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https://issues.apache.org/jira/browse/GEODE-7877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17062212#comment-17062212
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ASF subversion and git services commented on GEODE-7877:
--------------------------------------------------------
Commit e9a6b00d12f070c63d87dec7200ec4d12e60cd1d in geode's branch
refs/heads/feature/GEODE-7884 from Bruce Schuchardt
[ https://gitbox.apache.org/repos/asf?p=geode.git;h=e9a6b00 ]
GEODE-7877: deal with the static Version map in TcpClient (#4817)
* GEODE-7877: deal with the static Version map in TcpClient
The server-version map that tracks Locator versions is now an instance
variable instead of a static.
I looked into removing the map altogether but it's really needed for
rolling-upgrade purposes. When one locator is rolled to a new version
of Geode but another locator is still running the old version it's
essential that the new locator know that it's communicating with an old
locator.
* added check for socket being closed.
ConnectCommandWithSSLMultiKeyTest ran into a closed-socket exception in two
successive distributedTest runs.
> deal with the static Version map in TcpClient
> ---------------------------------------------
>
> Key: GEODE-7877
> URL: https://issues.apache.org/jira/browse/GEODE-7877
> Project: Geode
> Issue Type: Improvement
> Components: membership
> Reporter: Bruce J Schuchardt
> Assignee: Bruce J Schuchardt
> Priority: Major
> Fix For: 1.13.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> TcpClient has a cache of Locator Versions that it uses to avoid sending
> multiple VersionRequests to a Locator, each of which requires a new TCP/IP
> connection. This could, at the least, be an instance variable now that
> TcpClient has been converted from being a bunch of static methods into being
> an instantiate-able class.
> Caching the Versions isn't necessarily bad. If a Locator is upgraded to a
> newer Version it isn't going to communicate with the client using that
> Version - it will still serialize using the client's Version, and the client
> will use its own Version when serializing to the Locator.
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