Allow customization of handling transient failures

[aravindanr]

No description provided.

[codecov]

Codecov Report

Merging #1908 into dev will decrease coverage by 0.10%.
The diff coverage is 100.00%.

@@             Coverage Diff              @@
##                dev    #1908      +/-   ##
============================================
- Coverage     65.06%   64.96%   -0.11%     
  Complexity     3895     3895              
============================================
  Files           301      301              
  Lines         18482    18483       +1     
  Branches       1684     1684              
============================================
- Hits          12026    12008      -18     
- Misses         5626     5645      +19     
  Partials        830      830              

Impacted Files	Coverage Δ	Complexity Δ
...ix/conductor/core/events/SimpleEventProcessor.java	69.11% <100.00%> (+0.22%)	27.00 <1.00> (+1.00)
...ductor/dao/cassandra/CassandraEventHandlerDAO.java	65.78% <0.00%> (-10.53%)	15.00% <0.00%> (ø%)
.../com/netflix/conductor/dao/mysql/MySQLBaseDAO.java	67.04% <0.00%> (-4.55%)	17.00% <0.00%> (-2.00%)
.../conductor/dao/cassandra/CassandraMetadataDAO.java	55.44% <0.00%> (-4.15%)	25.00% <0.00%> (ø%)
...e/execution/tasks/SystemTaskWorkerCoordinator.java	83.33% <0.00%> (+2.08%)	18.00% <0.00%> (+1.00%)

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[coveralls]

Pull Request Test Coverage Report for Build 4629

• 3 of 3 (100.0%) changed or added relevant lines in 1 file are covered.
• 19 unchanged lines in 3 files lost coverage.
• Overall coverage decreased (-0.1%) to 69.491%

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Files with Coverage Reduction	New Missed Lines	%
mysql-persistence/src/main/java/com/netflix/conductor/dao/mysql/MySQLBaseDAO.java	3	69.32%
cassandra-persistence/src/main/java/com/netflix/conductor/dao/cassandra/CassandraEventHandlerDAO.java	8	68.42%
cassandra-persistence/src/main/java/com/netflix/conductor/dao/cassandra/CassandraMetadataDAO.java	8	56.48%

Totals
Change from base Build 4599:	-0.1%
Covered Lines:	12844
Relevant Lines:	18483

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💛 - Coveralls