Francois Saint-Jacques created ARROW-4765:
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             Summary: [JAVA][Flight] Memory leak
                 Key: ARROW-4765
                 URL: https://issues.apache.org/jira/browse/ARROW-4765
             Project: Apache Arrow
          Issue Type: Improvement
          Components: FlightRPC, Java
    Affects Versions: 0.12.1
            Reporter: Francois Saint-Jacques


There is a potential race issue when reclaiming the FlightServer.
{code:java}
[ERROR] ensureIndependentSteams(org.apache.arrow.flight.TestBackPressure) Time 
elapsed: 1.394 s <<< ERROR!
java.lang.IllegalStateException: 
Memory was leaked by query. Memory leaked: (131072)
Allocator(perf-server) 0/131072/589824/9223372036854775807 
(res/actual/peak/limit)
at 
org.apache.arrow.flight.TestBackPressure.ensureIndependentSteams(TestBackPressure.java:76)
{code}




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