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https://issues.apache.org/jira/browse/SOLR-7642?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16646777#comment-16646777
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Shawn Heisey commented on SOLR-7642:
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Catching up on email and saw issue updates for this.
bq. So how about we auto-create the chroot only if it == /solr.
I really like this idea. A chroot of /solr is very unlikely to be a typo, and
probably will be what a sizable majority of users will want. So if that exact
text is the chroot and it doesn't exist, we go ahead and create it. We can
discuss whether to make it case-insensitive, so /Solr or /SOLR is also
auto-created. If any other string (like /solr7 or /solrdev) gets used, we can
require manual creation, and have a meaningful error in the log. [~thelabdude]
already indicated that the existing error is not ambiguous, but we can probably
improve it by telling the user they will have to manually create the chroot.
> Should launching Solr in cloud mode using a ZooKeeper chroot create the
> chroot znode if it doesn't exist?
> ---------------------------------------------------------------------------------------------------------
>
> Key: SOLR-7642
> URL: https://issues.apache.org/jira/browse/SOLR-7642
> Project: Solr
> Issue Type: Improvement
> Reporter: Timothy Potter
> Priority: Minor
> Attachments: SOLR-7642.patch, SOLR-7642.patch,
> SOLR-7642_tag_7.5.0.patch
>
>
> If you launch Solr for the first time in cloud mode using a ZooKeeper
> connection string that includes a chroot leads to the following
> initialization error:
> {code}
> ERROR - 2015-06-05 17:15:50.410; [ ] org.apache.solr.common.SolrException;
> null:org.apache.solr.common.cloud.ZooKeeperException: A chroot was specified
> in ZkHost but the znode doesn't exist. localhost:2181/lan
> at
> org.apache.solr.core.ZkContainer.initZooKeeper(ZkContainer.java:113)
> at org.apache.solr.core.CoreContainer.load(CoreContainer.java:339)
> at
> org.apache.solr.servlet.SolrDispatchFilter.createCoreContainer(SolrDispatchFilter.java:140)
> at
> org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java:110)
> at
> org.eclipse.jetty.servlet.FilterHolder.initialize(FilterHolder.java:138)
> at
> org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:852)
> at
> org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:298)
> at
> org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1349)
> at
> org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1342)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
> at
> org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:505)
> {code}
> The work-around for this is to use the scripts/cloud-scripts/zkcli.sh script
> to create the chroot znode (bootstrap action does this).
> I'm wondering if we shouldn't just create the znode if it doesn't exist? Or
> is that some violation of using a chroot?
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