Urmi Mustafi created GOBBLIN-2037:
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Summary: Start DagActionMonitor functionality after its
Dependencies
Key: GOBBLIN-2037
URL: https://issues.apache.org/jira/browse/GOBBLIN-2037
Project: Apache Gobblin
Issue Type: Bug
Components: gobblin-service
Reporter: Urmi Mustafi
Assignee: Abhishek Tiwari
The {{DagActionStoreChangeMonitor}} cannot be started before the Flowgraph,
DagManager, and SpecCompiler are up and running. When the monitor is
initialized by Guice, it was previously also starting to load dagActions from
the store immediately to compile and process. There is a race condition created
where the actions can be loaded too quickly from the store and passed to the
specCompiler before it's ready. The SpecCompiler hangs waiting for the
flowGraph to load, causing startup to fail.
The solution is the bind the monitor in Guice but only enable processing of
actions after the GobblinServiceManager ensures other classes are ready to be
called by the DagActionStoreChangeMonitor.
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