Re: _version_ field missing in schema?

[Aleksandar Dimitrov]

Finally, since you are trying to really tweak the schema and 
general
configuration right from the start, you may find some of my 
presentations
useful, as they show the minimal configuration. Not perfect for 
your needs,
as I do skip _version, but as an additional data point. The 
recent one is:
https://www.slideshare.net/arafalov/rapid-solr-schema-development-phone-directory
and the Git repo is at:
https://github.com/arafalov/solr-presentation-2018-may . This 
one may be
useful as well:
https://www.slideshare.net/arafalov/from-content-to-search-speeddating-apache-solr-apachecon-2018-116330553

Thanks for the pointers. I've finally managed to get my schema to 
work ☺

Cheers,
Aleks


Regards,
   Alex.

On Wed, Jan 23, 2019, 5:50 AM Aleksandar Dimitrov <
a.dimit...@seidemann-web.com wrote:

Hi Alex,

thanks for you answer. I took the lines directly from the
managed-schema, deleted the managed-schema, and pasted those 
lines
into
my schema.xml.

If I have other errors in the schema.xml (such as a missing 
field
type),
solr complains about those until I fix them. So I would guess 
that
the
schema is at least *read*, but unsure if it is in fact used. 
I've
not
used solr before.

I cannot use the admin UI, at least not while the core with the
faulty
schema is used.

I wanted to use schema.xml because it allows for version 
control,
and
because it's easier for me to just use xml to define my schema. 
Is
there
a preferred approach? I don't (want to) use solr cloud, as for 
our
use
case a single instance of solr is more than enough.

Thanks for your help,
Aleks

Alexandre Rafalovitch <arafa...@gmail.com> writes:

> What do you mean schema.xml from managed-schema? schema.xml 
> is
> old
> non-managed approach. If you have both, schema.xml will be
> ignored.
>
> I suspect you are not running with the schema you think you 
> do.
> You can
> check that with API or in Admin UI if you get that far.
>
> Regards,
>     Alex
>
> On Tue, Jan 22, 2019, 11:39 AM Aleksandar Dimitrov <
> a.dimit...@seidemann-web.com wrote:
>
>> Hi,
>>
>> I'm using solr 7.5, in my schema.xml I have this, which I 
>> took
>> from the
>> managed-schema:
>>
>>   <!-- Solr private fields -->
>>   <!-- docValues are enabled by default for long type so we
>>   don't
>>   need to index the version field  -->
>>   <field name="_version_" type="plong" indexed="false"
>>   stored="false" />
>>   <fieldType name="plong" class="solr.LongPointField"
>>   docValues="true" />
>>
>> However, on startup, solr complains:
>>
>>  Caused by: org.apache.solr.common.SolrException: _version_
>>  field
>>  must exist in schema and be searchable (indexed or 
>>  docValues)
>>  and
>>  retrievable(stored or docValues) and not multiValued
>>  (_version_
>>  does not exist)
>>       at
>>
>>
org.apache.solr.update.VersionInfo.getAndCheckVersionField(VersionInfo.java:69)
>>
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>       org.apache.solr.update.VersionInfo.<init>(VersionInfo.java:95)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>       org.apache.solr.update.UpdateLog.init(UpdateLog.java:404)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
 org.apache.solr.update.UpdateHandler.<init>(UpdateHandler.java:161)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
 org.apache.solr.update.UpdateHandler.<init>(UpdateHandler.java:116)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
>>
org.apache.solr.update.DirectUpdateHandler2.<init>(DirectUpdateHandler2.java:119)
>>
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
>> jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native
>>       Method) ~[?:?]
>>       at
>>
>>
jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
>>
>>       ~[?:?]
>>       at
>>
>>
jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
>>
>>       ~[?:?]
>>       at
>>       java.lang.reflect.Constructor.newInstance(Constructor.java:488)
>>       ~[?:?]
>>       at
>>       org.apache.solr.core.SolrCore.createInstance(SolrCore.java:799)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
 org.apache.solr.core.SolrCore.createUpdateHandler(SolrCore.java:861)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
 org.apache.solr.core.SolrCore.initUpdateHandler(SolrCore.java:1114)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>       org.apache.solr.core.SolrCore.<init>(SolrCore.java:984)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>       org.apache.solr.core.SolrCore.<init>(SolrCore.java:869)
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       at
>>
>>
org.apache.solr.core.CoreContainer.createFromDescriptor(CoreContainer.java:1138)
>>
>>       ~[solr-core-7.5.0.jar:7.5.0
>>       b5bf70b7e32d7ddd9742cc821d471c5fabd4e3df - jimczi -
>>       2018-09-18 13:07:55]
>>       ... 7 more
>>
>> Anyone know what I'm doing wrong?
>> I've tried having the _version_ field be string, and indexed
>> and
>> stored,
>> but that didn't help.
>>
>> Thanks!
>>
>> Aleks
>>
>>