Re: Change in behavior of CoreDescriptors

[Shefali Dubey]

Asking this question again.

From: Shefali Dubey 
Date: Monday, January 29, 2018 at 3:14 PM
To: "solr-user@lucene.apache.org" 
Subject: Change in behavior of CoreDescriptors

Hello,

I observed the following change on switching from solr verion 6.4.2 to 6.6.2:

In 6.6.2, in case of an init failure, SolrCores.getCoreDescriptor does not 
return the core. The core is transient in nature but was not present in 
transient core cache.
This was not the case in 6.4.2. I was getting the CoreDescriptor even in case 
of init failure.

Thanks,
Shefali

Re: Change in behavior of CoreDescriptors

[Shefali Dubey]

Thanks for your response.
CoreDescriptor is not present in TransientSolrCoreCacheDefault for a core that 
has init failure. Is that expected?

On 1/29/18, 4:35 PM, "Erick Erickson"  wrote:

Lots of that was reworked between those two versions.

I'm not clear what you expect here. If a core fails to initialize,
then what's the purpose of unloading it? It isn't there in the first
place. The coreDescriptor should still be available if you need that,
and can be used to load the core later if the init issue is fixed.

Best,
Erick

On Mon, Jan 29, 2018 at 3:14 PM, Shefali Dubey  wrote:
> Hello,
>
> I observed the following change on switching from solr verion 6.4.2 to 
6.6.2:
>
> In 6.6.2, in case of an init failure, SolrCores.getCoreDescriptor does 
not return the core. The core is transient in nature but was not present in 
transient core cache.
> This was not the case in 6.4.2. I was getting the CoreDescriptor even in 
case of init failure.
> As a result of described behavior, unload of such a core (one with init 
failures) does not work properly.
>
> Thanks,
> Shefali
>

Re: Change in behavior of CoreDescriptors

[Erick Erickson]

Lots of that was reworked between those two versions.

I'm not clear what you expect here. If a core fails to initialize,
then what's the purpose of unloading it? It isn't there in the first
place. The coreDescriptor should still be available if you need that,
and can be used to load the core later if the init issue is fixed.

Best,
Erick

On Mon, Jan 29, 2018 at 3:14 PM, Shefali Dubey  wrote:
> Hello,
>
> I observed the following change on switching from solr verion 6.4.2 to 6.6.2:
>
> In 6.6.2, in case of an init failure, SolrCores.getCoreDescriptor does not 
> return the core. The core is transient in nature but was not present in 
> transient core cache.
> This was not the case in 6.4.2. I was getting the CoreDescriptor even in case 
> of init failure.
> As a result of described behavior, unload of such a core (one with init 
> failures) does not work properly.
>
> Thanks,
> Shefali
>