[HBASE-24019] Correct exception messages for table null and namespace unavailable.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 2.3.0, 2.1.10, 2.2.5
• Hadoop Flags: Reviewed
• Assignee: Mohammad Arshad
• Reporter: Mohammad Arshad
• Created: 19/Mar/20 18:04
• Updated: 14/Jul/20 21:32
• Resolved: 21/Mar/20 15:13

Description

Exception message for following two scenarios should be corrected. 

1. Change message to "The list of tables cannot be null." in below code

@Override
  public void moveTables(Set<TableName> tables, String targetGroup) throws IOException {
    if (tables == null) {
      throw new ConstraintException("The list of servers cannot be null.");
    }

2. Change the message to "Region server group "group" does not exist" in below code.

public void preCreateNamespace(ObserverContext<MasterCoprocessorEnvironment> ctx,
                                 NamespaceDescriptor ns) throws IOException {
    String group = ns.getConfigurationValue(RSGroupInfo.NAMESPACE_DESC_PROP_GROUP);
    if(group != null && groupAdminServer.getRSGroupInfo(group) == null) {
      throw new ConstraintException("Region server group "+group+" does not exit");
    }
  }

 

Issue Links

• links to: GitHub Pull Request #1312