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https://issues.apache.org/jira/browse/TINKERPOP-2445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17235800#comment-17235800
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Divij Vaidya commented on TINKERPOP-2445:
-----------------------------------------
The problem is not with client initialization. The problem is with
`shutdownGracefully()` method used here
[https://github.com/apache/tinkerpop/blob/3.4-dev/gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/Cluster.java]
This method by default waits for a "quiet period" of 2s before proceeding with
the shutdown. Thus, a client initialization and shutdown will always take at
least 2s.
> Speed up client initialization
> ------------------------------
>
> Key: TINKERPOP-2445
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2445
> Project: TinkerPop
> Issue Type: Improvement
> Components: driver
> Affects Versions: 3.5.0, 3.4.8
> Reporter: Divij Vaidya
> Priority: Minor
> Labels: breaking
> Attachments: screenshot-1.png
>
>
> The current Java client has a lot of initialization overhead. Some of the
> things we could do to trim the fat are:
> 1. Parallelize the connection creation inside a connection pool, i.e. make
> [this for
> loop|https://github.com/apache/tinkerpop/blob/3.4-dev/gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/ConnectionPool.java]
> parallel.
> 2. Do not create a bootstrap [for every
> connection|https://github.com/apache/tinkerpop/blob/3.4-dev/gremlin-driver/src/main/java/org/apache/tinkerpop/gremlin/driver/Connection.java#L111].
> A single bootstrap could be reused.
> 3. Remove SASL Handler from the pipeline after negotiation is complete for a
> connection.
> 4. Do not initialize SASL Handler if not required.
> As part of this task, we should profile the start-up time and identify other
> places where we could optimize the start-up time.
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