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https://issues.apache.org/jira/browse/SOLR-6179?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hoss Man updated SOLR-6179:
---------------------------
Description:
These messages are currently logged as WARNings, and should either be switched
to INFO level (or made more sophisticated so that it can tell when solr is
setup for managed resources but the data isn't available)...
{noformat}
2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
– No stored data found for /rest/managed
2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
– No registered observers for /rest/managed
{noformat}
Environment:
was:
These messages are currently logged as WARNings, and should be switched to INFO
level (or made more sophisticated so that it can tell when solr is setup for
managed resources but the data isn't available)
{noformat}
2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
– No stored data found for /rest/managed
2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
– No registered observers for /rest/managed
{noformat}
Summary: ManagedResource repeatedly logs warnings when not used (was:
ManagedResource should not log warnings if it's not used)
(fixed description - was in "enviornment" by mistake)
----
Part of the issue here is that "No stored data found for..." message is
actually fairly important it most cases -- if you are actively using managed
resources (for something like managed synonyms) this WARN log type message is
the only thing that will help you catch a possible situation where the storage
file got deleted out from under you inadvertantly.
This is really very similar to the way we currently log a warning on startup if
there is not "index" directory -- it's an exceptional enough situation that we
want to warn you about it so that you can find it in your logs later if things
aren't working as you expect -- but as soon as we log that warning we continue
with the assumption that it's expected and we should automatically create it
for you
The right solution here is probably:
* Anytime ManageResource sees that no storage exists for something it's
managing, it should immediately create an "empty" storage for it and log a WARN
along the lines of "No stored data found for /rest/foo/bar/yak .... creating
new empty storage"
** This will mean that as people upgrade from old versions of solr to new
versions of solr, they get this WARN exactly once for /rest/managed as the new
(empty file is created)
** If/when people add new managed analysis factories to their schema.xml, they
will likewise get a WARN once as empty storage files are created (even if they
restart several times before they PUT any stopwords/synonyms into these managed
resources)
* In our example configs, just like we ship pre-populated
{{_schema_analysis_stopwords_english.json}} and
{{_schema_analysis_synonyms_english.json}} files, we should ship a
"pre-populated" (ie: empty) {{_rest_managed.json}} file
** which would ensure that no new user, who starts fresh with the "current"
example configs, ever sees a warning about "No stored data found for
/rest/managed"
----
The "No registered observers for..." message seems like something that has no
business being a WARN, and should be switched to DEBUG or INFO -- but i may
just be missunderstanding the purpose of that message.
> ManagedResource repeatedly logs warnings when not used
> ------------------------------------------------------
>
> Key: SOLR-6179
> URL: https://issues.apache.org/jira/browse/SOLR-6179
> Project: Solr
> Issue Type: Bug
> Affects Versions: 4.8, 4.8.1
> Environment:
> Reporter: Hoss Man
> Assignee: Timothy Potter
>
> These messages are currently logged as WARNings, and should either be
> switched to INFO level (or made more sophisticated so that it can tell when
> solr is setup for managed resources but the data isn't available)...
> {noformat}
> 2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
> – No stored data found for /rest/managed
> 2788 [coreLoadExecutor-5-thread-1] WARN org.apache.solr.rest.ManagedResource
> – No registered observers for /rest/managed
> {noformat}
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