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https://issues.apache.org/jira/browse/TINKERPOP-2176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17012100#comment-17012100
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Stephen Mallette commented on TINKERPOP-2176:
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Consider TINKERPOP-2255 when implementing this one.
> 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: 3.4.0, 3.3.5
> Reporter: Divij Vaidya
> Priority: Major
>
> 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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