Sat, 23 Jul 2016 03:15:02 GMT

Looks like after you disable the hbase plugin for ranger, the owner for /data/apps/data is HDFS is not getting changed to hbase for ACL fallback to work. so I changed the owner to hbase and it worked

Re: hbase master failed to start after disabling hbase plugin for ranger

garunkumar85 — Sat, 23 Jul 2016 03:17:02 GMT

I disabled the hbase plugin and ambari prompted with the above classed and restarted it didnt work. please see below the steps I did. Thanks Yadav for your reply.

Re: hbase master failed to start after disabling hbase plugin for ranger

jyadav — Sat, 23 Jul 2016 03:21:15 GMT

Ohh great, may be my updated answer didn't reflected one time 🙂 Anyway I have accepted your answer. Thanks for updating.