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https://issues.apache.org/jira/browse/IGNITE-8777?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chandresh Pancholi reassigned IGNITE-8777:
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Assignee: Chandresh Pancholi
> 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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