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https://issues.apache.org/jira/browse/SOLR-13888?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16970257#comment-16970257
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Mark Robert Miller commented on SOLR-13888:
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I'll even give you more. I wish just telling the problems *WAS* all I had to do:
Some alias stuff makes cluster state updates fire twice in a row.
There is bad concurrency in a lot of spots, just spot check.
There is a lot of bad exception handling and interruption handling that are
actually very important.
There a lot of bad behavior in failure cases, if you make it better, fails get
easier to look at.
There is a lot of weird and off stuff in the collections api, because it's
trying to balance two worlds, its not well tests, and other things.
Our base layer zk stuff, like the mkpaths and retry stuff, can do weird.
Lots of times we dont handle session expiration.
I'll give you more too ....there is a lot more hours there. When will you start?
> SolrCloud 2
> -----------
>
> Key: SOLR-13888
> URL: https://issues.apache.org/jira/browse/SOLR-13888
> Project: Solr
> Issue Type: Task
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Mark Miller
> Assignee: Mark Miller
> Priority: Major
> Attachments: solrscreen.png
>
>
> As devs discuss dropping the SolrCloud name on the dev list, here is an issue
> titled SolrCloud 2.
> A couple times now I've pulled on the sweater thread that is our broken
> tests. It leads to one place - SolrCloud is sick and devs are adding spotty
> code on top of it at a rate that will lead to the system falling in on
> itself. As it is, it's a very slow, very inefficient, very unreliable, very
> buggy system.
> This is not why I am here. This is the opposite of why I am here.
> So please, let's stop. We can't build on that thing as it is.
>
> I need some time, I lost a lot of work at one point, the scope has expanded
> since I realized how problematic some things really are, but I have an
> alternative path that is not so duct tape and straw. As the building climbs,
> that foundation is going to kill us all.
>
> This i not about an architecture change - the architecture is fine. The
> implementation is broken and getting worse.
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