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https://issues.apache.org/jira/browse/GEODE-9718?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17427785#comment-17427785
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Dan Smith commented on GEODE-9718:
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I think maybe a better option might be to use a lock for the cluster
configuration. We can make the request to get the cluster config wait until the
update to the cluster config is completely applied.
> The region is not created on all servers if commands are run in parallel
> ------------------------------------------------------------------------
>
> Key: GEODE-9718
> URL: https://issues.apache.org/jira/browse/GEODE-9718
> Project: Geode
> Issue Type: Bug
> Reporter: Mario Kevo
> Priority: Major
> Labels: needsTriage
>
> We are using a system with a large number of servers.
> While starting all servers, in parallel, we create a region through gfsh.
> The problem is that on one of the servers region is not created.
> It is started after the "create region" command is started, so it will not
> get information to create a region on itself from the locator. Also, the
> cluster configuration doesn't have that information yet, so the server cannot
> read it from the received cluster configuration.
> So, the problem is in changing cluster configuration whilst servers are
> coming up.
> The solutions are:
> # Add to the documentation to not running commands that doing some changes
> on cluster configuration while the server is in starting phase.
> # Redesign all commands that can edit the cluster configuration to first
> wrote changes to the cluster config and then distribute the commands to all
> servers.
> The second solution can lead to some problems. When the "create region"
> command is executed it got all servers from the view and sends all of them to
> start creating a region with parameters specified in the command.
> The region creating is started on all servers and after it is finished, it
> is added to the cluster configuration. In case there are some problems with
> creating a region(wrong parameter used or something else) it will not create
> a region on the existing servers and will not write anything in a cluster
> configuration.
> In case we decide to change order, it will write in the cluster config
> before the command is successful, and then we should have some backup to
> rollback cluster configuration. Also, this will affects all commands that do
> changes in cluster config.
>
> Mail discussion: [Region is not created on one of the
> servers|https://markmail.org/message/q4zanaklz7osgx4j#query:+page:1+mid:q4zanaklz7osgx4j+state:results]
>
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