Problems with microservices in prod mode

Matt Raible

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Jun 19, 2017, 8:14:26 PM6/19/17

to JHipster dev team

Hey all,

I’m creating a microservices tutorial with JHipster for an upcoming blog post. You can see it at the following URL:

https://github.com/oktadeveloper/jhipster-microservices-example/blob/qa/TUTORIAL.md

Warning: this URL will 404 once the blog post is published.

Everything works great when I run it using Maven. However, when I try to use Docker Compose, Kubernetes, or Maven in “prod” mode, it fails. Here’s the two issues:

1. I’m able to add an “entry”, but after doing so, the “getAllEntries” fails. Console error is:

2017-06-19 18:08:06.930 ERROR 17597 --- [ XNIO-2 task-62] o.j.b.w.rest.errors.ExceptionTranslator : An unexpected error occured: Unable to access lob stream; nested exception is org.hibernate.HibernateException: Unable to access lob stream

2. I’m not add any “product” entities. I’m able to view the UI (because it’s on the gateway), but when I try to post one, I get:

2017-06-19 18:12:15.592 WARN 17597 --- [ XNIO-2 task-67] o.s.c.n.zuul.web.ZuulHandlerMapping : No routes found from RouteLocator

Any ideas?

To reproduce:

git clone https://github.com/oktadeveloper/jhipster-microservices-example.git

cd jhipster-microservices-example/docker

docker-compose up

Log in to http://localhost:8080, add an entry. Then try adding a product.

Thanks,

Matt

Matt Raible

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Jun 19, 2017, 10:56:39 PM6/19/17

to JHipster dev team

Correction - issue #2 only happens when running in Minikube. It doesn’t happen when running with docker-compose. Running with docker-compose does surface a new issue: missing translations.

Matt Raible

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Jun 20, 2017, 10:08:38 AM6/20/17

to JHipster dev team

On Jun 19, 2017, at 6:14 PM, Matt Raible <ma...@raibledesigns.com> wrote:

Hey all,

I’m creating a microservices tutorial with JHipster for an upcoming blog post. You can see it at the following URL:

https://github.com/oktadeveloper/jhipster-microservices-example/blob/qa/TUTORIAL.md

Warning: this URL will 404 once the blog post is published.

Everything works great when I run it using Maven. However, when I try to use Docker Compose, Kubernetes, or Maven in “prod” mode, it fails. Here’s the two issues:

1. I’m able to add an “entry”, but after doing so, the “getAllEntries” fails. Console error is:

2017-06-19 18:08:06.930 ERROR 17597 --- [ XNIO-2 task-62] o.j.b.w.rest.errors.ExceptionTranslator : An unexpected error occured: Unable to access lob stream; nested exception is org.hibernate.HibernateException: Unable to access lob stream

This seems to be a known issue with Postgres and was reported last year.

https://github.com/hipster-labs/generator-jhipster-entity-audit/issues/32

Adding @Transactional to my getAllEntries() method solves the problem.

Still working on the issue below…

Matt Raible

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Jun 20, 2017, 10:25:48 AM6/20/17

to JHipster dev team

This issue (translation-not-found) happens in dev mode too. It seems there’s a bug in “jhipster entity” when generating the UI from a microservice. The resulting product.json in my gateway looks as follows:

{

"blogApp": {

"product" : {

"home": {

"title": "Products",

"createLabel": "Create a new Product",

"createOrEditLabel": "Create or edit a Product",

"search": "Search for Product"

},

"delete": {

"question": "Are you sure you want to delete Product {{ id }}?"

},

"detail": {

"title": "Product"

},

"name": "Name",

"price": "Price"

}

},

"storeApp": {

"product" : {

"created": "A new Product is created with identifier {{ param }}",

"updated": "A Product is updated with identifier {{ param }}",

"deleted": "A Product is deleted with identifier {{ param }}"

}

It seems like the created/updated/deleted keys should be under the “blogApp” instead of “storeApp”. Is that correct?

Thanks,

Matt

Matt Raible

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Jun 20, 2017, 2:12:36 PM6/20/17

to JHipster dev team

On Jun 19, 2017, at 6:14 PM, Matt Raible <ma...@raibledesigns.com> wrote:

Hey all,

I’m creating a microservices tutorial with JHipster for an upcoming blog post. You can see it at the following URL:

https://github.com/oktadeveloper/jhipster-microservices-example/blob/qa/TUTORIAL.md

Warning: this URL will 404 once the blog post is published.

Everything works great when I run it using Maven. However, when I try to use Docker Compose, Kubernetes, or Maven in “prod” mode, it fails. Here’s the two issues:

1. I’m able to add an “entry”, but after doing so, the “getAllEntries” fails. Console error is:

2017-06-19 18:08:06.930 ERROR 17597 --- [ XNIO-2 task-62] o.j.b.w.rest.errors.ExceptionTranslator : An unexpected error occured: Unable to access lob stream; nested exception is org.hibernate.HibernateException: Unable to access lob stream

2. I’m not add any “product” entities. I’m able to view the UI (because it’s on the gateway), but when I try to post one, I get:

2017-06-19 18:12:15.592 WARN 17597 --- [ XNIO-2 task-67] o.s.c.n.zuul.web.ZuulHandlerMapping : No routes found from RouteLocator

I was able to fix this by upgrading to JHipster Registry 3.0.2 in my Docker and Kubernetes files. However, when I deploy to Google Cloud, my “store” app is not registered and I’m unable to add products.

Running `kubectl logs jhipster-registry-0` gives me the following info:

2017-06-20 18:10:31.909 WARN 7 --- [nfoReplicator-0] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failed with message: Illegal character in authority at index 7: http://admin:${jhipster.registry.password}@jhipster-registry-1.jhipster-registry.default.svc.cluster.local:8761/eureka/

2017-06-20 18:10:31.909 ERROR 7 --- [nfoReplicator-0] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error

java.lang.IllegalArgumentException: Illegal character in authority at index 7: http://admin:${jhipster.registry.password}@jhipster-registry-0.jhipster-registry.default.svc.cluster.local:8761/eureka/

at java.net.URI.create(URI.java:852)

at com.sun.jersey.api.client.Client.resource(Client.java:434)

at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.register(AbstractJerseyEurekaHttpClient.java:50)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59)

at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59)

at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.java:118)

at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:79)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59)

at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:119)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59)

at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77)

at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56)

at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:798)

at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:104)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)

at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.net.URISyntaxException: Illegal character in authority at index 7: http://admin:${jhipster.registry.password}@jhipster-registry-0.jhipster-registry.default.svc.cluster.local:8761/eureka/

at java.net.URI$Parser.fail(URI.java:2848)

at java.net.URI$Parser.parseAuthority(URI.java:3186)

at java.net.URI$Parser.parseHierarchical(URI.java:3097)

at java.net.URI$Parser.parse(URI.java:3053)

at java.net.URI.<init>(URI.java:588)

at java.net.URI.create(URI.java:850)

... 24 common frames omitted

Matt Raible

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Jun 20, 2017, 2:29:33 PM6/20/17

to JHipster dev team

On Jun 20, 2017, at 12:13 PM, Matt Raible <ma...@raibledesigns.com> wrote:

On Jun 19, 2017, at 6:14 PM, Matt Raible <ma...@raibledesigns.com> wrote:

Hey all,

I’m creating a microservices tutorial with JHipster for an upcoming blog post. You can see it at the following URL:

https://github.com/oktadeveloper/jhipster-microservices-example/blob/qa/TUTORIAL.md

Warning: this URL will 404 once the blog post is published.

Everything works great when I run it using Maven. However, when I try to use Docker Compose, Kubernetes, or Maven in “prod” mode, it fails. Here’s the two issues:

1. I’m able to add an “entry”, but after doing so, the “getAllEntries” fails. Console error is:

2017-06-19 18:08:06.930 ERROR 17597 --- [ XNIO-2 task-62] o.j.b.w.rest.errors.ExceptionTranslator : An unexpected error occured: Unable to access lob stream; nested exception is org.hibernate.HibernateException: Unable to access lob stream

2. I’m not add any “product” entities. I’m able to view the UI (because it’s on the gateway), but when I try to post one, I get:

2017-06-19 18:12:15.592 WARN 17597 --- [ XNIO-2 task-67] o.s.c.n.zuul.web.ZuulHandlerMapping : No routes found from RouteLocator

I was able to fix this by upgrading to JHipster Registry 3.0.2 in my Docker and Kubernetes files. However, when I deploy to Google Cloud, my “store” app is not registered and I’m unable to add products.

Running `kubectl logs jhipster-registry-0` gives me the following info:

Nevermind about the error below, the store eventually came up and I was able to add products.