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https://issues.apache.org/jira/browse/IGNITE-8777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16511013#comment-16511013
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ASF GitHub Bot commented on IGNITE-8777:
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GitHub user chandresh-pancholi opened a pull request:
https://github.com/apache/ignite/pull/4181
IGNITE-8777: REST: metadata command failed on cluster of size 1
Signed-off-by: Chandresh Pancholi <chandreshpancholi...@gmail.com>
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chandresh-pancholi/ignite master
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/ignite/pull/4181.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4181
----
commit 682ed08ca9980c8f267c85358bb2ee829b4b3553
Author: Chandresh Pancholi <chandreshpancholi@...>
Date: 2018-06-13T12:00:18Z
IGNITE-8777: REST: metadata command failed on cluster of size 1
Signed-off-by: Chandresh Pancholi <chandreshpancholi...@gmail.com>
----
> 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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