[AMBARI-21706] Fix exception messages whenever empty host list is passed in predicate.

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.5.2
• Fix Version/s: 2.6.0
• Component/s: ambari-server
• Assignee: Aravindan Vijayan
• Reporter: Aravindan Vijayan
• Created: 10/Aug/17 23:13
• Updated: 11/Aug/17 20:00
• Resolved: 11/Aug/17 19:05

Description

Cluster installation stuck on Customize Services Page and wasn't loaded even after 4000 seconds waiting

ambari-server.log shows:

10 Aug 2017 09:48:08,356  INFO [pool-18-thread-1] AmbariMetricSinkImpl:95 - No clusters configured.
10 Aug 2017 09:49:17,123 ERROR [ambari-client-thread-593] QueryParser:115 - Lowercase host_name value in expression failed with error:java.lang.NullPointerException
10 Aug 2017 09:49:17,125 ERROR [ambari-client-thread-593] Request:147 - Unable to compile query predicate: IN operator is missing a required right oper
and.
org.apache.ambari.server.api.predicate.InvalidQueryException: IN operator is missing a required right operand.
        at org.apache.ambari.server.api.predicate.operators.InOperator.toPredicate(InOperator.java:50)
        at org.apache.ambari.server.api.predicate.expressions.RelationalExpression.toPredicate(RelationalExpression.java:43)
        at org.apache.ambari.server.api.predicate.QueryParser.parse(QueryParser.java:99)
        at org.apache.ambari.server.api.predicate.PredicateCompiler.compile(PredicateCompiler.java:62)
        at org.apache.ambari.server.api.services.BaseRequest.parseQueryPredicate(BaseRequest.java:344)
        at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:143)

10 Aug 2017 09:49:17,126  WARN [ambari-client-thread-597] AbstractResourceProvider:134 - Error occurred during preparation of stack advisor request
java.lang.ClassCastException: java.util.LinkedHashSet cannot be cast to java.util.List
        at org.apache.ambari.server.controller.internal.StackAdvisorResourceProvider.prepareStackAdvisorRequest(StackAdvisorResourceProvider.java:110)
        at org.apache.ambari.server.controller.internal.RecommendationResourceProvider.createResources(RecommendationResourceProvider.java:88)
        at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:298)
        at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:97)
        at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:37)
        at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:73)
        at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:144)

Issue Links

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