upadhyay-prashant opened a new pull request, #2618:
URL: https://github.com/apache/tinkerpop/pull/2618
CAUSE:
In some cases when credentials expire, or servers encounters a
blip and closes all connections. The driver gets close message on all
connections. While processing those close messages, the driver was
getting into race conditions, where in multiple threads were trying to
close connections and trying to update the connections object i.e. list
of connections in the pool. This was leading to uncaught exceptions and
stale connections in the pool. These connections are never cleanedup
post this.
FIX:
Iterate the connections list while creating the connectionPool Info.
Since the list used is copyOnWrite, the iterator API creates a clone
and uses that clone for referring the element. Thus providing thread
safe interface.
However the information provided by this iteration is a bit stale, but
this doesn't matter.
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