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Posted to dev@tinkerpop.apache.org by "Divij Vaidya (JIRA)" <ji...@apache.org> on 2019/03/08 23:21:00 UTC

[jira] [Created] (TINKERPOP-2176) Incorrect decision of host unavailable in Java client

Divij Vaidya created TINKERPOP-2176:
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             Summary: Incorrect decision of host unavailable in Java client
                 Key: TINKERPOP-2176
                 URL: https://issues.apache.org/jira/browse/TINKERPOP-2176
             Project: TinkerPop
          Issue Type: Bug
          Components: driver
    Affects Versions: 3.3.5, 3.4.0
            Reporter: Divij Vaidya


If a request is not able to acquire a connection from the connection pool for a particular duration, it will fail with a Timeout Exception and also mark the host as unreachable [1] which is not necessarily true. A request might not be able to get a connection from the pool because the pool configuration has been set to a very low number or all the connections are genuinely busy serving existing requests. It does not imply host being unreachable.

[1][https://github.com/apache/tinkerpop/blob/9e4078983bb41a66f17cd33d599168a8ec78295b/gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/ConnectionPool.java#L375]



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