HTTP 404 - Not Found

Support - Assistance technique
#1

I’m new to DHIS2 and trying to install DHIS2 in Windows environments for the first time. I keep getting these error messages: “HTTP 404 – Not Found. Message: The requested resource [/dhis/] is not found. Description: The origin server did not find a current representation for the target resource or is not willing to disclose that one exists.” The software versions I’m using are dhis2-stable-2.34.1.war; apache-tomcat-9.0.37.exe; jdk-8u261-windows-x64.exe; postgresql-12.3-2-windows-x64.exe. I followed these instructions http://dhis-2.blogspot.com/2015/06/dhis2-local-installation-guide-for.html (July 2020) multiple times to make sure it wasn’t user error.

During the Tomcat installation on the Windows 10 system I received the following error messages: “SQL State: 53200; Error Code: 0; Message: ERROR: out of shared memory” multiple times and then at the end “One or more listeners failed to start.” The system is pretty small with only 4 GB memory and an Intel Atom Z8700 CPU. Is my windows 10 system too small?

I also tried to install the same software on a Windows 7 system. Tomcat installed without error messages, but I eventually receive the same HTTP 404 error message when trying to access DHIS2. The only hint I could find was Mohamed Bangura’s request in August 2015, which was solved. However, Mohamed installed DHIS on an ubuntu desktop. How would a solution for Windows 10 or Windows 7 look like? What would I have to do to fix this?

#2

Hi there,

You should look at “logs” folder under your tomcat installation. One of these files will exactly reports any errors that occurred in your installation.

#3

*If you face " ERROR: out of shared memory; HINT: You might need to increase max_locks_per_transaction " error, uncomment #max_locks_per_transaction in …/data/postgresql.conf and set it as max_locks_per_transaction = 1024, restart PostgreSQL service and run Tomcat7.exe again.

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#4

@Kenyuri is right. This more recent requirement is unfortunately not included in the guide, but is mentioned in a separate topic: http://dhis2trainingland.com/eportal/?tutorial=dhis2-404-not-found-error

And also mentioned in the Ubuntu version of the blog:

as well as in the DHIS2 manual:
https://docs.dhis2.org/2.33/en/dhis2_system_administration_guide/installation.html#postgresql-performance-tuning

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#5

Thank you so much, Murod, Raphael and Knut. I very much appreciate your support.
I found the error messages to be not always helpful. I went down a rabbit hole based on the message that the dhis.conf file could not be found, even though I checked the file attributes and set the systems variable for it so many times in all variations imaginable, starting with the one in the setup guide. It didn’t make a difference.
I did set the transaction to 1024, Raphael, and followed the further instructions in the link you sent, Knut, but I still get the same 404 not found message when trying to access dhis2. I had high hopes the JRE_HOME setting would do the trick, since this one was new to me, but that didn’t work either. Is there perhaps another setting that might help? Or another help page?

Again, thank you all. I haven’t even started dhis2 yet, but I already love the community.

#6

P.S. Later entries in the log file showed that the dhis.conf file is eventually found.

#7

@JWSchaefer Kindly share your dhis.conf file.

#8

I used the following settings on my dhis2 instance on windows and it worked
Kindly navigate to C:\Program Files\PostgreSQL\12\data\postgresql.conf
Set the max_connections = 1000 , max_lock_per_transaction = 1024 .

Max conn= 1000
Max conn= 10001083×652 103 KB
Max lock= 1024
Max lock= 10241073×668 42.3 KB

If you encounter any problem kindly contact me on skype live:raphaelkenyuri so that I can assist where necessary.

#9

Thank you for your reply, Raphael. I appreciate it.
The content of the file is from the installation guide. I stored it as dhis.conf (NOT .config) in the DHIS2 base folder on c drive.
Content:

connection.dialect = org.hibernate.dialect.PostgreSQLDialect
connection.driver_class = org.postgresql.Driver
connection.url = jdbc:postgresql:dhis2
connection.username = dhis
connection.password = dhis
connection.schema = update
encryption.password = abcd

#10

Thank you for sharing your postgresql.conf file. I increased the max-connections from 100 to 1000 as suggested. I had already set max_locks_per_transaction to 1024. I also restarted pgAdmin4. The error message when accessing http://localhost:8080/dhis/ is unfortunately still the same.

#11

Kindly try cross checking on everything using the guide on this link http://dhis2trainingland.com/eportal/?tutorial=dhis2-installation-on-windows-local-server

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#12

Hi Johannes,
For myself (DHIS2 v2.33.5, Win10, Tomcat v9, PostgreSQL v12) I have to leave the command-line window open after executing the ‘startup.bat’ file in the Tomcat …\bin folder (e.g. after it displays the ‘INFO [main] org.apache.catalina.startup.Catalina.start Server startup in [157,311] milliseconds’ message) then it works ok accessing http://localhost:8080/dhis/, otherwise it doesn’t if I close it.
See if this works for you… I had some difficulty finding this out over the many times I’ve tried to install DHIS2 to Windows :slight_smile:

#13

Hi Damien,

Thank you so much for your advise. I tried it on the Windows 7 and the Windows 10 system, and unfortunately, at least in my case, leaving the tomcat9.exe window open doesn’t make a difference. Worth a try though, so thank you again.

Best

Johannes