The install_solr_service.sh script in /build fails when I have the user set 
to 'tomcat'. The service installs correctly is I leave the SOLR_USER as 
'solr'. My tomcat seems correctly installed and does load with system 
startup.
Might you clarify why I cannot install using this script, after I change 
the user to 'tomcat'?

On Tuesday, December 21, 2021 at 5:03:48 PM UTC-5 Mohammad S. AlMutairi 
wrote:

> Hello Chris,
>
> Enabling services so it will be started at boot time is straight forward. 
> To enable tomcat9 ( sudo systemctl enable tomcat9 ) to start it use ( sudo 
> systemctl start tomcat9 ) to check it's status use ( sudo systemctl status 
> tomcat9 ) to stop it use ( sudo systemctl stop tomcat9 ). replace tomcat9 
> with solr for the solr service and apache2 for the apache webserver.
>
> Here is the answer to your questions and please pardon me because I'm 
> struggling with my english.
> 1) You shouldn't worry about the SSL certificate error because Solr admin 
> should not be publicly accessible unless it's protected besides dspace 
> doesn't work if solr is password protected so to satisfy both requirements 
> Solr should be restricted to run on the loopback adapter (localhost) and 
> that's where dspace be default expect solr to be ( solr.server = 
> http://localhost:8983/solr ). You can test locally using wget or curl ( 
> curl http://localhost:8983/solr/ ) or you can setup a reverse proxy to 
> reach it and then you can use the browser for testing purposes but you have 
> to disable it afterwards. 
>
> 2) Sorry about that. It was a typo. I posted yesterday while in a hurry so 
> please ignore it. The solr installation script you should edit and changed 
> is what we extracted from the gzipped tar file in step (d) in the build 
> directory. You can skip step (e) and use the below perl command to change 
> the file without having to manuallt edit it.
>      * perl -i -pe 's/SOLR_USER=solr/SOLR_USER=tomcat/;' 
> /build/install_solr_service.sh
>
> 3) You don't need to unless you loose the changed installation script from 
> the build directory and you need to reinstall solr again.
>
> Mohammed
>
> On Tuesday, December 21, 2021 at 9:03:00 PM UTC+3 Chris Clawson wrote:
>
>> Mohammad -
>> I am attempting a fresh Solr install as per you detailed instructions. 
>> The first attempt now has a functional solr, but won't start as a service 
>> at run time. I can force start solr as user 'tomcat' by the command 'sudo 
>> -u tomcat ./solr start' from the  /opt/solr-8.11.1/bin directory. I was 
>> then able to connect to Solr at http://meloware.com:8983/solr/#/ , but I 
>> get an error "Error code: SSL_ERROR_RX_RECORD_TOO_LONG" when I attempt to 
>> connect to https://meloware.com:8983/solr/#/  . Maybe I am not supposed 
>> to do that, even on good days.
>>
>> Without more help, I will probably try and clean/re-install solr-8.1.11 
>> again, but I should get some clarification about the instructions posted 
>> earlier in this thread.
>> Item (e) says to:
>>  vi ./install_solr_service.sh # You need to change SOLR_USER=solr to 
>> SOLR_USER=tomcat in /etc/default/install_solr_service.sh file. tomcat is 
>> the user which has write permission over dspace folder if not replace 
>> tomcat with the user you picked for dspace.
>>
>> I understand 'install_solr_service.sh' needs to have the username changed 
>> from 'solr' to my actual DSpace user 'tomcat', but you are saying this 
>> script appears in '/etc/default/install_solr_service.sh' . Before 
>> installation, the only place it appears is in /build . This was where I 
>> edited 'install_solr_service.sh'. Once this script is run, my installation 
>> directory is '/opt/solr-8.11.1' and the script (original and unedited from 
>> the tar archive) is written to '/opt/solr-8.11.1/bin' . Of course, the 
>> default 'SOLR_USER=solr' rather than 'tomcat' is there. Is this script in 
>> it's new location important to edit 'SOLR_USER=' to 'tomcat as well? What 
>> about this path to ' /etc/default/install_solr_service.sh'? The only thing 
>> (solr) at '/etc/default/' is 'solr.in.sh', which doesn't seem to be 
>> involved with defining users.
>> ***
>> I may have goofed somewhere and will try a clean re-install again. I 
>> still would appreciate the answers to three questions:
>> 1) Is the https error ' SSL_ERROR_RX_RECORD_TOO_LONG' something to worry 
>> about now or later? 
>> 2) Should I presume the correct location to edit the 
>> 'install_solr_service.sh' script (for changing the SOLR_USER to 'tomcat')  
>> is the one in '/build' , and not in ' /etc/default/' ?
>> 3) Once installed, should I also edit  SOLR_USER  in  
>> '/opt/solr-8.11.1/bin/install_solr_service.sh' and also change that 
>> variable to 'tomcat', as I first did with the script in /build?
>> Thanks - I'll 'get it' eventually
>> On Monday, December 20, 2021 at 9:17:06 PM UTC-5 Mohammad S. AlMutairi 
>> wrote:
>>
>>> You most welcome. Let us here in group how it goes or if you need help 
>>> with what's left to get it up and running. Good luck.
>>>
>>> On Tuesday, December 21, 2021 at 1:51:00 AM UTC+3 Chris Clawson wrote:
>>>
>>>> I just took a better look at Mohammad's excellent, detailed 
>>>> instructions. Rather than proceeding with the front-end installation, I 
>>>> think I will make a re-install of Solr 8.11.1 as per his instructions. 
>>>> Thanks for the great detail!
>>>>
>>>> On Monday, December 20, 2021 at 5:42:26 PM UTC-5 Chris Clawson wrote:
>>>>
>>>>> Gentlemen, Thank you.
>>>>>
>>>>> I am sorry about not including my system conditions (I normally do 
>>>>> include them). I am not an I.T. professional and cannot follow directions 
>>>>> by nature. I am running a KVM container with Ubuntu 18.?, LAMP and Tomcat 
>>>>> 9. I don't remember how I installed the packages, but although I could 
>>>>> manually start them,  I couldn't get them to to load/run at boot time. It 
>>>>> took a day or more for me to discover there was a difference between 
>>>>> systemd and init.d. (An important one.) I now have both Tomcat and Solr 
>>>>> running as systemd services and I have created a user/group 'solr' 
>>>>> *without* any password assigned to the Solr user. PLEASE let me know 
>>>>> if there is something to fix at this point. The DSpace seems to start 
>>>>> fine 
>>>>> at boot time, now. I also have just finished installing SSL for both 
>>>>> Apache 
>>>>> and Tomcat. My back-end Hal browser pages happily displays now when 
>>>>> accessing https://meloware.com:8443/#/api . I will copy and save the 
>>>>> valuable information you have took the time to mention here and save it 
>>>>> for 
>>>>> future reference. This site is practice before attempting to upgrade my 
>>>>> production server (with DSpace 6.3) at 
>>>>> https://montaguearchive.org:8443/ .
>>>>> Chris
>>>>>
>>>>> On Monday, December 20, 2021 at 12:56:31 PM UTC-5 Mohammad S. 
>>>>> AlMutairi wrote:
>>>>>
>>>>>> Hello Chris,
>>>>>>
>>>>>> You dropped a vital piece of information about the Linux flavor you 
>>>>>> are using so I'm assuming a Debian derivative. It's better to start a 
>>>>>> fresh 
>>>>>> Solr installation by removing the old Solr installation and following 
>>>>>> the 
>>>>>> steps you see below.
>>>>>>
>>>>>> a) mkdir /build
>>>>>> b) cd /build
>>>>>> c) wget 
>>>>>> https://downloads.apache.org/lucene/solr/8.11.1/solr-8.11.1.tgz
>>>>>> d) tar xzf solr-8.11.1.tgz solr-8.11.1/bin/install_solr_service.sh 
>>>>>> --strip-components=2
>>>>>> e) vi ./install_solr_service.sh # You need to change SOLR_USER=solr 
>>>>>> to SOLR_USER=tomcat in /etc/default/install_solr_service.sh file. tomcat 
>>>>>> is 
>>>>>> the user which has write permission over dspace folder if not replace 
>>>>>> tomcat with the user you picked for dspace.
>>>>>> f) bash ./install_solr_service.sh solr-8.11.1.tgz
>>>>>> g) vi /etc/default/solr.in.sh # You need to add dspace folders in 
>>>>>> Solr allowed paths.
>>>>>> SOLR_OPTS="$SOLR_OPTS 
>>>>>> -Dsolr.allowPaths=/opt/dspace/solr/statistics,/opt/dspace/temp/solr-data"
>>>>>> h) cp -r /opt/dspace/solr/* /var/solr/data/ # Do this step after 
>>>>>> installing dspace. You need to change /opt/dspace to the folder you 
>>>>>> installed dspace into.
>>>>>> i) chown -R tomcat:tomcat /var/solr/data/ # You need to change the 
>>>>>> user and the group if it differs from the user and group you chose for 
>>>>>> dspace.
>>>>>> j) systemctl enable solr
>>>>>> k) systemctl restart solr
>>>>>>
>>>>>> *** You might fall into this issue at a later stage. Running 
>>>>>> /opt/dspace/bin/dspace solr-reindex-statistics for the first time will 
>>>>>> complain with the error message you see below but running it again will 
>>>>>> complete successfully ( I think the error shows up because of the 
>>>>>> existence 
>>>>>> of /opt/dspace/solr/statistics/core.properties file which gets deleted 
>>>>>> at 
>>>>>> the first run) .  Maybe Tim can shed some light on this.
>>>>>> ### error message ### Could not create a new core in 
>>>>>> /opt/dspace/solr/statistics as another core is already defined there ### 
>>>>>> end of error message ###
>>>>>>
>>>>>> ######## Steps to uninstall Solr on Ubuntu manually ##########
>>>>>> systemctl stop solr
>>>>>> rm -r /var/solr
>>>>>> rm -r /opt/solr-8.x.x
>>>>>> rm -r /opt/solr
>>>>>> rm /etc/init.d/solr
>>>>>> deluser --remove-home solr
>>>>>> deluser --group solr
>>>>>> update-rc.d -f solr remove
>>>>>> rm -rf /etc/default/solr.in.sh
>>>>>> #################################################
>>>>>>
>>>>>> Mohammed
>>>>>> On Monday, December 20, 2021 at 5:49:39 PM UTC+3 DSpace Technical 
>>>>>> Support wrote:
>>>>>>
>>>>>>> Hi Chris,
>>>>>>>
>>>>>>> The 'solr' user should be created by default when installing Apache 
>>>>>>> Solr.  In any case, Apache Solr recommends *not* running Solr as root.  
>>>>>>> Instead, they recommend creating a "solr" user (it could be named 
>>>>>>> something 
>>>>>>> else if you want) to install Solr under.  
>>>>>>>
>>>>>>> See this Apache guide for taking Solr to production for more 
>>>>>>> information: 
>>>>>>> https://solr.apache.org/guide/8_1/taking-solr-to-production.html#create-the-solr-user
>>>>>>>   
>>>>>>>  That guide is also linked to from the main "Installing Solr" 
>>>>>>> instructions 
>>>>>>> in the "Preparing for Installation" section: 
>>>>>>> https://solr.apache.org/guide/8_1/installing-solr.html#preparing-for-installation
>>>>>>>
>>>>>>> Hopefully that helps explain things better!
>>>>>>>
>>>>>>> Tim
>>>>>>>
>>>>>>> On Saturday, December 18, 2021 at 11:16:07 AM UTC-6 Chris Clawson 
>>>>>>> wrote:
>>>>>>>
>>>>>>>> I have Solr 8.11.1 extracted to /opt/solr-8.11.1 . The command line 
>>>>>>>> example (provided in the Apache Foundation quick start instructions), 
>>>>>>>>  ./bin/solr start -e cloud , produces a 'welcome' message.
>>>>>>>> Step #13 of the DSpace 7.x installation page instructs me to copy 
>>>>>>>> dspace configsets to the installed Solr directory. (Fine.)
>>>>>>>> The second part of step #13 is telling me to change the group/owner 
>>>>>>>> of these configsets to 'solr':
>>>>>>>> chown -R solr:solr /opt/solr-8.11.1/server/solr/configsets
>>>>>>>> What group/user solr is this? It is not defined anywhere that I can 
>>>>>>>> find, and the Apache Foundation doesn't mention it anywhere I can see 
>>>>>>>> or 
>>>>>>>> understand.
>>>>>>>> Right now, the entire Solr directory is group and user owned by 
>>>>>>>> root:root. My DSpace operating system user will be 'tomcat'.
>>>>>>>>
>>>>>>>> Please explain how and why I should use this 'solr' user and group. 
>>>>>>>> Thanks
>>>>>>>>
>>>>>>>

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