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From Alexandre Rafalovitch <>
Subject Re: Making Solr Indexing Errors Visible
Date Wed, 26 Sep 2018 20:57:51 GMT
The challenge here is to figure out exactly what you are doing,
because the original description could have been 10 different things.

1) You are using bin/post command (we just found this out)
2) You are indexing a bunch of files (what format? all same or different?)
3) You are indexing them into a Schema supposedly ready for those
files (which one?)
4) You think some of them are not in in Solr (how do you know that?
how do you know that some are? why do you not know _which_ of the
files are not indexed?)
5) You are asking whether the error message should have told you if
there is a problem with indexing (normally yes, but maybe there are
some edge cases).

I've put the questions in brackets. I would focus on looking at
questions in 4) first as they roughly bisect the problem. But other
things are important too.

I hope this helps,

On 26 September 2018 at 16:39, Terry Steichen <> wrote:
> Shawn,
> To the best of my knowledge, I'm not using SolrJ at all.  Just
> Solr-out-of-the-box.  In this case, if I understand you below, it
> "should indicate an error status"
> But it doesn't.
> Let me try to clarify a bit - I'm just using bin/post to index the files
> in a directory.  That indexing process produces a lengthy screen display
> of files that were indexed.  (I realize this isn't production-quality,
> but I'm not ready for production just yet, so that should be OK.)
> But no errors are shown (even though there have to be because the totals
> indexed is less than the directory totals).
> Are you saying I can't use post (to verify correct indexing), but that I
> have to write custom software to accomplish that?
> And that there's no solr variable I can define that will do a kind of
> "verbose" to show that?
> And that such errors will not show up in any of solr's log files?
> Hard to believe (but what is, is, I guess).
> Terry
> On 09/26/2018 03:49 PM, Shawn Heisey wrote:
>> On 9/26/2018 1:23 PM, Terry Steichen wrote:
>>> I'm pretty sure this was covered earlier.  But I can't find references
>>> to it.  The question is how to make indexing errors clear and obvious.
>> If there's an indexing error and you're NOT using the concurrent
>> client in SolrJ, the response that Solr returns should indicate an
>> error status.  ConcurrentUpdateSolrClient gets those errors and
>> swallows them so the calling program never knows they occurred.
>>> (I find that there are maybe 10% more files in a directory than end up
>>> in the index.  I presume they were indexing errors, but I have no idea
>>> which ones or what might have caused the error.)  As I recall, Solr's
>>> post tool doesn't give any errors when indexing.  I (vaguely) recall
>>> that there's a way (through the logs?) to overcome this and show the
>>> errors.  Or maybe it's that you have to do the indexing outside of Solr?
>> The simple post tool is not really meant for production use.  It is a
>> simple tool for interactive testing.
>> I don't see anything in SimplePostTool for changing the program's exit
>> status when an error is encountered during program operation.  If an
>> error is encountered during the upload, a message would be logged to
>> stderr, but you wouldn't be able to rely on the program's exit status
>> to indicate an error.  To get that, you will need to write the
>> indexing software.
>> Thanks,
>> Shawn

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