Gus Heck created SOLR-12938:
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Summary: ClusterStatus should not spew an exception trace if it
gets an alias name
Key: SOLR-12938
URL: https://issues.apache.org/jira/browse/SOLR-12938
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Affects Versions: 7.5
Reporter: Gus Heck
This has been a lingering irritant in debugging tests for time routed aliases,
previously mentioned in SOLR-11949 and can be seen frequently in logs attached
to SOLR-12948. Basically what happens is for one reason or another cluster
status is called on an alias rather than a collection and this is treated
identically to a collection name that doesn't exist.
This also has lead this bit of lovely exception message parsing in
HttpClusteStateProvider.java
{code:java}
} catch (SolrServerException | RemoteSolrException | IOException e) {
if (e.getMessage().contains(collection + " not found")) {
// Cluster state for the given collection was not found.
// Lets fetch/update our aliases:
getAliases(true);
return null;
}
log.warn("Attempt to fetch cluster state from " +
Utils.getBaseUrlForNodeName(nodeName, urlScheme) + " failed.", e);
}
{code}
Cluster status is already handled in the case of no collection name provided by
returning status on all collections. It would make more sense if this command
returned status on the component collections for the alias.
If that turns out to be difficult or cause too many problems this should at
least be downgraded to a non-stack trace warning message since this situation
does not represent a failure of the system. The error/stack should of course be
retained if neither a collection nor an alias exist.
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