[jira] [Created] (GOBBLIN-637) Create dag checkpoint dir on initialization to avoid NPE

[Sudarshan Vasudevan (JIRA)]

Sudarshan Vasudevan created GOBBLIN-637:
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             Summary: Create dag checkpoint dir on initialization to avoid NPE
                 Key: GOBBLIN-637
                 URL: https://issues.apache.org/jira/browse/GOBBLIN-637
             Project: Apache Gobblin
          Issue Type: Bug
          Components: gobblin-service
    Affects Versions: 0.14.0
            Reporter: Sudarshan Vasudevan
            Assignee: Sudarshan Vasudevan
             Fix For: 0.14.0


FSDagStateStore#getDags() throws a NPE if the dag checkpoint directory does not 
exist, since File#listFiles() returns null when the directory does not exist. 
The fix eagerly creates the checkpoint directory on instantiation of 
FSDagStateStore. 



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