I'm trying to get Vaadin7 app working on Google app-engine. I use app-engine sdk 1.8.5 with eclipse juno.
Deployment seems to work since I get:
------------ Deploying frontend ------------
Preparing to deploy:
Created staging directory at: '/tmp/appcfg4530509922106401908.tmp'
Scanning for jsp files.
Scanning files on local disk.
Initiating update.
Cloning 4 static files.
Cloning 8 application files.
Deploying:
Uploading 0 files.
Initializing precompilation...
Deploying new version.
Verifying availability:
Will check again in 1 seconds.
Will check again in 2 seconds.
Will check again in 4 seconds.
Will check again in 8 seconds.
Closing update: new version is ready to start serving.
Updating datastore:
Uploading index definitions.
Deployment completed successfully
However at the end of operation there is a pop-up saying:
An internal error occurred during: "Deploying <app-name> to Google".
java.lang.NullPointerException
Nothing is written to log file and I have no clue what kind of nullpointer is that. Accessing the application from web-browser gives HTTP 500.
Any tips on what can be the reason/possible solution?
Normally, after a successful deployment, the Google App Engine Eclipse plugin launches a browser tab pointing to your-app-id.appspot.com. If this fails, you can get a NullPointerException as you have described.
This is what happens to me, at least, with Eclipse 4.3 (Kepler) and app-engine sdk 1.8.6.
In this situation, your backend has indeed been deployed and it is safe to ignore this error. You will have to, however, launch or refresh your browswer tab manually.
Related
I am deploying a app engine application through cloud shell. I have deployed it a lot of times, but currently when ever I deploy it i gets hanged at the below position and nothing happens:
myname#cloudshell:~stackdriver-metrics-export/list_metrics (my-project)$ gcloud app deploy
Services to deploy:
descriptor: [/home/myname/stackdriver-metrics-export/list_metrics/app.yaml]
source: [/home/myname/stackdriver-metrics-export/list_metrics]
target project: [my-project]
target service: [list-metrics]
target version: [20200703t225313]
target url: [http://list-metrics.my-project.uc.r.appspot.com]
Do you want to continue (Y/n)? Y
Beginning deployment of service [list-metrics]...
// it gets stuck here and nothing happens afterwards I even restarted cloudshell lot of times but the same result, there is no change in the cursor position also. No error is also thrown
Please help me as i am new to cloud shell and google cloud.
This is working now, I am not sure what is the reason, but after i try to download a project from cloudshell to my local machine, strangely I found the project in one of the cloud shell directories itself as duplicate, and I have cleaned all of that, so still not sure of the reason
Check if you have symbolic link or very large file in the same directory. That will cause the system to take along time packaging your deployment.
I have java8 project in Google App Engine . I already deployed one version of it. Now I made some changes and trying to redeploy with same command as before:
mvn package appengine:deploy
But it always fails with message:
Failed to generate quickstart-web.xml
Any idea what to do? I don't know what happened that it suddenly stopped working. Only thing I thought it could be was that I generated indexes for datastore inside Google Shell with .yaml file (java-11 version), so it somehow messed up, but I am not really sure.
The log looks like this
com.google.appengine.tools.admin.AdminException: Unable to stage app: Failed to generate quickstart-web.xml.
at com.google.appengine.tools.admin.AppAdminImpl.stageApplication(AppAdminImpl.java:543)
at com.google.appengine.tools.admin.AppAdminImpl.stageApplicationWithDefaultResourceLimits(AppAdminImpl.java:492)
at com.google.appengine.tools.admin.AppCfg$StagingAction.execute(AppCfg.java:2508)
at com.google.appengine.tools.admin.AppCfg.executeAction(AppCfg.java:363)
at com.google.appengine.tools.admin.AppCfg.<init>(AppCfg.java:211)
at com.google.appengine.tools.admin.AppCfg.<init>(AppCfg.java:118)
at com.google.appengine.tools.admin.AppCfg.main(AppCfg.java:114)
Caused by: java.lang.IllegalStateException: Failed to generate quickstart-web.xml.
at com.google.appengine.tools.admin.Application.createQuickstartWebXml(Application.java:1732)
at com.google.appengine.tools.admin.Application.populateStagingDirectory(Application.java:1002)
at com.google.appengine.tools.admin.Application.createStagingDirectory(Application.java:862)
at com.google.appengine.tools.admin.AppAdminImpl.stageApplication(AppAdminImpl.java:539)
... 6 more
To migrate from Java8 project to Java11 in App Engine Standard, you can follow the next Official Documentation.
While I was deploying my google app engine project (Java) using gradle appengineDeploy my internet connection was interrupted.
I re-deployed the project. Although the console said BUILD SUCCESSFUL, the app engine instance no longer works. No matter how many times I re-deploy or update my application, the logs show nothing but errors:
java.lang.NoClassDefFoundError: com/google/appengine/api/ThreadManager
at
com.google.api.control.extensions.appengine.GoogleAppEngineControlFilter.createClient
(GoogleAppEngineControlFilter.java:61) at
com.google.api.control.ControlFilter.init (ControlFilter.java:141) at
org.eclipse.jetty.servlet.FilterHolder.initialize
(FilterHolder.java:139) at
org.eclipse.jetty.servlet.ServletHandler.initialize
(ServletHandler.java:873) at
org.eclipse.jetty.servlet.ServletContextHandler.startContext
(ServletContextHandler.java:349) at
org.eclipse.jetty.webapp.WebAppContext.startWebapp
(WebAppContext.java:1406) at
com.google.apphosting.runtime.jetty9.AppEngineWebAppContext.startWebapp
(AppEngineWebAppContext.java:175) at
org.eclipse.jetty.webapp.WebAppContext.startContext
(WebAppContext.java:1368) at
org.eclipse.jetty.server.handler.ContextHandler.doStart
(ContextHandler.java:778) at
org.eclipse.jetty.servlet.ServletContextHandler.doStart
(ServletContextHandler.java:262) at
org.eclipse.jetty.webapp.WebAppContext.doStart
(WebAppContext.java:522) at
com.google.apphosting.runtime.jetty9.AppEngineWebAppContext.doStart
(AppEngineWebAppContext.java:120) at
org.eclipse.jetty.util.component.AbstractLifeCycle.start
(AbstractLifeCycle.java:68) at
com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.createHandler
(AppVersionHandlerMap.java:240) at
com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.getHandler
(AppVersionHandlerMap.java:178) at
com.google.apphosting.runtime.jetty9.JettyServletEngineAdapter.serviceRequest
(JettyServletEngineAdapter.java:120) at
com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchServletRequest
(JavaRuntime.java:747) at
com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchRequest
(JavaRuntime.java:710) at
com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run
(JavaRuntime.java:680) at
com.google.apphosting.runtime.JavaRuntime$NullSandboxRequestRunnable.run
(JavaRuntime.java:872) at
com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run
(ThreadGroupPool.java:270) at java.lang.Thread.run (Thread.java:748)
Caused by: java.lang.ClassNotFoundException:
com.google.appengine.api.ThreadManager at
java.net.URLClassLoader.findClass (URLClassLoader.java:381) at
com.google.apphosting.runtime.ApplicationClassLoader.findClass
(ApplicationClassLoader.java:135) at java.lang.ClassLoader.loadClass
(ClassLoader.java:424) at java.lang.ClassLoader.loadClass
(ClassLoader.java:357)
Is there some way for me to clear out the partial build (or whatever there may be) in google app engine?
I tried deleting all versions and instances (you cannot delete them all, it won't let you delete the serving one).
I tried increasing the version number in appengine-web.xml.
I tried gradle clean.
I tried disabling and enabling the application in the google cloud console.
No luck.
One idea I have is maybe if I can somehow force all the files for the app to be uploaded again? Because with gradle appengineDeploy only the changed files get uploaded.
EDIT:
I managed to fix one part of this by upgrading classpath 'com.google.cloud.tools:appengine-gradle-plugin:2.2.0' in my gradle to the latest version. (Felt kind of hackish to do that and not reliable in the future if this happens again.) Maybe this flushed whatever was in app engine or something by doing that. I still have one problem remaining:
I am using the firebase admin SDK to send firebase cloud messages (authenticated with a .json credentials file) like this:
FirebaseMessaging.getInstance().send(msg);
When I do I am getting this error:
com.google.firebase.messaging.FirebaseMessagingException: Unexpected
HTTP response with status: 401; body: null
Which is strange because other parts of the firebase admin SDK are working (like writing/reading from firestore).
So there is still something weird going on and I think it has to do with the fact that as I was uploading my google app engine project the connection was interrupted.
EDIT 2:
Here is something interesting: When I deploy my application using gcloud app deploy appengine-web.xml the application again will not work. Deploying with gradle appengineDeploy does though. I also noticed that the size of the application is shown as much smaller in the GCP console when deploying with gcloud app deploy appengine-web.xml. So something is messed up here. I tried looking up some sort of gcloud command to clear cache? Or something like that but no luck.
EDIT 3:
Additional Info:
My app was already deployed and working before the failed attempt. I changed one small piece of code in a function and upon uploading the app, the connection was interrupted because the internet went out.
I am on app engine standard environment.
I am deploying my application from the macOS terminal and using android studio to develop.
I have tried the stopPreviousVersion promote and version configs in gradle (actually the first two are true by default and version gets auto-generated if you do not set it).
Running gcloud app deploy appengine-web.xml --verbosity=debug shows a lot of sensitive information but one thing I am seeing is all the files in WEB-INF are being skipped:
DEBUG: Skipping upload of [WEB-INF/....
INFO: Incremental upload skipped 100.0% of data
DEBUG: Uploading 0 files to Google Cloud Storage
DEBUG: Using [16] threads
So perhaps files are not all being uploaded? This SO post raises a similar problem but has no solution: stackoverflow.com/q/42137452/3075340
It's weird but when I do gcloud app deploy, the app won't work at all. There are run-time errors all over the place. Doing gradle appengineDeploy fixes that but I still am having the firebase-admin issue.
To actually answer your question, GAE uses a staging bucket to cache files.
You can delete this bucket, and it will get recreated next time you try to deploy.
The bucket is always named staging.[PROJECT-ID].appspot.com. It should show on the buckets overview page
Just to be clear, I'm not anywhere near sure that this will actually resolve your issue, but this will most definitely clear whatever files GAE cached
Here there was a discussion on a, more or less, similar issue on App Engine from last year.
You can use it as a source of inspiration to fix your current issue, because I think they are really similar as a concept. From there I think it may worth trying to put the appengine-api-1.0-sdk-1.9.63.jar ( or whatever your version is ) file under WEB-INF/lib.
It the same post there were some guys who found out the there was a problem with gcloud v194 and switching to another version fixed the issue.
Here there is a similar issue which was resolved by upgrading the gcloud tool.
Anyhow, this behaviour is not normal and things should not work like this. You can try to find a workaround, but my recommendation is to report the issue and let an App Engine engineer taking a look over it. There are good chances to be something internal.
Edit: Google Cloud at its finest. Made absolutely no changes but deployed fine this morning.
Error after ~10m of deployment (10+ deploy attempts).
I've changed the app to add a simply function with less than 10 lines of code. It has no affect on libraries and uses native python only and hence I'm not sure how it can affect the deployment.
I've tested the app and it runs fine locally.
Here is the error that I get:
ERROR: (gcloud.app.deploy) Cloud build failed. Check logs at
https://console.cloud.google.com/xxxxxxxx/ Failure status: UNKNOWN:
Error Response: [4] DEADLINE_EXCEEDED
Previously to that, logs don't show any errors, in fact everything is going as expected.
Newest entries first:
9302e2430a0e: Pushed
4f56eb74b6bf: Pushed
21df82f90a72: Layer already exists
f0e2b3558b28: Layer already exists
99c71ba2c817: Layer already exists
2483da9621d1: Layer already exists
af09d2110abe: Layer already exists
d968669f4b42: Pushed
4b1e707066a6: Layer already exists
55530b72c8c8: Layer already exists
62c169a7d462: Layer already exists
According to this you can change the build timeout setting with:
gcloud config set app/cloud_build_timeout 1000
Setting it to 1000 seconds in this example.
I have this problem too when deploying my custom image to AppEngine flex. My image requires a few ML models and takes around 2 hours to build and GAE does not seem to like it.
To build your container images outside of Google Cloud Platform, you must first upload your images to a container image repository before you can deploy your images to App Engine with the gcloud app deploy command.
In short, push your image to Google Container Registry or container image repository of your choice, then deploy with this command
gcloud app deploy --image-url gcr.io/YOUR_PROJECT_ID/YOUR_CONTAINER_IMAGE
More info here and here
For my case, I've found out the problem was that I have the same version for all gcloud app deploy command.
When there's traffic, the deployment will timeout.
After finishing my project, I have right clicked on my project in order to deploy it on Google App Engine. In the available option when I clicked on "Deploy To Google App Engine" It is redirecting me to a browser asking some permissions. When I accept it, it ends up with a page with some token with a message that "Please copy this code, switch to your application and paste it there:"
At the same time in Netbeans console I am seeing the error
.Please enter code: Either the access code is invalid or the OAuth token is revoked.Details: invalid_grant
I did not get any popup to enter the authentication token I got from Google.
Where to enter this code ?
I am using Netbeans 7.3.
I had the same issue. I just deployed from the terminal using the update exec found in the App Engine SDK bin directory (Java App Engine).
So my command was:
$ ./appcfg.sh update ~/Development/path_to_app
This way you may enter the authcode into the terminal. Afterwards you should be able to deploy via NetBeans (make sure you have set email and password in NetBeans).
I Just had this issue couple of days ago.
Excuse me if I do not explain it right, just let me know it is my first post.
To solve it, you would need to run the cmd. Go to start and run cmd.
Navigate to C:\appengine-java-sdk-1.9.17\bin or whichever your appengine location is then type:
appcfg update "C:/path/to/app/directory/"
then it will run and show you the place to put the code.
For example:
C:\Ali\appengine-java-sdk-1.9.27\bin>appcfg update "C:\Users\almiskea\Documents\NetBeansProjects\WebApplication5\web"
Please enter code:
after you put it, this will show up:
Reading application configuration data...
Beginning interaction for module default...
0% Created staging directory at: C:\Users\almiskea\AppData\Local\Temp\appcfg7644042675237095331.tmp
5% Scanning for jsp files.
8% Compiling jsp files.
20% Scanning files on local disk.
25% Initiating update.
28% Cloning 13 application files.
40% Uploading 4 files.
52% Uploaded 1 files.
61% Uploaded 2 files.
68% Uploaded 3 files.
73% Uploaded 4 files.
77% Initializing precompilation...
80% Sending batch containing 4 file(s) totaling 5KB.
90% Deploying new version.
95% Closing update: new version is ready to start serving.
98% Uploading index definitions.
Update for module default completed successfully.
Success.
Cleaning up temporary files for module default...
Then your application is deployed.