OOPS - forgot!
I remember now that the installation script failed with:
Service solr installed.
Customize Solr startup configuration in /etc/default/solr.in.sh
Job for solr.service failed because the control process exited with error
code.
See "systemctl status solr.service" and "journalctl -xe" for details.
● solr.service - LSB: Controls Apache Solr as a Service
Loaded: loaded (/etc/init.d/solr; generated)
Active: failed (Result: exit-code) since Tue 2021-12-21 12:39:44 CST; 5s
ago
Docs: man:systemd-sysv-generator(8)
Process: 3772 ExecStart=/etc/init.d/solr start (code=exited,
status=1/FAILURE)
Main PID: 1738 (code=exited, status=0/SUCCESS)
Dec 21 12:39:44 media systemd[1]: Starting LSB: Controls Apache Solr as a
Service...
Dec 21 12:39:44 media su[3774]: Successful su for tomcat by root
Dec 21 12:39:44 media su[3774]: + ??? root:tomcat
Dec 21 12:39:44 media su[3774]: pam_unix(su:session): session opened for
user tomcat by (uid=0)
Dec 21 12:39:44 media su[3774]: pam_unix(su:session): session closed for
user tomcat
Dec 21 12:39:44 media systemd[1]: solr.service: Control process exited,
code=exited status=1
Dec 21 12:39:44 media systemd[1]: solr.service: Failed with result
'exit-code'.
Dec 21 12:39:44 media systemd[1]: Failed to start LSB: Controls Apache Solr
as a Service.
I (sort of) see where to look to investigate this. I am guessing I need to
read up on 'LSB'. Might this problem be permission related?
On Tuesday, December 21, 2021 at 1:03:00 PM UTC-5 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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