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Posted to dev@tinkerpop.apache.org by "Lyndon Bauto (Jira)" <ji...@apache.org> on 2022/06/07 23:22:00 UTC
[jira] [Closed] (TINKERPOP-2740) first request suspend more than 9s when using gremlin-java-driver
[ https://issues.apache.org/jira/browse/TINKERPOP-2740?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lyndon Bauto closed TINKERPOP-2740.
-----------------------------------
Resolution: Fixed
> first request suspend more than 9s when using gremlin-java-driver
> -----------------------------------------------------------------
>
> Key: TINKERPOP-2740
> URL: https://issues.apache.org/jira/browse/TINKERPOP-2740
> Project: TinkerPop
> Issue Type: Improvement
> Components: driver
> Affects Versions: 3.4.3, 3.6.0, 3.5.3
> Reporter: Stark Arya
> Assignee: Lyndon Bauto
> Priority: Critical
> Fix For: 3.6.1, 3.5.4
>
>
> when user use gremlin-driver in private cloud environment,
> In AUTHENTICATE rsp func, client need reverse name lookup through DNS, which will take more than 9s in certain env; the calling code slice:
>
> {code:java}
> Handler.GremlinSaslAuthenticationHandler.channelRead0
> saslClient.set(this.saslClient(this.getHostName(channelHandlerContext)));
>
> private String getHostName(final ChannelHandlerContext channelHandlerContext) {
> return((InetSocketAddress)channelHandlerContext.channel().remoteAddress()).getAddress().getCanonicalHostName();
> }
> {code}
> there are many talks about this talks about this question.
> [https://www.thecodingforums.com/threads/very-slow-ssl-connection-from-win-to-linux.147274/#post-2959030]
> [https://stackoverflow.com/questions/3193936/how-to-disable-javas-ssl-reverse-dns-lookup]
>
> I think we can rewrite the getHostName like this(use getHostAddress):
> {code:java}
> private String getHostName(final ChannelHandlerContext channelHandlerContext) {
> return ((InetSocketAddress)channelHandlerContext.channel().remoteAddress()).getAddress().getHostAddress();
> } {code}
> all versions seed affected
>
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