503 Service unavailable in google app engine

Question

Our application is running google app engine with the java version 1.7, google could endpoints- 1.9.38 version. Everything was fine till last 5 days, but now we are getting 503 service unavailable for all the apis.

Cron jobs are running fine, but all cloud endpoints are unavailable.

can you help me in finding the reason for Service unavailable error ? — Sunil Rk, Sep 18 '18 at 08:34
Possible duplicate of [Google App Engine Application Suddenly Stopped Working, returning 503](https://stackoverflow.com/questions/52312107/google-app-engine-application-suddenly-stopped-working-returning-503) — oziomajnr, Sep 18 '18 at 18:39

score 0 · Answer 1 · answered Sep 18 '18 at 16:06

You must be receiving these 503 errors because you are using a deprecated version of Google Cloud Endpoints. You are currently in V1 and need to migrate to V2. Please review this document which describes how to migrate an existing Cloud Endpoints 1.0 app to 2.0 in Java.

503 Service unavailable in google app engine

1 Answers1