I've got ArgoCD running on OpenShift, and one Ingress it's trying to sync has been stuck in "Progressing" for quite a while now. Is there anywhere I can check to determine whether any progress is still being made, or what it's stuck on? How can I troubleshoot when ArgoCD reports no errors?
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this is my first question, hope I do it right!
I'm actually working on a Centos server with nginx as reverse proxy and a NextJs web application.
Until now I've made a single connection for every query to my db, but I want to switch to pool connection to my DB (with npm module mysql2), but apparently there's something I'm missing...
If I run my application local, or on the server without nginx, with yarn start, it opens just one pool (I can see them by running the query SHOW PROCESSLIST on the DB in use). But in the moment I add nginx as reverse proxy, every request my app receives opens a pool and the latter never gets closed or called again (apart from the one pool opened if someone visits the page for which I use the nextjs function router.push(/url)).
It happens also if I run yarn dev: it opens a connection pool for every new page next has to build in development or if I make some changes to pages and save. But this behaviour I understand.
The nginx configuration is a normal configuration, and everything works fine.
I've surfed the web far and wide, but didn't find anything that could help me understand what could be going on between nginx-next-mysqldb, and no one reported any problem whatsoever. Is this how it's supposed to be or there's something that I should do to make it work?
Oops... my bad...
Transitioning from single db connections to pool, I left a function which made a single connection, which I was not closing.
So there's no problem and nothing to uncover behind nginx-next-mysql.
Don't know if anyone will stumble upon this problem, ever, but, just make sure you don't have any single connection to your db... And make sure to close them :)
To give some background, I'm an (unpaid) intern, and I'm unrelated to dealing with this kind of stuff. My employers wanted to update some pictures, and they did locally but didn't know how to upload the new version to the server.
I used the publish settings that were saved in Visual Studio from when the previous intern deployed the server (he was specialized in web site stuff) and it worked on deploy ... then I refreshed the page and I'm getting 502 server error.
Steps I have taken:
Connect to the VM and restart it - didn't solve it. it's using Microsoft server 2016.
Open the VM trough RDP, check if there are errors. There were 3 services not running, and I start them manually. One still isn't running, Downloaded Maps Manager. Ok... I google it and it's not a necessary service so I disable it. Now there are no errors and all services are running but I still am getting this error.
I tried pinging the IP of the server, and the URL itself and it works.
I believe it might be something to do with the load balancer, but I had one HTML class and nothing dealing with actually publishing stuff. If you could point me in the right direction I would appreciate it. The only reason why I'm trying to fix this myself is that I didn't make some kind of backup, and I feel so stupid having taken the site down.
Edit: I've gone to "load balancing" and it says service unhealthy. I tried going to the IPs there and it brings me to the same 502 server error page. From what I've gathered this is a configuration error, it's impossible they messed something with the site itself, right? It did work that first time, and if I run it from Visual Studio it works on the local machine ...
I have an application deployed on Openshift Online v3 starter plan which (used to) run well until yesterday. Yesterday I had to publish a new version of my application. Apparently, the platform encountered some problems redeploying it, I had to cancel some processes which seemed locked or continually restarting.
Finally I managed to have my pod running with the new version, the logs look fine.
The issue now is that my app is no longer exposed. When hitting the URL which was assigned to me, I got the infamous "not available" OO page:
Application is not available
The application is currently not serving requests at this endpoint. It may not have been started or is still starting.
Possible reasons you are seeing this page:
The host doesn't exist. Make sure the hostname was typed correctly and that a route matching this hostname exists.
The host exists, but doesn't have a matching path. Check if the URL path was typed correctly and that the route was created using the desired path.
Route and path matches, but all pods are down. Make sure that the resources exposed by this route (pods, services, deployment configs, etc) have at least one pod running.
I checked these 3 suggestions, and got sure that my host existed, that the path was correct, and that my pods where up. So, not understanding what the real issue was, I dropped the existing route and created a new one.
It's been 2 hours now, and the route UI keeps displaying this message:
The route is not accepting traffic yet because it has not been admitted by a router.
My understanding is that the router which should admit my route is not part of my project, it is managed by Openshift Online, am I right ?
So what could I do now to unlock my new route ?
Thanks for your suggestions
There it is ! My application is reachable again at last : It took 2 days for the router to setup my route. No action required from my part.
But the starter platform is still experiencing difficulties, so I will avoid any redeployment until the status turns green again.
I'm getting the following error intermittently when making a call from my ASP.Net MVC web application which is using Dapper to query MySQL.
Unable to connect to any of the specified MySQL hosts.
The exception only occurs when my web app is published to Azure. It has worked 100% of the time when I run the code locally. I've deployed the code to a second azure website, and also get the exception there, again intermittently.
The MySQL database is running on an Azure VM (Ubuntu). This server also has some R scripts that access the database, which are being run at a set interval. I've had no connectivity issue with these either. It is just the .Net code that's struggling.
I've scoured the web, but don't feel like I've turned up anything of value. Most of the links have pointed to a connection string problem, but since it works intermittently that doesn't seem to fit my problem. Some links have referenced DNS issues, but I'm getting the same problem when I use the IP Address instead of the machine name for the DNS server.
I'm sure I need to track down more information, but I'm not sure where it would be. This is my first foray into using a MySQL db in this fashion, and I'm not familiar with config options or log files on that side of things. I feel similarly about Azure websites with database interactions too.
What can I try next?
Just to drive home the point about this error being intermittent, here's a screenshot from the Runscope job that's hitting the page (thus triggering the MySQL query) every 5 minutes:
I was able to fix (or perhaps "circumvent") this problem by adding the --skip-host-cache flag to our mysql configuration file. I still don't fully understand what the root of the problem is, but we haven't had any issues with MySQL connectivity from the Azure website since adding that.
Our team started using mercurial about a month ago and it was a rough start, but it's working out well now. At the end of last week though, we suddenly had issues pulling from each other's repositories.
Normally, I would pull from, for example, prog12:800, and it would work great. Now, I get the message
URLError: [Errno 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
The hg server is running, and it's not a firewall issue. This issue only occurs when trying to access my repo and two other people's. Accessing everyone else's, and the one on our webdev server, is fine. We are all on the same lan (though two of us connect via vpn) We all have the same issue - from my own computer, i can type in my computer name:8000 and it works, but no one else can see it.
I appreciate any suggestions!
It it possible your IT department deployed something that's acting as a firewall on each machine? Being able to connect to your own port 8000, but not others' just screams firewalls.
That said, most people don't actually run hg serve on developer boxes. Instead you let each developer freely create repos on the "central" "webdev" box. So I might create 'work-in-progress-ry4an' and do push/pull from there, and other can pull from it.
The hg serve functionality is a great way to pass someone some quick changesets, but not built to be used as an always-on server.