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https://issues.apache.org/jira/browse/SOLR-7130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14333469#comment-14333469
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Shalin Shekhar Mangar commented on SOLR-7130:
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bq. I don't think it is a good idea. We don't use it anywhere as of now and if
we use another transport mechanism it will be a problem
I am referring to the response header which is part of the response. Any
transport mechanism that we choose will likely have a responseHeader section.
bq. That is a rare case . It happened when a core went down completely (and the
node is still up).. We can afford to resend the request. Comparing the cost of
proxying a request to resending a request , we are not saving much
Okay but in that case we should change the following logging to INFO level
because it will flood the logs needlessly:
{code}
log.error("Request to collection {} failed due to ("+errorCode+
") {}, retry? "+retryCount, collection, rootCause.toString());
{code}
> Make stale state notification work without failing the requests
> ---------------------------------------------------------------
>
> Key: SOLR-7130
> URL: https://issues.apache.org/jira/browse/SOLR-7130
> Project: Solr
> Issue Type: Improvement
> Components: clients - java, SolrCloud, SolrJ
> Reporter: Shalin Shekhar Mangar
> Assignee: Noble Paul
> Fix For: Trunk, 5.1
>
> Attachments: SOLR-7130.patch
>
>
> I wasn't sure whether to label this a bug or an improvement.
> For collections with stateFormat=2, we now fail requests (because of stale
> state) which we didn't previously. The client having stale cached cluster
> state is not a sufficient reason to fail and retry the entire request because
> in most of such cases, the node receiving the request is still perfectly
> capable of returning a valid response (either from local replicas or remote
> ones).
> We should find a better way to notify clients that they have stale state.
> Perhaps we can modify the response and add a "routing" section instead of
> outright exception.
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