I've come back to a #SpringBootApplication project that uses spring-geode-starter with version 1.2.4 although the same error happens with upgrades to 1.5.6 version.
It sets up a Geode client using
#Component
#EnableClusterDefinedRegions(clientRegionShortcut=ClientRegionShortcut.PROXY)
and in order to register interest subscriptions over HTTP, also
#Configuration
#EnableGemFireHttpSession
with a bean
#Bean
public ReactiveSessionRepository<?> reactiveSessionRepository() {
return new ReactiveMapSessionRepository(new ConcurrentHashMap<>());
}
On starting the application the spring data geode client connects to the server (Geode version 1.14) and auto copies regions back to the client, which is great.
However, after all the region handles are copied over, there's an error with the #EnableGemFireHttpSession which is
Error creating bean with name 'ClusteredSpringSessions' defined in class path resource [org/springframework/session/data/gemfire/config/annotation/web/http/GemFireHttpSessionConfiguration.class] and [gemfirePool] is not resolvable as a Pool in the application context
The first info message in the logs is:
org.springframework.session.data.gemfire.config.annotation.web.http.GemFireHttpSessionConfiguration 1109 sessionRegionAttributes: Expiration is not allowed on Regions with a data management policy of PROXY
org.springframework.data.gemfire.support.AbstractFactoryBeanSupport 277 lambda$logInfo$3: Falling back to creating Region [ClusteredSpringSessions] in Cache [Web]
So the client is trying to create a region ClusteredSpringSessions but it can't. The problem appears to resolve itself if I define a connection pool for HTTP, with a pool connection bean like this
#Configuration
#EnableGemFireHttpSession(poolName="devPool")
public class SessionConfig {
#Bean
public ReactiveSessionRepository<?> reactiveSessionRepository() {
return new ReactiveMapSessionRepository(new ConcurrentHashMap<>());
}
#Bean("devPool")
PoolFactoryBean sessionPool() {
PoolFactoryBean pool = new PoolFactoryBean();
ConnectionEndpoint ce = new ConnectionEndpoint("1.2.3.4", 10334);
pool.setSubscriptionEnabled(true);
pool.addLocators(ce);
return pool;
}
}
There is still the Expiration is not allowed on Regions with a data management policy of PROXY info message in the log, but this time the Falling back to creating Region [ClusteredSpringSessions] in Cache [Web] appears to work.
I don't understand why a default pool can't connect.
If a pool is defined then in version 1.2.4 that can cause this issue.
Since you are using Spring Boot for Apache Geode (SBDG), which is an excellent choice (thank you), then you can simply include the spring-geode-starter-session dependency on your #SpringBootApplication classpath, which removes the need to explicitly annotate your Spring Boot application with SSDG's #EnableGemFireHttpSession annotation.
See here for more details. I also have a Sample application demonstrating the use of SSDG, here. The guide and source code for this example, along with other examples, can be found here).
Also, I would generally advise that users drive the GemFire/Geode cluster configuration from the application and not let the cluster dictate the Regions (and/or other components/configuration) that the client gets. However, SDG's #EnableClusterDefinedRegions annotation is provided and generally useful in the case you do not have control over the GemFire/Geode cluster your application is using. Still, in the (HTTP) Session UC, the GemFire/Geode cluster would need a Session Region (which defaults to "ClusteredSpringSessions" as determined by Spring Session for Apache Geode (SSDG) itself) anyway.
OK, now to the problem at hand...
I think what is happening here is, due to backwards compatibility and legacy reasons, Spring Data for Apache Geode (SDG), on which both SSDG and SBDG are based; SBDG additionally pulls in SSDG as well, defined a GemFire/Geode Pool by the name of "gemfirePool", specifically when using the SDG XML space and using/defining a DataSource configuration.
So, it is somewhat naively assumed users would be explicitly defining a Pool and calling it "gemfirePool", and not simply relying on a "default" Pool connection to the GemFire/Geode cache server (namely "localhost", 40404, or if using Locators (recommended), "localhost" and 10334).
However, for development purposes, and in SBDG specifically, I rely on the fact that GemFire/Geode creates a "DEFAULT" Pool anyway (when no explicit Pool is defined), and forgo the strict requirement that a "gemfirePool" should exist. But, SBDG builds on SSDG and SDG and they still rely on the legacy arrangement (for example).
I have filed an Issue ticket in SSDG to change this and better align SSDG with what SBDG prefers going forward, but I simply have not gotten around to it yet. My apologies for your inconvenience.
Anyway, it is a simple change you can make externally from your Spring Boot application, in application.properties like so (see here from the HTTP Session Sample I referenced from SBDG above). This will allow you to configure the Session Region Pool "name".
Also note, it is possible to change the name of the Session Region used by the client if what comes down from the cluster when you are using SDG's #EnableClusterDefinedRegions and the Region definition pulled down from the cluster is named differently on the server-side using this property.
Additionally, you can also configure the client Session Region data policy using properties as well (for example).
Regarding the Expiration "info" message you are seeing in the logs...
Since the client Session Region is a PROXY by default, then Expiration, Eviction and other Region data management policies (e.g. Compression, etc), do not actually make much sense.
In fact, SSDG is smart about whether to apply additional Region data management policies locally or not (see here, and specifically, this logic).
The message you are seeing in your application logs is in fact coming from SSDG, specifically. This message really serves as a reminder that your Session state management is actually "managed" on the server-side (when the application client is using a PROXY or even a CACHING_PROXY Region for that matter) and that the corresponding server-side, or cluster Sessions Region should be configured manually and appropriately, with Expiration policies as well as other things if necessary. Otherwise, no Session expiration would actually happen!
I hope all this makes since.
If you continue to have problems, feel free to file an Issue ticket and provide an example test or small application replicating your problem.
The documentation says
The JDBC Client API created in Vert.x 3 is now deprecated and instead the new SQL Client API should be used. It will remain supported for the life time of Vert.x 4 to allow applications to be migrated to the new SQL Client API.
It seems that this class works in an Autocommit-Mode. If I have several database calls within one Service, how should this work with transaction-consistency? Is it planned, that the "commit", "rollback" will also be available as it is in SQLConnection?
Thx
You can take a look at Javadocs of the new client transaction APIs in https://vertx.io/docs/apidocs/io/vertx/sqlclient/Pool.html#withTransaction-java.util.function.Function-, the JDBCClient will execute the block starting with disabling auto-commit mode and ending with a commit or rollback execution.
Here goes - bear with me:
Two Autofac 4.2.1 Containers:
One in an Asp.NET 4.6.1 WebApi project
One in an NServiceBus 6 host
Both possess an IJobService reference to the JobService (which saves jobs to DynamoDB).
Run the project in Visual Studio...
If I make a WebApi request into the first JobService it succeeds and inserts a record to DynamoDB and drops a command on the bus for NServiceBus to pickup.
During the processing of the Saga, NServiceBus makes a call to JobService again (presumably on the second container) to save progress. This second call fails to insert to DynamoDB with the lifetime disposed. If I try to create anything from IComponentContext I get:
Instances cannot be resolved and nested lifetimes cannot be created from this LifetimeScope as it has already been disposed.
The NServiceBus host is running AsA_Server and I register the container in the Customize method of IConfigureThisEndPoint.
Any pointers on how to see where the lifetime is getting dumped or if it's mysteriously picking the wrong IJobService somehow?
Just to close this one out - we ended up redesigning the solution and moving any web service calls out to their own handlers. That was based off the advice found here http://docs.particular.net/nservicebus/sagas That change resolved the issue one way or another.
Specifically, this guidance:
Other than interacting with its own internal state, a saga should not access a database, call out to web services, or access other resources - neither directly nor indirectly by having such dependencies injected into it.
Trying to dynamically create and provide security metadata for artemis mq topics (as opposed to defining them statically in broker.xml).
For that purpose I've implemented (as described here) the SecuritySettingPlugin interface.
Now, the issue is the getSecurityRoles/populateSecurityRoles of the implementation are called only at server startup.
So, at some point in time after the mq server has been started, a topic will be created :
org.apache.activemq.artemis.api.jms.management.JMSServerControl.createTopic("newTopic")
Now I would like artemis to call again my SecuritySettingPlugin implementation to get the updated security roles (which will include configuration for the newly created newTopic).
Is that possible ?
P.S. security-invalidation-interval does not invalidate roles configuration cache.
Seems there is a way to customize an address security by API :
ActiveMQServerControl.addSecuritySettings()
I just tried to do a attempted a seamless upgrade of a service in a test setup. The service is being accessed by a Feign client. And naively I was under the impression that with multiple instances available of the service, the client would retry another instance if it failed to connect to one.
That, however, did not happen. But I cannot find any mention of how Feign in Spring Cloud is supposed to be configured to do this? Although I have seen mentions of it supporting it (as opposed to using RestTemplate where you would use something like Spring Retry?)
If you are using ribbon you can set properties similar to the following (substituting "localapp" for your serviceid):
localapp.ribbon.MaxAutoRetries=5
localapp.ribbon.MaxAutoRetriesNextServer=5
localapp.ribbon.OkToRetryOnAllOperations=true
ps underneath Feign has a Retryer interface, which was made to support things like Ribbon.
https://github.com/Netflix/feign/blob/master/core/src/main/java/feign/Retryer.java
see if property works - OkToRetryOnAllOperations: true
You can refer application ->
https://github.com/spencergibb/spring-cloud-sandbox/blob/master/spring-cloud-sandbox-sample-frontend/src/main/resources/application.yml
Spencer was quick...was late by few minutes :-)