[AMBARI-22693] UpgradeUserKerberosDescriptor is not executed during stack upgrade due to missing target stack data

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.6.0, 2.6.1
• Fix Version/s: 2.6.2
• Component/s: ambari-server
• Assignee: Robert Levas
• Reporter: Robert Levas
• Created: 22/Dec/17 20:25
• Updated: 02/Jan/18 17:51
• Resolved: 02/Jan/18 17:21

Description

UpgradeUserKerberosDescriptor is not executed during stack upgrade due to missing target stack data.

Steps to reproduce

1. Deploy cluster with Ambari version 2.6.0 and HDP version 2.4
   • Storm should be installed to guarantee an error
2. Do Express upgrade to HDP version 2.6
3. Regenerate Keytabs.

Upon restarting Storm the following error is encountered

Exception in thread "main" java.lang.ExceptionInInitializerError
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at clojure.lang.RT.classForName(RT.java:2154)
	at clojure.lang.RT.classForName(RT.java:2163)
	at clojure.lang.RT.loadClassForName(RT.java:2182)
	at clojure.lang.RT.load(RT.java:436)
	at clojure.lang.RT.load(RT.java:412)
	at clojure.core$load$fn__5448.invoke(core.clj:5866)
	at clojure.core$load.doInvoke(core.clj:5865)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.core$load_one.invoke(core.clj:5671)
	at clojure.core$load_lib$fn__5397.invoke(core.clj:5711)
	at clojure.core$load_lib.doInvoke(core.clj:5710)
	at clojure.lang.RestFn.applyTo(RestFn.java:142)
	at clojure.core$apply.invoke(core.clj:632)
	at clojure.core$load_libs.doInvoke(core.clj:5749)
	at clojure.lang.RestFn.applyTo(RestFn.java:137)
	at clojure.core$apply.invoke(core.clj:632)
	at clojure.core$require.doInvoke(core.clj:5832)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at org.apache.storm.daemon.nimbus$loading__5340__auto____982.invoke(nimbus.clj:16)
	at org.apache.storm.daemon.nimbus__init.load(Unknown Source)
	at org.apache.storm.daemon.nimbus__init.<clinit>(Unknown Source)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:348)
	at clojure.lang.RT.classForName(RT.java:2154)
	at clojure.lang.RT.classForName(RT.java:2163)
	at clojure.lang.RT.loadClassForName(RT.java:2182)
	at clojure.lang.RT.load(RT.java:436)
	at clojure.lang.RT.load(RT.java:412)
	at clojure.core$load$fn__5448.invoke(core.clj:5866)
	at clojure.core$load.doInvoke(core.clj:5865)
	at clojure.lang.RestFn.invoke(RestFn.java:408)
	at clojure.lang.Var.invoke(Var.java:379)
	at org.apache.storm.daemon.nimbus.<clinit>(Unknown Source)
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException: backtype.storm.security.auth.KerberosPrincipalToLocal
	at org.apache.storm.security.auth.AuthUtils.GetPrincipalToLocalPlugin(AuthUtils.java:125)
	at org.apache.storm.security.auth.authorizer.ImpersonationAuthorizer.prepare(ImpersonationAuthorizer.java:54)
	at org.apache.storm.daemon.common$mk_authorization_handler.invoke(common.clj:417)
	at org.apache.storm.ui.core__init.load(Unknown Source)
	at org.apache.storm.ui.core__init.<clinit>(Unknown Source)
	... 35 more
Caused by: java.lang.ClassNotFoundException: backtype.storm.security.auth.KerberosPrincipalToLocal
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at org.apache.storm.security.auth.AuthUtils.GetPrincipalToLocalPlugin(AuthUtils.java:121)
	... 39 more

Cause
In the following code snip, targetStackID is {null}}:

org/apache/ambari/server/serveraction/upgrades/UpgradeUserKerberosDescriptor.java:103

        StackId targetStackId = getStackIdFromCommandParams(KeyNames.TARGET_STACK);

This causes the logic in UpgradeUserKerberosDescriptor to be skipped.

Solution
Change the code snip from above to

org/apache/ambari/server/serveraction/upgrades/UpgradeUserKerberosDescriptor.java:103

        StackId targetStackId = cluster.getDesiredStackVersion();

NOTE: This has already been fixed in the trunk (Ambari 3.0.0).

Issue Links

• links to: ReviewBoard