Hi Tim, Before I posted my problem here I tried everything as as outlined in https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace#InstallingDSpace-FrontendInstallation It is not working without pm2.
*/dspace-ui-deploy*$ node ./dist/server/main.js Building *production* app config Overriding app config with /dspace-ui-deploy/config/config.yml Overriding app config with /dspace-ui-deploy/config/config.prod.yml Angular *config.json* file generated correctly at */dspace-ui-deploy/dist/browser/assets/config.json* Environment extended with app config dspace-angular Version: 7.5.0 Environment: Production [HPM] Proxy created: / -> https://<nameOfMyServer>/server/sitemaps [08:20:25 GMT+0200 (Mitteleuropäische Sommerzeit)] Listening at http://localhost:4000/ If I do: wget -v http://localhost:4000 --2023-05-23 08:33:09-- http://localhost:4000/ Auflösen des Hostnamens localhost (localhost) … ::1, 127.0.0.1 Verbindungsaufbau zu localhost (localhost)|::1|:4000 … fehlgeschlagen: Verbindungsaufbau abgelehnt. Verbindungsaufbau zu localhost (localhost)|127.0.0.1|:4000 … verbunden. HTTP-Anforderung gesendet, auf Antwort wird gewartet … Then nothing happens. And I mean nothing. I can see the connection in netstat tcp 0 0 localhost:4000 localhost:46794 VERBUNDEN dspace 784425 44998/node And I don't get an answer where I started wget. And I am patient. After more then 15 minutes I get GET / - - ms - - on the console where I started node an other 15 minutes: Lesefehler (Die Wartezeit für die Verbindung ist abgelaufen) beim Vorspann (header). Erneuter Versuch. --2023-05-23 08:48:10-- (Versuch: 2) http://localhost:4000/ Verbindungsaufbau zu localhost (localhost)|127.0.0.1|:4000 … verbunden. HTTP-Anforderung gesendet, auf Antwort wird gewartet … It starts a third try, before it gives up. And no clue what is wrong. I did the test: *dspace-angular*$ yarn test:rest *yarn run v1.22.19* $ ts-node --project ./tsconfig.ts-node.json scripts/test-rest.ts Building *production* app config Overriding app config with /home/dspace/dspace-angular/config/config.yml Overriding app config with /home/dspace/dspace-angular/config/config.prod.yml ...Testing connection to REST API at https://<nameOfMyServer>/server/api... RESPONSE: 200 200 Checking JSON returned for validity... "dspaceVersion" = DSpace 7.5 "dspaceUI" = https://<nameOfMyAngularServer> "dspaceServer" = https://<nameOfMyServer>/server "dspaceServer" property matches UI's "rest" config? true Does "/api" endpoint have HAL links ("_links" section)? true Done in 5.38s. In the Apache Config I included ProxyPass / http://localhost:4000/ ProxyPassReverse / http://localhost:4000/ I can't do more then doing exactly what is written in the installation instructions. So what is wrong? Kind Regards Christiane DSpace Technical Support schrieb am Mittwoch, 17. Mai 2023 um 21:12:32 UTC+2: > Hi Christiane, > > Those warnings when running "yarn install" are normal behavior. They can > be ignored. They are not causing any issues. > > As I mentioned previously, you might want to try starting up the UI > *without* PM2, just to verify it's working properly standalone & trying to > access it on the same machine that is is running on using > http://localhost:4000/. If it works standalone, then something in your > PM2 configuration is the problem. If it doesn't work standalone, then it > might give you more useful errors to work with. As I mentioned, this is > documented in step 6 of the Installation for the UI (called the "Quick > Start"): > https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace#InstallingDSpace-FrontendInstallation > > My best guess is that either the UI is having trouble contacting the > backend... or something in your proxy configuration (in either PM2 or > Apache) is incorrect and is causing things to get confused. > > Tim > > On Friday, May 12, 2023 at 2:03:25 AM UTC-5 c...@leibniz-psychology.org > wrote: > >> Hi there, >> >> I decided to start with a fresh installation of the angular frontend. I >> have following version installed: >> npm version: 9.6.6 >> yarn version: 1.22.19 >> node version: v16.20.0 >> >> execpt for a new config.prod.yml in the config directory, with the >> minimal configuration as stated in the install guide, nothing changed in >> the dspace-angular code checked out from git with tag dspace-7.5 >> >> If I do *yarn install* I get warnings: >> yarn install v1.22.19 >> [1/4] Resolving packages... >> [2/4] Fetching packages... >> [3/4] Linking dependencies... >> warning " > boot...@4.6.2" has unmet peer dependency "jqu...@1.9.1 - 3". >> warning " > boot...@4.6.2" has unmet peer dependency >> "popper.js@^1.16.1". >> warning " > ngx-sor...@11.1.0" has incorrect peer dependency >> "@angular/common@^11.0.0". >> warning " > ngx-sor...@11.1.0" has incorrect peer dependency >> "@angular/core@^11.0.0". >> [4/4] Building fresh packages... >> Done in 124.82s. >> >> Might this be the reason, why it is not working for me. How can I fix >> this. I am new to angular, node,js, yarn & co >> >> Kind regards >> Christiane >> >> >> >> Christiane Baier schrieb am Donnerstag, 11. Mai 2023 um 11:34:34 UTC+2: >> >>> Hi Tim, >>> I went over the troubleshooting guide, but this doesn't help as I don't >>> get any content in the browser, so nothing to see. In the apache logs, I >>> can see, that the host is reached: >>> "GET / HTTP/1.1" 502 6753 >>> but it hrows an error and the following is displayed in my browser: >>> The proxy server received an invalid response from an upstream >>> server. >>> The proxy server could not handle the request >>> Reason: *Error reading from remote server* >>> So no way to see any errors in the browser's Developer Tools. >>> I tried all the suggested steps in the troubleshooting section >>> I can reach my backend wget -v >>> "https://<my-backends-server-name>/server/api" and get an answer >>> similar to the one when calling wget -v " >>> https://api7.dspace.org/server/api"; >>> I did yarn test:rest as suggested in " >>> >>> 1. From [dspace-angular], run yarn test:rest This script will >>> attempt a basic Node.js connection to the REST API that is configured in >>> your "config.prod.yml" file and validate the response." >>> >>> and it went well. >>> >>> If I stop the app with pm2 and start it with >>> node ./dist/server/main.js >>> I get: >>> Building production app config >>> Overriding app config with /dspace-ui-deploy/config/config.yml >>> Overriding app config with /dspace-ui-deploy/config/config.prod.yml >>> Angular config.json file generated correctly at >>> /dspace-ui-deploy/dist/browser/assets/config.json >>> >>> Environment extended with app config >>> >>> dspace-angular >>> Version: 7.5.0 >>> Environment: Production >>> >>> [HPM] Proxy created: / -> >>> https://<my-backends-server-name>/server/sitemaps >>> [10:35:15 GMT+0200 (Mitteleuropäische Sommerzeit)] Listening at >>> http://localhost:4000/ >>> >>> But if I try to reach the site in the browser - same as before. >>> console where I started main.js shows: >>> GET / - - ms - - >>> 1 rules skipped due to selector errors: >>> .custom-file-input:lang(en)~.custom-file-label -> unmatched >>> pseudo-class :lang >>> GET /favicon.ico 404 2723.419 ms - - >>> I get no answer and I get nothing on the console to get a hint what is >>> wrong. >>> netstat -taupe | grep 4000 >>> shows >>> tcp 0 0 localhost:4000 0.0.0.0:* >>> LISTEN dspace 119606 6143/node >>> tcp 0 0 localhost:60110 localhost:4000 >>> VERBUNDEN www-data 119839 5984/apache2 >>> tcp 0 0 localhost:4000 localhost:60110 >>> VERBUNDEN dspace 119840 6143/node >>> >>> I tried the suggestion from Michael. But this doesn't change anything as >>> the system still knows that localhost is 127.0.0.1 >>> In the output of netstat nothing is changed. I even changed the value in >>> the apache config. Same. >>> >>> ipv6 is disabled on the system. >>> If I try >>> wget -v "http://localhost:4000"; >>> I get: >>> --2023-05-10 10:59:16-- http://localhost:4000/ >>> Auflösen des Hostnamens localhost (localhost) … 127.0.0.1, ::1 >>> Verbindungsaufbau zu localhost (localhost)|127.0.0.1|:4000 … verbunden. >>> HTTP-Anforderung gesendet, auf Antwort wird gewartet … Lesefehler (Die >>> Wartezeit für die Verbindung ist abgelaufen) beim Vorspann (header). >>> Erneuter Versuch. >>> >>> I tried enabling mod_headers and put >>> RequestHeader set X-Forwarded-Proto https >>> in the default-ssl.conf of my apache. No change of behavior. >>> >>> So I am completely stuck. >>> Kind Regards >>> Christiane >>> >>> DSpace Technical Support schrieb am Mittwoch, 10. Mai 2023 um 20:33:06 >>> UTC+2: >>> >>> Hi Cristiane, >>> >>> In order to help, we'd need you to look for the underlying error message >>> when you attempt to access the User Interface (or backend, depending on the >>> problem). Here's a troubleshooting guide with details on finding the >>> underlying error: >>> https://wiki.lyrasis.org/display/DSPACE/Troubleshoot+an+error#Troubleshootanerror-DSpace7.x(orabove) >>> >>> We also have a list of common installation issues at the bottom of the >>> install instructions. It's very likely you may be hitting one of these >>> common problems (but it'd be easier to tell which one after you look for >>> underlying errors): >>> https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace#InstallingDSpace-CommonInstallationIssues >>> >>> If you can find more information about the underlying error, it'll be >>> easier to help. >>> >>> You also could try initially running the User Interface manually (not in >>> PM2) just to verify your other configs are correct. That would at least >>> help ensure you have a correct configuration between the frontend & >>> backend. This is documented in step 6 of the Installation for the UI. >>> >>> Tim >>> >>> On Wednesday, May 10, 2023 at 11:11:57 AM UTC-5 >>> c...@leibniz-psychology.org wrote: >>> >>> Hi there, >>> >>> I installed dspace-7.5 angular frontend on a different server, than the >>> backend. It is a ubuntu 22.04 and I did it as outlined in the Installing >>> the frontend section in < >>> https://wiki.lyrasis.org/display/DSDOC7x/Installing+DSpace#InstallingDSpace-InstallingtheFrontend(UserInterface) >>> > >>> I set up a apache proxy like it says in the documentation. Backend >>> (server/api) ist reachable. >>> I set up the config.prod.yml by taking the config.example.yml and >>> changing the value for >>> host: api7.dspace.org to the name of the backend server. HAL-Browser >>> answers at https://backend-server-name/server. So this is not the >>> problem. >>> I set up pm2 (like stated in the documentation) to get more logs, >>> started the application and gave https://angular-server-name-as >>> configured in local.cfg on Backend and apache config on >>> angular-server-name. DNS is working. >>> In the browser I get an error after waiting for minutes "The proxy >>> server received an invalid response from an upstream server. >>> >>> The proxy server could not handle the request >>> >>> Reason: *Error reading from remote server"* >>> >>> and in the pm2 logs this error message shows up. >>> >>> 0|dspace-ui | GET / - - ms - - >>> >>> 0|dspace-ui | 1 rules skipped due to selector errors: >>> >>> 0|dspace-ui | .custom-file-input:lang(en)~.custom-file-label -> >>> unmatched pseudo-class :lang >>> >>> Can somebody tell me what is misconfigured? in config.prod.yml language >>> is set to: >>> defaultLanguage: en >>> That is the entry in the original config.example.yml and I didn't >>> changed it. >>> >>> Kind regards >>> Christiane >>> >>> -- All messages to this mailing list should adhere to the Code of Conduct: https://www.lyrasis.org/about/Pages/Code-of-Conduct.aspx --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. 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