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From Erick Erickson <erickerick...@gmail.com>
Subject Re: Solr 8.2.0 having issue with ZooKeeper 3.5.5
Date Thu, 01 Aug 2019 11:16:34 GMT
Interestingly, the code that sets this system property also has spaces, as:

if (System.getProperty(ZK_WHITELIST_PROPERTY) == null) {
  System.setProperty(ZK_WHITELIST_PROPERTY, "ruok, mntr, conf");
}

Don’t know if that’s relevant or just a coincidence….

> On Aug 1, 2019, at 6:58 AM, Erick Erickson <erickerickson@gmail.com> wrote:
> 
> The issue was only cosmetic in the sense that the admin UI was the only thing that was
affected,
> not other Solr functions when I was working on this.
> 
> Please check a few things:
> 
> 1> be absolutely sure that you’ve added this in all your zoo.cfg files
> 
> 2> the example on the ZooKeeper website has spaces, could you try that just to cover
all bases? Stranger things have happened…
> 
> 4lw.commands.whitelist=mntr, ruok, conf
> not
> 4lw.commands.whitelist=mntr,ruok,conf
> 
> 3> if <1> and <2> don’t work, what happens if you start your ZooKeepers
with 
> -Dzookeeper.4lw.commands.whitelist=….
> 
> If it’s not <1> or <2>, please raise a JIRA.
> 
> Best,
> Erick
> 
> Also, see: SOLR-13502 (no work has been done on this yet)
> 
>> On Aug 1, 2019, at 6:05 AM, Jörn Franke <jornfranke@gmail.com> wrote:
>> 
>> For me:
>> * ZK stand-alone mode - no issues
>> * ZK Ensemble - it seems to be only a cosmetic issue in the Admin UI (I see the same
error message), but aside this Solr is working fine 
>> 
>> 
>> 
>>> Am 01.08.2019 um 12:02 schrieb Zheng Lin Edwin Yeo <edwinyeozl@gmail.com>:
>>> 
>>> Hi Jörn,
>>> Thank you for your reply.
>>> 
>>> I have encountered problem when I tried to create a collection with this
>>> new version of ZooKeeper. You can find my Solr log file here:
>>> https://drive.google.com/open?id=1qkMLTRJ4eDSFwbqr15wSqjbg4dJV-bGN
>>> 
>>> Does it work perfectly at your side for creating collections and indexing
>>> even when running ZooKeeper ensemble?
>>> 
>>> Regards,
>>> Edwin
>>> 
>>> 
>>>> On Thu, 1 Aug 2019 at 17:39, Jörn Franke <jornfranke@gmail.com> wrote:
>>>> 
>>>> I confirm the issue.
>>>> 
>>>> Interestingly it does not happen with ZK standalone, but only in a ZK
>>>> Ensemble.
>>>> 
>>>> It seems to be mainly cosmetic in the admin UI because Solr appears to
>>>> function normally.
>>>> 
>>>>> Am 01.08.2019 um 03:31 schrieb Zheng Lin Edwin Yeo <edwinyeozl@gmail.com
>>>>> :
>>>>> 
>>>>> Yes. You can get my full solr.log from the link below. The error is there
>>>>> when I tried to create collection1 (around line 170 to 300) .
>>>>> 
>>>>> https://drive.google.com/open?id=1qkMLTRJ4eDSFwbqr15wSqjbg4dJV-bGN
>>>>> 
>>>>> Regards,
>>>>> Edwin
>>>>> 
>>>>> 
>>>>>> On Wed, 31 Jul 2019 at 18:39, Jan Høydahl <jan.asf@cominvent.com>
>>>> wrote:
>>>>>> 
>>>>>> Please look for the full log file solr.log in your Solr server, and
>>>> share
>>>>>> it via some file sharing service or gist or similar for us to be
able to
>>>>>> decipher the collection create error.
>>>>>> 
>>>>>> --
>>>>>> Jan Høydahl, search solution architect
>>>>>> Cominvent AS - www.cominvent.com
>>>>>> 
>>>>>>> 31. jul. 2019 kl. 08:33 skrev Zheng Lin Edwin Yeo <
>>>> edwinyeozl@gmail.com
>>>>>>> :
>>>>>>> 
>>>>>>> Hi,
>>>>>>> 
>>>>>>> Regarding the issue, I have tried to put the following in zoo.cfg
under
>>>>>>> ZooKeeper:
>>>>>>> 4lw.commands.whitelist=mntr,conf,ruok
>>>>>>> 
>>>>>>> But it is still showing this error.
>>>>>>> *"Errors: - membership: Check 4lq.commands.whitelist setting
in
>>>> zookeeper
>>>>>>> configuration file."*
>>>>>>> 
>>>>>>> As I am using SolrCloud, the collection config can still be loaded
to
>>>>>>> ZooKeeper as per normal. But if I tried to create a collection,
I will
>>>>>> get
>>>>>>> the following error:
>>>>>>> 
>>>>>>> {
>>>>>>> "responseHeader":{
>>>>>>> "status":400,
>>>>>>> "QTime":686},
>>>>>>> "failure":{
>>>>>>> "192.168.1.2:8983
>>>>>> _solr":"org.apache.solr.client.solrj.SolrServerException:IOException
>>>>>>> occurred when talking to server at:http://192.168.1.2:8983/solr",
>>>>>>> "192.168.1.2:8984
>>>>>> _solr":"org.apache.solr.client.solrj.SolrServerException:IOException
>>>>>>> occurred when talking to server at:http://192.168.1.2:8984/solr"},
>>>>>>> "Operation create caused
>>>>>>> 
>>>>>> 
>>>> exception:":"org.apache.solr.common.SolrException:org.apache.solr.common.SolrException:
>>>>>>> Underlying core creation failed while creating collection:
>>>> collection1",
>>>>>>> "exception":{f
>>>>>>> "msg":"Underlying core creation failed while creating collection:
>>>>>>> collection1",
>>>>>>> "rspCode":400},
>>>>>>> "error":{
>>>>>>> "metadata":[
>>>>>>>  "error-class","org.apache.solr.common.SolrException",
>>>>>>>  "root-error-class","org.apache.solr.common.SolrException"],
>>>>>>> "msg":"Underlying core creation failed while creating collection:
>>>>>>> collection1",
>>>>>>> "code":400}}
>>>>>>> 
>>>>>>> Is there anything which I may have missed out?
>>>>>>> 
>>>>>>> Regards,
>>>>>>> Edwin
>>>>>>> 
>>>>>>> On Tue, 30 Jul 2019 at 10:05, Zheng Lin Edwin Yeo <
>>>> edwinyeozl@gmail.com>
>>>>>>> wrote:
>>>>>>> 
>>>>>>>> Hi,
>>>>>>>> 
>>>>>>>> I am using the new Solr 8.2.0 with SolrCloud and external
ZooKeeper
>>>>>> 3.5.5.
>>>>>>>> 
>>>>>>>> However, after adding in the line under zoo.cfg
>>>>>>>> *4lw.commands.whitelist=**
>>>>>>>> 
>>>>>>>> I get the error under Cloud -> ZK Status in Solr
>>>>>>>> *"Errors: - membership: Check 4lq.commands.whitelist setting
in
>>>>>> zookeeper
>>>>>>>> configuration file."*
>>>>>>>> 
>>>>>>>> I have noticed that the issue is cause by adding the "conf"
in the
>>>>>>>> whitelist. But if I do not add the "conf" to the whitelist,
I will get
>>>>>> the
>>>>>>>> following error:
>>>>>>>> *"Errors: - conf is not executed because it is not in the
whitelist.
>>>>>> Check
>>>>>>>> 4lw.commands.whitelist setting in zookeeper configuration
file."*
>>>>>>>> 
>>>>>>>> What could be the issue that cause this error, and how can
we resolve
>>>>>> it.
>>>>>>>> 
>>>>>>>> Thank you.
>>>>>>>> 
>>>>>>>> Regards,
>>>>>>>> Edwin
>>>>>>>> 
>>>>>> 
>>>>>> 
>>>> 
> 


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