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authorSebastien Premont-Tendland <sebastien.premont@bell.ca>2019-10-31 15:37:48 -0400
committerSebastien Premont-Tendland <sebastien.premont@bell.ca>2019-11-05 18:05:03 -0500
commit4d411a80405b9031a10fe53a4d021f4f246bbaa2 (patch)
tree97a1916b8a82c67a5e599253717a9c5fdb6bc9dd /ms/blueprintsprocessor/modules/inbounds/selfservice-api/src
parente967b59012d3aec0a5ad01d1ad508fc1e0a61a5f (diff)
Rolling upgrade support for in-flight requests
Three entry points are being handled : 1 - REST endpoint 2 - gRPC endpoint 3 - Kafka consumer We make use of Phaser object to make sure the PreDestroy callback wait for all requests to be executed before stopping the process. The docker image was also modified to make sure the java process becomes PID 1 in the container in order to catch the SIGTERM signal which triggers the PreDestroy callback of Spring. This was done by using the "exec" command in bash. Issue-ID: CCSDK-1885 Signed-off-by: Sebastien Premont-Tendland <sebastien.premont@bell.ca> Change-Id: I3e2a72e26a4c8b7768ebc374ea40aa8d55fb6761
Diffstat (limited to 'ms/blueprintsprocessor/modules/inbounds/selfservice-api/src')
-rw-r--r--ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt16
-rw-r--r--ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingKafkaConsumer.kt8
-rw-r--r--ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceController.kt16
3 files changed, 39 insertions, 1 deletions
diff --git a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt
index eb450d73b..636a55423 100644
--- a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt
+++ b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingGRPCHandler.kt
@@ -27,6 +27,8 @@ import org.onap.ccsdk.cds.controllerblueprints.processing.api.ExecutionServiceOu
import org.slf4j.LoggerFactory
import org.springframework.security.access.prepost.PreAuthorize
import org.springframework.stereotype.Service
+import java.util.concurrent.Phaser
+import javax.annotation.PreDestroy
@Service
open class BluePrintProcessingGRPCHandler(private val bluePrintCoreConfiguration: BluePrintCoreConfiguration,
@@ -34,6 +36,8 @@ open class BluePrintProcessingGRPCHandler(private val bluePrintCoreConfiguration
: BluePrintProcessingServiceGrpc.BluePrintProcessingServiceImplBase() {
private val log = LoggerFactory.getLogger(BluePrintProcessingGRPCHandler::class.java)
+ private val ph = Phaser(1)
+
@PreAuthorize("hasRole('USER')")
override fun process(
responseObserver: StreamObserver<ExecutionServiceOutput>): StreamObserver<ExecutionServiceInput> {
@@ -41,12 +45,16 @@ open class BluePrintProcessingGRPCHandler(private val bluePrintCoreConfiguration
return object : StreamObserver<ExecutionServiceInput> {
override fun onNext(executionServiceInput: ExecutionServiceInput) {
try {
+ ph.register()
runBlocking {
executionServiceHandler.process(executionServiceInput.toJava(), responseObserver)
}
} catch (e: Exception) {
onError(e)
}
+ finally {
+ ph.arriveAndDeregister()
+ }
}
override fun onError(error: Throwable) {
@@ -61,4 +69,12 @@ open class BluePrintProcessingGRPCHandler(private val bluePrintCoreConfiguration
}
}
}
+
+ @PreDestroy
+ fun preDestroy() {
+ val name = "BluePrintProcessingGRPCHandler"
+ log.info("Starting to shutdown $name waiting for in-flight requests to finish ...")
+ ph.arriveAndAwaitAdvance()
+ log.info("Done waiting in $name")
+ }
} \ No newline at end of file
diff --git a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingKafkaConsumer.kt b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingKafkaConsumer.kt
index b339903c5..a9dda7e0c 100644
--- a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingKafkaConsumer.kt
+++ b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/BluePrintProcessingKafkaConsumer.kt
@@ -29,6 +29,7 @@ import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty
import org.springframework.boot.context.event.ApplicationReadyEvent
import org.springframework.context.event.EventListener
import org.springframework.stereotype.Service
+import java.util.concurrent.Phaser
import javax.annotation.PreDestroy
@ConditionalOnProperty(name = ["blueprintsprocessor.messageconsumer.self-service-api.kafkaEnable"],
@@ -40,6 +41,8 @@ open class BluePrintProcessingKafkaConsumer(
val log = logger(BluePrintProcessingKafkaConsumer::class)
+ private val ph = Phaser(1)
+
private lateinit var blueprintMessageConsumerService: BlueprintMessageConsumerService
companion object {
@@ -76,6 +79,7 @@ open class BluePrintProcessingKafkaConsumer(
channel.consumeEach { message ->
launch {
try {
+ ph.register()
log.trace("Consumed Message : $message")
val executionServiceInput = message.jsonAsType<ExecutionServiceInput>()
val executionServiceOutput = executionServiceHandler.doProcess(executionServiceInput)
@@ -85,6 +89,9 @@ open class BluePrintProcessingKafkaConsumer(
} catch (e: Exception) {
log.error("failed in processing the consumed message : $message", e)
}
+ finally {
+ ph.arriveAndDeregister()
+ }
}
}
}
@@ -100,6 +107,7 @@ open class BluePrintProcessingKafkaConsumer(
log.info("Shutting down message consumer($CONSUMER_SELECTOR) and " +
"message producer($PRODUCER_SELECTOR)...")
blueprintMessageConsumerService.shutDown()
+ ph.arriveAndAwaitAdvance()
} catch (e: Exception) {
log.error("failed to shutdown message listener($CONSUMER_SELECTOR)", e)
}
diff --git a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceController.kt b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceController.kt
index b246b33e1..130e23ecc 100644
--- a/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceController.kt
+++ b/ms/blueprintsprocessor/modules/inbounds/selfservice-api/src/main/kotlin/org/onap/ccsdk/cds/blueprintsprocessor/selfservice/api/ExecutionServiceController.kt
@@ -34,6 +34,8 @@ import org.springframework.http.ResponseEntity
import org.springframework.security.access.prepost.PreAuthorize
import org.springframework.web.bind.annotation.*
import reactor.core.publisher.Mono
+import java.util.concurrent.Phaser
+import javax.annotation.PreDestroy
@RestController
@RequestMapping("/api/v1/execution-service")
@@ -42,6 +44,8 @@ import reactor.core.publisher.Mono
open class ExecutionServiceController {
val log = logger(ExecutionServiceController::class)
+ private val ph = Phaser(1)
+
@Autowired
lateinit var executionServiceHandler: ExecutionServiceHandler
@@ -51,7 +55,6 @@ open class ExecutionServiceController {
@ResponseBody
@ApiOperation(value = "Health Check", hidden = true)
fun executionServiceControllerHealthCheck() = monoMdc(Dispatchers.IO) {
- log.info("Health check success...")
"Success".asJsonPrimitive()
}
@@ -69,8 +72,19 @@ open class ExecutionServiceController {
if (executionServiceInput.actionIdentifiers.mode == ACTION_MODE_ASYNC) {
throw IllegalStateException("Can't process async request through the REST endpoint. Use gRPC for async processing.")
}
+
+ ph.register()
val processResult = executionServiceHandler.doProcess(executionServiceInput)
+ ph.arriveAndDeregister()
ResponseEntity(processResult, determineHttpStatusCode(processResult.status.code))
}
+
+ @PreDestroy
+ fun preDestroy() {
+ val name = "ExecutionServiceController"
+ log.info("Starting to shutdown $name waiting for in-flight requests to finish ...")
+ ph.arriveAndAwaitAdvance()
+ log.info("Done waiting in $name")
+ }
}