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From Raymond Xie <xie3208...@gmail.com>
Subject Re: Why I receive permission denied when running as root
Date Tue, 17 Sep 2019 13:10:31 GMT
Thank you Paras:

If I am already user of root, and still run sudo? no, it doesn't work:
[root@pocnnr1n1 solr]# sudo bin/solr start -force
sudo: bin/solr: command not found

[root@pocnnr1n1 solr]# ls -l bin/solr
-rw-r--r-- 1 root root 80630 Jul 19 09:09 bin/solr

So, I followed your suggestion and added +x, now run the command again:
[root@pocnnr1n1 solr]# bin/solr start
*** [WARN] *** Your open file limit is currently 1024.
 It should be set to 65000 to avoid operational disruption.
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false
in your profile or solr.in.sh
*** [WARN] ***  Your Max Processes Limit is currently 63397.
 It should be set to 65000 to avoid operational disruption.
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false
in your profile or solr.in.sh
WARNING: Starting Solr as the root user is a security risk and not
considered best practice. Exiting.
         Please consult the Reference Guide. To override this check, start
with argument '-force'

alright, I'll add the -force option:
[root@pocnnr1n1 solr]# bin/solr start -force
*** [WARN] *** Your open file limit is currently 1024.
 It should be set to 65000 to avoid operational disruption.
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false
in your profile or solr.in.sh
*** [WARN] ***  Your Max Processes Limit is currently 63397.
 It should be set to 65000 to avoid operational disruption.
 If you no longer wish to see this warning, set SOLR_ULIMIT_CHECKS to false
in your profile or solr.in.sh

ERROR: start.jar file not found in /opt/solr-8.2.0/solr/server!
Please check your -d parameter to set the correct Solr server directory.

BUT: the folder server is there, and no start.jar

[root@pocnnr1n1 solr]# ls /opt/solr-8.2.0/solr
bin          common-build.xml  licenses            server          webapp
bin-test     contrib           LICENSE.txt         site
build.xml    core              LUCENE_CHANGES.txt  solrj
CHANGES.txt  docs              NOTICE.txt          solr-ref-guide
cloud-dev    example           README.txt          test-framework

[root@pocnnr1n1 server]# ll
total 16
drwxr-xr-x 2 root root    6 Jul 19 09:09 solr-webapp
drwxr-xr-x 3 root root   27 Jul 19 09:09 scripts
-rw-r--r-- 1 root root 3959 Jul 19 09:09 README.txt
-rw-r--r-- 1 root root 5740 Jul 19 09:09 ivy.xml
-rw-r--r-- 1 root root 2214 Jul 19 09:09 build.xml
drwxr-xr-x 2 root root  135 Sep 16 21:13 etc
drwxr-xr-x 2 root root   36 Sep 16 21:13 contexts
drwxr-xr-x 2 root root   82 Sep 16 21:13 resources
drwxr-xr-x 2 root root   90 Sep 16 21:13 modules
drwxr-xr-x 3 root root   73 Sep 16 21:13 solr

*So this seems to be something missing from the solr package?*

*Thank you.*

*------------------------------------------------*
*Sincerely yours,*


*Raymond*


On Tue, Sep 17, 2019 at 8:42 AM Paras Lehana <paras.lehana@indiamart.com>
wrote:

> Hey Raymond,
>
>
> bin/solr start -force
>
>
> I know this could be useless, but did you try the following (notice the
> sudo)?
>
> *sudo* bin/solr start -force
>
>
> Also, I suggest you to review permission of solr file by:
>
> ls -l bin/solr
>
>
> If you don't see required executable permissions, you can provide root
> user the permission to execute the file by:
>
> *chmod +x bin/solr*
>
>
> Hope this helps.
>
> On Tue, 17 Sep 2019 at 18:03, Raymond Xie <xie3208080@gmail.com> wrote:
>
>> Thank you.
>>
>> As I suspected, this is something else. It prompts me the same error here:
>> [root@pocnnr1n1 solr]# bin/solr start -force
>> -bash: bin/solr: Permission denied
>> [root@pocnnr1n1 solr]#
>>
>> It is not a good practice to use root directly, however, using root
>> should not have permission error. This is odd.
>>
>>
>> *------------------------------------------------*
>> *Sincerely yours,*
>>
>>
>> *Raymond*
>>
>>
>> On Tue, Sep 17, 2019 at 12:49 AM Paras Lehana <paras.lehana@indiamart.com>
>> wrote:
>>
>>> Hi Raymond,
>>>
>>> It's not recommended to run solr as root (security reasons
>>> <https://lucene.apache.org/solr/guide/8_1/taking-solr-to-production.html#create-the-solr-user>).
>>> Nevertheless, in order to answer your question, try this command:
>>>
>>> *sudo bin/solr start -force*
>>>
>>>
>>> From Solr Control Script Reference
>>> <https://lucene.apache.org/solr/guide/8_1/solr-control-script-reference.html#start-parameters>
>>> :
>>>
>>> If attempting to start Solr as the root user, the script will exit with
>>>> a warning that running Solr as "root" can cause problems. It is possible
to
>>>> override this warning with the -force parameter.
>>>
>>>
>>> PS: I suggest you to go through *Service Installation Script *in Taking
>>> Solr to Production
>>> <https://lucene.apache.org/solr/guide/8_1/taking-solr-to-production.html>
that
>>> describes the ideal Solr setup. A must read!
>>>
>>> Hope I helped.
>>>
>>>
>>> On Tue, 17 Sep 2019 at 08:37, Raymond Xie <xie3208080@gmail.com> wrote:
>>>
>>>> [root@pocnnr1n1 solr-8.2.0]# ll
>>>> total 88
>>>> -rw-r--r--  1 root root  4023 Jul 19 09:09 README.md
>>>> -rw-r--r--  1 root root 32153 Jul 19 09:09 build.xml
>>>> -rw-r--r--  1 root root 27717 Jul 19 09:09 NOTICE.txt
>>>> -rw-r--r--  1 root root 12646 Jul 19 09:09 LICENSE.txt
>>>> drwxr-xr-x 10 root root   174 Sep 16 21:13 dev-tools
>>>> drwxr-xr-x 30 root root  4096 Sep 16 21:13 lucene
>>>> drwxr-xr-x 16 root root  4096 Sep 16 21:13 solr
>>>>
>>>> [root@pocnnr1n1 solr]# bin/solr start
>>>> -bash: bin/solr: Permission denied
>>>>
>>>> Can anyone please help me to sort it out?
>>>>
>>>> Thank you. Regards.
>>>> *------------------------------------------------*
>>>> *Sincerely yours,*
>>>>
>>>>
>>>> *Raymond*
>>>>
>>>
>>>
>>> --
>>> --
>>> Regards,
>>>
>>> *Paras Lehana* [65871]
>>> Software Programmer, Auto-Suggest,
>>> IndiaMART Intermesh Ltd.
>>>
>>> 8th Floor, Tower A, Advant-Navis Business Park, Sector 142,
>>> Noida, UP, IN - 201303
>>>
>>> Mob.: +91-9560911996
>>> Work: 01203916600 | Extn:  *8173*
>>>
>>> IMPORTANT:
>>> NEVER share your IndiaMART OTP/ Password with anyone.
>>>
>>
>
> --
> --
> Regards,
>
> *Paras Lehana* [65871]
> Software Programmer, Auto-Suggest,
> IndiaMART Intermesh Ltd.
>
> 8th Floor, Tower A, Advant-Navis Business Park, Sector 142,
> Noida, UP, IN - 201303
>
> Mob.: +91-9560911996
> Work: 01203916600 | Extn:  *8173*
>
> IMPORTANT:
> NEVER share your IndiaMART OTP/ Password with anyone.
>

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