Re: Upgrading from 6.5.0 to 8.4.1

2020-02-27 Thread Erick Erickson 
Despite deleting all the docs, what I suspect is that you still have segments 
that have no live docs in them, but still preserve the 6x marker.

That said, what’s the point of the 7.7.2 step? Why not just index once into a 
pristine 8.4.1 cluster? You could even do this on a few machines, serving no 
traffic, and when you were satisfied repurpose your current machines by 
installing Solr 8.4.1 on them and using ADDREPLICA to build out your cluster.

Oh, and I strongly recommend that you do _not_ simply change the 
LuceneMatchVersion and reuse your current config. Please start with a new 
configset and port just the changes from your 6x config to them.

Best,
Erick

> On Feb 27, 2020, at 8:02 AM, Pavel Polivka  wrote:
> 
> Hello,
> 
> I am doing upgrade of SolrCloud cluster from 6.5.0 to 8.4.1.
> 
> My process is:
> 
> Upgrade to 7.7.2.
> Reconfigure my solrconfig to have  
> 7.7.2, reload collections.
> Delete all docs in all collections and index them again.
> 
> Upgrade to 8.4.1.
> This step always fails for me with message in logs saying that the index 
> format is probably created by 6.x version.
> My thinking is that the reindex I do in 7.7.2 is not enough.
> 
> Is there a way to check in what format my index is?
> 
> Any ideas if I am doing anything wrong?
> 
> 
> Thanks.
> 
> 
> Pavel Polivka

Re: Upgrading from 6.5.0 to 8.4.1

2020-02-27 Thread Jörn Franke 
You did a reload and not a reindex? 
Probably the best is to delete the collection fully, create it new and index 
then .

> Am 27.02.2020 um 14:02 schrieb Pavel Polivka :
> 
> Hello,
> 
> I am doing upgrade of SolrCloud cluster from 6.5.0 to 8.4.1.
> 
> My process is:
> 
> Upgrade to 7.7.2.
> Reconfigure my solrconfig to have  
> 7.7.2, reload collections.
> Delete all docs in all collections and index them again.
> 
> Upgrade to 8.4.1.
> This step always fails for me with message in logs saying that the index 
> format is probably created by 6.x version.
> My thinking is that the reindex I do in 7.7.2 is not enough.
> 
> Is there a way to check in what format my index is?
> 
> Any ideas if I am doing anything wrong?
> 
> 
> Thanks.
> 
> 
> Pavel Polivka

Upgrading from 6.5.0 to 8.4.1

2020-02-27 Thread Pavel Polivka 
Hello,

I am doing upgrade of SolrCloud cluster from 6.5.0 to 8.4.1.

My process is:

Upgrade to 7.7.2.
Reconfigure my solrconfig to have  
7.7.2, reload collections.
Delete all docs in all collections and index them again.

Upgrade to 8.4.1.
This step always fails for me with message in logs saying that the index format 
is probably created by 6.x version.
My thinking is that the reindex I do in 7.7.2 is not enough.

Is there a way to check in what format my index is?

Any ideas if I am doing anything wrong?


Thanks.


Pavel Polivka