Troobleshooting: Unable to connect to Gallery after upgrading server from 2018.3 to 2019.3

[vincent_peiro]

Hi,

I just upgraded Alteryx server from 2018.3 to 2019.3.

During upgrade process, I had to upgrade MongoDB from 3 to 4.

Everything looks fine. But since the upgrade process finished, I'm unable to connect to Galley.

I encounter the following message : 

{"data":null,"exceptionName":"UnavailableException","innerExceptionMessage":"","message":"The system is currently undergoing maintenance. Please try your request again later." 

 and in the Gallery log file there are the following lines (SELVES is my server name) :

2019-11-15 12:52:56.140870;INFO;39;AuthorizationMessageInspector;AfterReceiveRequest;c2f43845c368476e8b99dd1b93a9360e;unauthenticated;10.2.32.168;SELVES;;GET;/gallery/api/status/ping/;;-1;CloudRequest;
2019-11-15 12:52:56.140870;INFO;39;AuthorizationMessageInspector;AfterReceiveRequest;c2f43845c368476e8b99dd1b93a9360e;unauthenticated;10.2.32.168;SELVES;;GET;/gallery/api/status/ping/;;-1;Migration 0 is running.;
2019-11-15 12:52:56.140870;ERROR;39;ErrorHandler;HandleError;c2f43845c368476e8b99dd1b93a9360e;unauthenticated;10.2.32.168;SELVES;;GET;/gallery/api/status/ping/;;-1;Exception caught by ErrorHandler and marshalled to client;Alteryx.Cloud.Common.Exceptions.UnavailableException: The system is currently undergoing maintenance. Please try your request again later.->   à Alteryx.Cloud.Server.AuthorizationMessageInspector.AfterReceiveRequest(Message& request, IClientChannel channel, InstanceContext instanceContext)->   à System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.AfterReceiveRequestCore(MessageRpc& rpc)->   à System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage2(MessageRpc& rpc)->   à System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage11(MessageRpc& rpc)->   à System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)
2019-11-15 12:52:56.427885;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;Database requires migration from 20 to 24.  Attempting to obtain lock...;
2019-11-15 12:52:56.432888;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;...lock could not be obtained.  Another process is likely performing a migration.  Please standby.;
2019-11-15 12:52:57.436946;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;Database requires migration from 20 to 24.  Attempting to obtain lock...;
2019-11-15 12:52:57.436946;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;...lock could not be obtained.  Another process is likely performing a migration.  Please standby.;
2019-11-15 12:52:58.446004;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;Database requires migration from 20 to 24.  Attempting to obtain lock...;
2019-11-15 12:52:58.446004;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;...lock could not be obtained.  Another process is likely performing a migration.  Please standby.;
2019-11-15 12:52:59.455105;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;Database requires migration from 20 to 24.  Attempting to obtain lock...;
2019-11-15 12:52:59.460063;FATAL;1;Runner;MigrateDatabase;;;;SELVES;;;;;;...lock could not be obtained.  Another process is likely performing a migration.  Please standby.;

I tried to stop and start Alteryx service serveral times but the problem remains

Does anybody could help me ?

Regards

Vincent

[MichalM]

@vincent_peiro 

Has the database migration completed successfully when upgrading? 

[vincent_peiro · Accepted solution]

Hi

The database migration completed successfully.

But the problem was still present.

The problem was solved by support.

As the server I tried tu upgrade was a clone of my production server VM, the old server name appeared to be still registered somewhere on the mongo database.

The following procedure solved my problem:

#1 Enter Mongo shell – open command line as an admin

#2 Change to Alteryx bin directory – for the default enter:
cd "\Program Files\Alteryx\bin"

#3 Connect to the Mongo Shell
mongo localhost:27018/AlteryxGallery -u user -p <PWD>

#4 Open the database
use AlteryxGallery

#5 You should see some type of welcome message to indicate you got in successfully

#6 Verify the presence of locks
Enter: db.locks.find()

#7 It should return 1-2 locks

#8 Remove the locks
db.locks.remove({})

#9 Exit MongoDB
exit

[MichalM · Accepted solution]

Glad to hear! Thanks for sharing.

[Sieuwkje]

Thank you for this post!

We encountered a similar problem when moving Alteryx server and this did the trick!

[nikhil_bhandarkar]

Thanks, worked brilliantly on our 2018.02 to 2019.3.6 migration to new host + upgrade

Potentially saved us few days worth of investigation.