Exceptions in solr log

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Exceptions in solr log

Akreeti Agarwal
Hi All,

Please help me with these exceptions and their workarounds:

1. org.apache.solr.common.SolrException: org.apache.solr.search.SyntaxError: Cannot parse
2. o.a.s.h.IndexFetcher No files to download for index generation: 1394327
3. o.a.s.h.a.LukeRequestHandler Error getting file length for [segments_b] (this one is warning as discussed)

I am getting these errors always in my solr logs, what can be the reason behind them and how should I resolve it.


Thanks & Regards,
Akreeti Agarwal
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Re: Exceptions in solr log

Erick Erickson
1> an incorrectly formed query has been sent to Solr. This is just a syntax error in the query.
2> Not sure about that one.
3> Older versions of Solr had a bogus error that would be generated by the admin UI, see: https://issues.apache.org/jira/browse/SOLR-8793

In future, it would help to see both the Solr version you use and more of the stack traces, particularly the “caused by” sections.

Best,
Erick

> On Dec 27, 2019, at 12:20 AM, Akreeti Agarwal <[hidden email]> wrote:
>
> Hi All,
>
> Please help me with these exceptions and their workarounds:
>
> 1. org.apache.solr.common.SolrException: org.apache.solr.search.SyntaxError: Cannot parse
> 2. o.a.s.h.IndexFetcher No files to download for index generation: 1394327
> 3. o.a.s.h.a.LukeRequestHandler Error getting file length for [segments_b] (this one is warning as discussed)
>
> I am getting these errors always in my solr logs, what can be the reason behind them and how should I resolve it.
>
>
> Thanks & Regards,
> Akreeti Agarwal
> ::DISCLAIMER::
> ________________________________
> The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. E-mail transmission is not guaranteed to be secure or error-free as information could be intercepted, corrupted, lost, destroyed, arrive late or incomplete, or may contain viruses in transmission. The e mail and its contents (with or without referred errors) shall therefore not attach any liability on the originator or HCL or its affiliates. Views or opinions, if any, presented in this email are solely those of the author and may not necessarily reflect the views or opinions of HCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of authorized representative of HCL is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. Before opening any email and/or attachments, please check them for viruses and other defects.
> ________________________________

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RE: Exceptions in solr log

Vadim Ivanov
In reply to this post by Akreeti Agarwal
Hi,
I'm facing the same problem with Solrcloud 7x - 8x.
I have TLOG type of replicas and when I delete Leader,  log is always full
of this:
2019-12-28 14:46:56.239 ERROR (indexFetcher-45942-thread-1) [   ]
o.a.s.h.IndexFetcher No files to download for index generation: 7166
2019-12-28 14:48:03.157 ERROR (indexFetcher-45881-thread-1) [   ]
o.a.s.h.IndexFetcher No files to download for index generation: 10588
Unfortunately, by this error it's hard to say even what exact replica, shard
and collection is in trouble.
Sometimes, indexing helps - my guess that after commit slave replicas
somehow understands what index generation should be retrieved from new
leader.
Sometimes I have to restart node.

--
Vadim

> -----Original Message-----
> From: Akreeti Agarwal [mailto:[hidden email]]
> Sent: Friday, December 27, 2019 8:20 AM
> To: [hidden email]
> Subject: Exceptions in solr log
>
> Hi All,
>
> Please help me with these exceptions and their workarounds:
>
> 1. org.apache.solr.common.SolrException:
org.apache.solr.search.SyntaxError:
> Cannot parse
> 2. o.a.s.h.IndexFetcher No files to download for index generation: 1394327
> 3. o.a.s.h.a.LukeRequestHandler Error getting file length for [segments_b]
(this

> one is warning as discussed)
>
> I am getting these errors always in my solr logs, what can be the reason
> behind them and how should I resolve it.
>
>
> Thanks & Regards,
> Akreeti Agarwal
> ::DISCLAIMER::
> ________________________________
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only. E-mail transmission is not
> guaranteed to be secure or error-free as information could be intercepted,
> corrupted, lost, destroyed, arrive late or incomplete, or may contain
viruses in
> transmission. The e mail and its contents (with or without referred
errors)
> shall therefore not attach any liability on the originator or HCL or its
affiliates.
> Views or opinions, if any, presented in this email are solely those of the
> author and may not necessarily reflect the views or opinions of HCL or its
> affiliates. Any form of reproduction, dissemination, copying, disclosure,
> modification, distribution and / or publication of this message without
the
> prior written consent of authorized representative of HCL is strictly
> prohibited. If you have received this email in error please delete it and
notify
> the sender immediately. Before opening any email and/or attachments,
> please check them for viruses and other defects.
> ________________________________