Resolution: SmarSense Error: Exception in thread "main" java.lang.IllegalArgumentException: Illegal group reference

[#1]

Found in version Ambari 2.4.2.0

Generation of SmartSense bundle fails with following error:

ERROR 2017-02-24 10:52:53,284 shell.py:95 - Execution of command returned 1. Exception in thread "main" java.lang.IllegalArgumentException: Illegal group reference
        at java.util.regex.Matcher.appendReplacement(Matcher.java:857)
        at java.util.regex.Matcher.replaceAll(Matcher.java:955)
        at java.lang.String.replaceAll(String.java:2223)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.handleApplyGroupPatternKeyValue(BundleAnonymizer.java:690)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyGroupPattern(BundleAnonymizer.java:673)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyPropertyRule(BundleAnonymizer.java:612)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyRules(BundleAnonymizer.java:393)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:291)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:259)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:224)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymize(BundleAnonymizer.java:160)
        at com.hortonworks.smartsense.anonymization.Main.run(Main.java:82)
        at com.hortonworks.smartsense.anonymization.Main.start(Main.java:210)
        at com.hortonworks.smartsense.anonymization.Main.main(Main.java:294)
ERROR 2017-02-24 10:52:53,284 anonymize.py:67 - Execution of script /usr/java/default/bin/java -Xmx2048m -Xms1024m -Dlog.file.name=anonymization.log -Djava.io.tmpdir=/hadoop/smartsense/hst-agent/data/tmp -cp :/etc/hst/conf/:/usr/hdp/share/hst/hst-common/lib/* com.hortonworks.smartsense.anonymization.Main  -m /hadoop/smartsense/hst-agent/data/tmp/master001.dev.company.com-a-00027129-c-00065260_comhdpdev_0_2017-02-24_10-52-04 -c /etc/hst/conf/hst-agent.ini failed
ERROR 2017-02-24 10:52:53,284 anonymize.py:68 - Execution of command returned 1. Exception in thread "main" java.lang.IllegalArgumentException: Illegal group reference
        at java.util.regex.Matcher.appendReplacement(Matcher.java:857)
        at java.util.regex.Matcher.replaceAll(Matcher.java:955)
        at java.lang.String.replaceAll(String.java:2223)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.handleApplyGroupPatternKeyValue(BundleAnonymizer.java:690)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyGroupPattern(BundleAnonymizer.java:673)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyPropertyRule(BundleAnonymizer.java:612)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.applyRules(BundleAnonymizer.java:393)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:291)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:259)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymizeFolder(BundleAnonymizer.java:224)
        at com.hortonworks.smartsense.anonymization.BundleAnonymizer.anonymize(BundleAnonymizer.java:160)
        at com.hortonworks.smartsense.anonymization.Main.run(Main.java:82)
        at com.hortonworks.smartsense.anonymization.Main.start(Main.java:210)
        at com.hortonworks.smartsense.anonymization.Main.main(Main.java:294)
ERROR 2017-02-24 10:52:53,285 AnonymizeBundleCommand.py:62 - Anonymization failed. Please check logs.
Traceback (most recent call last):
  File "/usr/hdp/share/hst/hst-agent/lib/hst_agent/command/AnonymizeBundleCommand.py", line 58, in execute
    context['bundle_dir'] = anonymizer.anonymize(bundle_dir)
  File "/usr/hdp/share/hst/hst-agent/lib/hst_agent/anonymize.py", line 69, in anonymize
    raise Exception("Anonymization failed.")
Exception: Anonymization failed.

Cause: A group Regex exception is happening when the constant REPLACE_PROPERTY_VALUE_PATTERN regex pattern is not able to properly group search the parameter patternStr;

Resolution for the above error:

Option1 (preferred):

Preferred way to upgrade is upgrade Ambari and follow post upgrade procedures as per hortonworks docs

NOTE: Make sure that current Ambari version is lower than 2.4.2.8-2

Option2:

1. Stop Smartsense from Ambari
2. Uninstall smartsense-hst rpm on all nodes 
     rpm -e smartsense-hst
3. Install smartsense-hst rpm on all nodes 
For Centos/Redhat 7:
     rpm -ivh http://private-repo-1.hortonworks.com/ambari/centos7/2.x/updates/2.4.2.8-2/smartsense/smartsense-hst...
For  Centos/Redhat 6:
     rpm -ivh http://private-repo-1.hortonworks.com/ambari/centos6/2.x/updates/2.4.2.8-2/smartsense/smartsense-hst...    
4. On Ambari Server host run 
    hst add-to-ambari
5. Restart Ambari Server
6. Delete SmartSense service from Ambari if already there
7. Add SmartSense service through Ambari's add service wizard

A great many thanks to @sheetal for providing the solution.

Thanks.