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Btrace script for reproducing eureka instance registering starting status
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import com.sun.btrace.annotations.BTrace; | |
import com.sun.btrace.annotations.Kind; | |
import com.sun.btrace.annotations.Location; | |
import com.sun.btrace.annotations.OnMethod; | |
import java.util.concurrent.atomic.AtomicBoolean; | |
import static com.sun.btrace.BTraceUtils.currentThread; | |
import static com.sun.btrace.BTraceUtils.println; | |
/** | |
* @author Addo.Zhang | |
* @date 2019-07-31 | |
*/ | |
@BTrace(unsafe = true) | |
public class EurekaRequest { | |
public static final AtomicBoolean heartbeatThreadRegistrationStarted = new AtomicBoolean(false); | |
public static final AtomicBoolean replicatorThreadRegistrationCompleted = new AtomicBoolean(false); | |
public static final AtomicBoolean statusUP = new AtomicBoolean(false); | |
@OnMethod(clazz = "org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry", location = @Location(value = Kind.LINE, line = 45)) | |
public static void waitHeartbeatExecution() { | |
println(currentThread() + " is waiting heartbeatThreadRegistrationStarted thread executing first"); | |
while (!heartbeatThreadRegistrationStarted.get()) ; | |
} | |
@OnMethod(clazz = "org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry", location = @Location(value = Kind.LINE, line = 46)) | |
public static void markStatusUp() { | |
statusUP.set(true); | |
println("Heartbeat thread executed and " + currentThread() + " continues procedure to change status to [UP]"); | |
} | |
@OnMethod(clazz = "com.netflix.discovery.converters.EurekaJacksonCodec$InstanceInfoSerializer", location = @Location(value = Kind.LINE, line = 369)) | |
public static void continueRegistrationExecution() { | |
doExecution(); | |
} | |
private static void doExecution() { | |
println(currentThread() + " started to proceed registration"); | |
if (Thread.currentThread().getName().contains("HeartbeatExecutor")) { | |
heartbeatThreadRegistrationStarted.set(true); | |
while (!statusUP.get() || !replicatorThreadRegistrationCompleted.get()) { | |
} | |
try { | |
Thread.sleep(500); //interval for replicator registration request completed. | |
} catch (InterruptedException e) { | |
Thread.currentThread().interrupt(); | |
} | |
} else if (Thread.currentThread().getName().contains("InstanceInfoReplicator")) { | |
replicatorThreadRegistrationCompleted.set(true); | |
} | |
println(currentThread() + " thread registration completed"); | |
} | |
} |
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