Akash Shinde created IGNITE-13132:
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Summary: Countdown latched gets reinitialize to original value(4)
when one or more (but not all) node goes down.
Key: IGNITE-13132
URL: https://issues.apache.org/jira/browse/IGNITE-13132
Project: Ignite
Issue Type: Bug
Components: data structures
Reporter: Akash Shinde
We are using ignite's distributed countdownlatch to make sure that cache
loading is completed on all server nodes. We do this to make sure that our
kafka consumers starts only after cache loading is complete on all server
nodes. This is the basic criteria which needs to be fulfilled before starts
actual processing
We have 4 server nodes and countdownlatch is initialized to 4. We use
"cache.loadCache" method to start the cache loading. When each server completes
cache loading it reduces the count by 1 using countDown method. So when all the
nodes completes cache loading, the count reaches to zero. When this count
reaches to zero we start kafka consumers on all server nodes.
But we saw weird behavior in prod env. The 3 server nodes were shut down at
the same time. But 1 node is still alive. When this happened the count down was
reinitialized to original value i.e. 4. But I am not able to reproduce this in
dev env.
Note: Partiton loss were happened when three node gone down at same time.
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