nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

502 Bad Gateway after Cloud Migration

Dirk Wunderlich

Hello Community,

We have been experiencing the following problem since last night:

We have migrated several Spaces to the cloud. This has been done last night.
Now I wanted to look at our locally installed Confluence and got the error 502 - Bad Gateway.
I restarted the server, but without success.

What is the best analysis path I can take here? What logs might be helpful?

I have attached in the contents of our server.xml, as well as the nginx.conf.dpkg-dist here once:

server.xml:

<Server port="8000" shutdown="SHUTDOWN" debug="0">
<Service name="Tomcat-Standalone">
<!--
==============================================================================================================
DEFAULT - Direct connector with no proxy, for unproxied HTTP access to Confluence.

If using a http/https proxy, comment out this connector.
==============================================================================================================
-->

<!--
==============================================================================================================
HTTP - Proxying Confluence via Apache or Nginx over HTTP

If you're proxying traffic to Confluence over HTTP, uncomment the connector below and comment out the others.
Make sure you provide the right information for proxyName and proxyPort.

For more information see:
Apache - https://confluence.atlassian.com/x/4xQLM
nginx - https://confluence.atlassian.com/x/TgSvEg

==============================================================================================================
-->

<!--
==============================================================================================================
HTTPS - Direct connector with no proxy, for unproxied HTTPS access to Confluence.

For more info see https://confluence.atlassian.com/x/s3UC
==============================================================================================================
-->

<!--
==============================================================================================================
HTTPS - Proxying Confluence via Apache or Nginx over HTTPS

If you're proxying traffic to Confluence over HTTPS, uncomment the connector below and comment out the others.
Make sure you provide the right information for proxyName and proxyPort.

For more information see:
Apache - https://confluence.atlassian.com/x/PTT3MQ
nginx - https://confluence.atlassian.com/x/cNIvMw
==============================================================================================================
-->

ngix.conf.dpkg-dist

user nginx;
worker_processes auto;

error_log /var/log/nginx/error.log notice;
pid /var/run/nginx.pid;

events {
worker_connections 1024;
}

http {
include /etc/nginx/mime.types;
default_type application/octet-stream;

log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';

access_log /var/log/nginx/access.log main;

sendfile on;
#tcp_nopush on;

keepalive_timeout 65;

#gzip on;

include /etc/nginx/conf.d/*.conf;
}

We have not made any changes to the system aside from migrating to the cloud. What can I check novh?

Thanks a lot!

Accepted answers

All comments

Vishwas

Hi @Dirk Wunderlich

server.xml looks fine.

You can start looking at confluence log files it will be like this in confluence home directory.

path: <confluence-home>/logs/atlassian-confluence.log.

If you can paste the ERROR from log file we can see what is the exact issue.

Usually 502 error bad gateway ,that is your reverse proxy server is running but confluence has some issues starting.

Regards,

Vishwas

Dirk Wunderlich

Hi @Vishwas

thanks for your response. The log is currently uhm... a bit strange... Here the last lines. Some entries this night, after this a big nothing and for now two lines:

2021-12-18 04:07:56,848 WARN [Caesium-1-1] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job LaasPerformanceLoggingJob#LaasPerformanceLoggingJob completed unsuccessfully with response JobRunnerResponse[runOutcome=ABORTED,message='LaaS performance logging is turned off']
2021-12-18 04:12:56,849 WARN [Caesium-1-4] [impl.schedule.caesium.JobRunnerWrapper] runJob Scheduled job LaasPerformanceLoggingJob#LaasPerformanceLoggingJob completed unsuccessfully with response JobRunnerResponse[runOutcome=ABORTED,message='LaaS performance logging is turned off']
2021-12-18 08:34:38,582 INFO [Catalina-utility-1] [com.atlassian.confluence.lifecycle] contextInitialized Starting Confluence 7.2.0 [build 8401 based on commit hash 912a577971fe711d4a876d9130277d03b009a0bf] - synchrony version 3.1.0-master-0f086db5
2021-12-18 08:34:46,526 INFO [Catalina-utility-1] [springframework.web.context.ContextLoader] initWebApplicationContext Root WebApplicationContext: initialization started
2021-12-18 08:34:55,415 INFO [Catalina-utility-1] [com.atlassian.confluence.lifecycle] <init> Loading EhCache cache manager
2021-12-18 13:14:47,445 INFO [Catalina-utility-1] [com.atlassian.confluence.lifecycle] contextInitialized Starting Confluence 7.2.0 [build 8401 based on commit hash 912a577971fe711d4a876d9130277d03b009a0bf] - synchrony version 3.1.0-master-0f086db5
2021-12-18 13:14:51,093 INFO [Catalina-utility-1] [springframework.web.context.ContextLoader] initWebApplicationContext Root WebApplicationContext: initialization started
2021-12-18 13:15:16,981 INFO [Catalina-utility-1] [com.atlassian.confluence.lifecycle] contextInitialized Starting Confluence 7.2.0 [build 8401 based on commit hash 912a577971fe711d4a876d9130277d03b009a0bf] - synchrony version 3.1.0-master-0f086db5
2021-12-18 13:15:20,745 INFO [Catalina-utility-1] [springframework.web.context.ContextLoader] initWebApplicationContext Root WebApplicationContext: initialization started
2021-12-18 13:15:25,730 INFO [Catalina-utility-1] [com.atlassian.confluence.lifecycle] <init> Loading EhCache cache manager
2021-12-18 13:15:42,473 INFO [Catalina-utility-1] [springframework.web.context.ContextLoader] initWebApplicationContext Root WebApplicationContext initialized in 21727 ms
2021-12-18 13:15:43,904 INFO [Catalina-utility-1] [atlassian.plugin.manager.DefaultPluginManager] lambda$earlyStartup$3 Plugin system earlyStartup begun
2021-12-18 13:15:45,155 WARN [Catalina-utility-1] [org.twdata.pkgscanner.ExportPackageListBuilder] logDuplicateWarning Package Scanner found duplicates for package 'com.atlassian.integration.jira.applinks' with different versions. Files: jira-integration-spi-6.2.0.jar and confluence-7.2.0.jar
'/opt/atlassian/confluence/confluence/WEB-INF/lib/jira-integration-spi-6.2.0.jar'
'/opt/atlassian/confluence/confluence/WEB-INF/lib/confluence-7.2.0.jar'
2021-12-18 13:15:48,358 WARN [FelixStartLevel] [extender.internal.support.ExtenderConfiguration] addDefaultDependencyFactories Gemini Blueprint extensions bundle not present, annotation processing disabled.

The last ERROR we recieved this night at 03:15:

2021-12-18 03:15:50,379 ERROR [http-nio-8090-exec-11] [confluence.plugins.synchrony.SynchronyContextProvider] getContextMap
-- url: /pages/createpage-entervariables.action | traceId: 486a6ea2d1d82995 | userName: anonymous | action: createpage-entervariables
2021-12-18 03:15:51,547 ERROR [http-nio-8090-exec-8] [confluence.plugins.synchrony.SynchronyContextProvider] getContextMap
-- url: /pages/createpage-entervariables.action | traceId: ec6fb2917277e678 | userName: anonymous | action: createpage-entervariable