[jira] [Commented] (IGNITE-8777) REST: metadata command failed on cluster of size 1.

["Dmitriy Pavlov (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IGNITE-8777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16565658#comment-16565658 ] 

Dmitriy Pavlov commented on IGNITE-8777:
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Hi [~Chandresh Pancholi], would you like to finalize contribution? 

I found ticket is PA state for a long time, so I will move it to Open.

Once you are ready for new review, please set PA again.

> REST: metadata command failed on cluster of size 1.
> ---------------------------------------------------
>
>                 Key: IGNITE-8777
>                 URL: https://issues.apache.org/jira/browse/IGNITE-8777
>             Project: Ignite
>          Issue Type: Improvement
>          Components: rest
>    Affects Versions: 2.5
>            Reporter: Alexey Kuznetsov
>            Assignee: Chandresh Pancholi
>            Priority: Major
>              Labels: newbie
>
> Start *only one *node.
> Execute REST command: http://localhost:8080/ignite?cmd=getorcreate&cacheName=myNewPartionedCache&backups=2
> Cache will be created.
> Execute http://localhost:8080/ignite?cmd=metadata&cacheName=myNewPartionedCache
> Error will be returned:  {“successStatus”:1,“error”:“Failed to handle request: [req=CACHE_METADATA, err=Failed to request meta data. myNewPartionedCache is not found]“,”response”:null,“sessionToken”:null}
> After some debug, I see in code GridCacheCommandHandler.MetadataTask#map:
> {code}
> ...
> for (int i = 1; i < subgrid.size(); i++) {
>  ....
> }
> if (map.isEmpty())
>                     throw new IgniteException("Failed to request meta data. " + cacheName + " is not found");
> ...
> {code}
> So, in case of cluster with only one node this code will throw exception.
> I guess the fix should be - just replace "int i = 1" with "int i = 0".



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