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https://reviews.apache.org/r/10699/
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Review request for Flume.


Description
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This patch changes the behavior of the BucketPath.escapeString() function to 
only ever call clock.currentTimeMillis() once during an invocation of the 
method. This prevents a race condition that can cause unexpected results in the 
interpolated paths.


This addresses bug FLUME-2014.
    https://issues.apache.org/jira/browse/FLUME-2014


Diffs
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  flume-ng-core/src/main/java/org/apache/flume/formatter/output/BucketPath.java 
971c75c 
  
flume-ng-core/src/test/java/org/apache/flume/formatter/output/TestBucketPath.java
 9cfefc0 

Diff: https://reviews.apache.org/r/10699/diff/


Testing
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Added unit test for the previous condition. All tests pass.

Here is some output from running the new unit test without the patch:

Running org.apache.flume.formatter.output.TestBucketPath
Tests run: 6, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.87 sec <<< 
FAILURE!

Results :

Failed tests:   testDateRace(org.apache.flume.formatter.output.TestBucketPath): 
Race condition detected expected:<02:[5]0> but was:<02:[0]0>

Tests run: 6, Failures: 1, Errors: 0, Skipped: 0


Thanks,

Mike Percy

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