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Confluence slow to start on Debian 9

Adam Severns

I can start Confluence manually via the script included (start-confluence.sh), or start it as a service. However, after the service starts, the first page takes 10-20 minutes to load. This did not occur with Debian 8 or even Ubuntu 17.04, which is based on Debian 9. This is a clean install of Debian 9, virtualized. I've allocated 8 processor cores, 4GB RAM, and 32GB SSD space to this VM.

I am a single user with ~20 pages. My automatic backups are about 12MB in size, just to give you an idea.

Running "top" on my Debian host, I can see that... pretty much nothing is happening CPU wise when the main page is not loading. Running a status check on confluence service during this time comes back with it being active.

Also, when will Confluence be able to use systemd for the service natively? I reported the issue months ago, with a fix, and still nothing.

Accepted answers

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AnnWorley

I understand your Confluence instance starts quickly when you use the startup script in <Confluence_Install>/bin but when you start it as a service it takes 10 - 20 minutes for the login page to come up. Is it possible that the environment variables are different when the service is used?

Please tail the logs during the start-up to see what is taking so long. The logging starts with <Confluence_Install>/logs/catalina.out, then when Tomcat is up, the application logs to <Confluence_home>logs/atlassian-confluence.log. Your Debian system logs may also provide a clue.

While I understand the concern, it is unlikely that we will bundle the systemd functionality with Confluence as it is perceived to be an OS function and not part of Confluence.

I agree that the docs should be current. I found your support ticket from May 2017. I opened a request for our technical writers to update Start Confluence Automatically on Linux and included a link to the procedure you recommended in the support ticket.

Adam Severns

Ann, thanks for the quick reply.

Confluence starts slowly when I start it manually or with the service, there is no perceivable difference.

I've located the two logs files mentioned. I stopped Confluence, then deleted the logs. Then started Confluence. So these logs should only contain useful data.

catalina.out looks fine.

atlassian-confluence.log spams this error, once per minute, for 6ish minutes, after which point the GUI becomes accessible:

here is the snippet that repeats: https://pastebin.com/RTayczFX

AnnWorley

That warning message is a health check for collaborative editing:

could not ping the synchrony-proxy [http://127.0.0.1:8090/synchrony-proxy/healthcheck]

If you are using SSL and the healthcheck is using http instead of https you may be running into this: Confluence incorrectly using HTTP protocol to reach synchrony-proxy during healthcheck when running over SSL The suggested workarounds on the bug are to disable the health check or set up a connector in Tomcat just for the health check. Even if it isn't related to SSL, it sounds like that health check is slowing down your start-up so you may consider disabling it to isolate the issue.

I am curious whether Collaborative Editing is working on your instance. If not, please review: Troubleshooting Collaborative Editing There are a lot of variables for ensuring it works.

Adam Severns

Ann,

I do not use SSL. Just using the Confluence default. I took a look in Settings > Collaborative Editing. It said the editing was on, and Synchrony was running. I turned off collaborative editing, but the slow start issues persist.

Per your link, I also added

CATALINA_OPTS="-Dsynchrony.proxy.healthcheck.disabled=true ${CATALINA_OPTS}"

to the bottom of my setenv.sh file. Didn't make a difference. The line wasn't there, I had to add the whole thing.

Any more ideas?

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