Block issue

[wheestermans31]

One of our teams use the logback with datadog

<?xml version="1.0" encoding="UTF-8"?>
<configuration>

    <include resource="org/springframework/boot/logging/logback/defaults.xml" />
        <property name="LOG_PATH" value="./logs/userprofile/"/>
    <include resource="org/springframework/boot/logging/logback/file-appender.xml" />

    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <encoder>
            <pattern>%d{dd-MM-yyyy HH:mm:ss.SSS} [%thread] %-5level %logger{0}.%M - %msg%n</pattern>
        </encoder>
    </appender>
    <appender name="STDOUT_PROD" class="ch.qos.logback.core.ConsoleAppender">
        <encoder class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
            <layout class="com.toyota.tme.logging.util.logback.MaskingLayout">
                <Pattern>
                    %-90(%d{yyyy-MM-dd HH:mm:ss} [%thread] %highlight(%-5level) %-10.30logger{36}) - %m%n %ex{2}
                </Pattern>
            </layout>
        </encoder>
    </appender>
    <appender name="SAVE-TO-FILE" class="ch.qos.logback.core.rolling.RollingFileAppender">
        <file>${LOG_PATH}log.log</file>
        <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
            <Pattern>%d{dd-MM-yyyy HH:mm:ss.SSS} [%thread] %-5level %logger{150}.%M - %msg%n</Pattern>
        </encoder>
        <rollingPolicy class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
            <fileNamePattern>${LOG_PATH}archived/log_%d{dd-MM-yyyy}.%i.log</fileNamePattern>
            <maxHistory>30</maxHistory>
            <maxFileSize>10MB</maxFileSize>
        </rollingPolicy>
    </appender>
    <appender name="DATADOG" class="net.logstash.logback.appender.LogstashTcpSocketAppender">
        <remoteHost>${DATADOG_LOG_HOST}</remoteHost>
        <port>${DATADOG_PORT}</port>
        <keepAliveDuration>1 minute</keepAliveDuration>
        <encoder class="net.logstash.logback.encoder.LogstashEncoder">
            <customFields>{"service": "${DATADOG_SERVICE}","department": "${DATADOG_PROJECT}", "env": "${DATADOG_ENV}", "ddsource":"java"}
            </customFields>
            <prefix class="ch.qos.logback.core.encoder.LayoutWrappingEncoder">
                <layout class="ch.qos.logback.classic.PatternLayout">
                    <pattern>${DATADOG_API_KEY} %mdc{keyThatDoesNotExist}</pattern>
                </layout>
            </prefix>
        </encoder>
        <ssl/>
    </appender>

    <springProfile name="devpc-runLocalJetty">
        <root level="info">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="SAVE-TO-FILE" />
        </root>
    </springProfile>
    <springProfile name="dev">
        <root level="debug">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="SAVE-TO-FILE" />
            <appender-ref ref="DATADOG" />
        </root>
    </springProfile>
    <springProfile name="uat">
        <root level="debug">
            <appender-ref ref="STDOUT" />
            <appender-ref ref="SAVE-TO-FILE" />
            <appender-ref ref="DATADOG" />
        </root>
    </springProfile>
    <springProfile name="prod">
        <root level="info">
            <appender-ref ref="STDOUT_PROD" />
            <appender-ref ref="SAVE-TO-FILE" />
            <appender-ref ref="DATADOG" />
        </root>
    </springProfile>

</configuration>

But we see that our Java process is coming to some lock scenario.

There is one thread keeping a logger object locked where others are waiting for (467 other threads).

"grpc-default-executor-530" #590 daemon prio=5 os_prio=0 tid=0x00007f405250c000 nid=0x383 runnable [0x00007f403acbb000]
   java.lang.Thread.State: RUNNABLE
        at ch.qos.logback.core.util.CachingDateFormatter.format(CachingDateFormatter.java:48)
        - locked <0x00000000f8686448> (a ch.qos.logback.core.util.CachingDateFormatter)
        at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:61)
        at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:1)
        at ch.qos.logback.core.pattern.FormattingConverter.write(FormattingConverter.java:36)
        at ch.qos.logback.core.pattern.PatternLayoutBase.writeLoopOnConverters(PatternLayoutBase.java:117)
        at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:141)
        at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:1)
        at ch.qos.logback.core.encoder.LayoutWrappingEncoder.encode(LayoutWrappingEncoder.java:115)
        at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:230)
        at ch.qos.logback.core.rolling.RollingFileAppender.subAppend(RollingFileAppender.java:235)
        at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:102)
        at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84)
        at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
        at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
        at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
        at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
        at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
        at ch.qos.logback.classic.Logger.info(Logger.java:579)
        at com.toyota.tme.cms.mm21.userprofile.logger.UserProfileServiceLogger.info(UserProfileServiceLogger.java:15)
        at com.toyota.tme.cms.mm21.userprofile.aspect.LoggingAspect.executionTime(LoggingAspect.java:39)
        at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
        at com.toyota.tme.cms.mm21.userprofile.dao.UserProfileServiceDAOImpl$$EnhancerBySpringCGLIB$$a0922ccc.getProfileNames(<generated>)
        at com.toyota.tme.cms.mm21.userprofile.service.UserRegistrationService.getRegistrationStatus(UserRegistrationService.java:143)
        at com.toyota.tme.cms.mm21.userprofile.service.UserRegistrationService$$FastClassBySpringCGLIB$$5c5407c3.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:56)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
        at com.toyota.tme.cms.mm21.userprofile.aspect.LoggingAspect.executionTime(LoggingAspect.java:37)
        at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
        at com.toyota.tme.cms.mm21.userprofile.service.UserRegistrationService$$EnhancerBySpringCGLIB$$4f1a27a4.getRegistrationStatus(<generated>)
        at com.toyota.tme.cms.mm21.userprofile.service.VehicleUserRegistrationServiceImpl.getRegistrationStatus(VehicleUserRegistrationServiceImpl.java:149)
        at com.toyota.tme.cms.mm21.userprofile.service.VehicleUserRegistrationServiceImpl$$FastClassBySpringCGLIB$$d00a6fd3.invoke(<generated>)
        at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:769)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:56)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
        at com.toyota.tme.cms.mm21.userprofile.aspect.LoggingAspect.executionTime(LoggingAspect.java:37)
        at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
        at com.toyota.tme.cms.mm21.userprofile.service.VehicleUserRegistrationServiceImpl$$EnhancerBySpringCGLIB$$706ac787.getRegistrationStatus(<generated>)
        at com.toyota.ctp.v1.connected_car_platform.pb.vehicle_registration_service.VehicleRegistrationServiceGrpc$MethodHandlers.invoke(VehicleRegistrationServiceGrpc.java:1102)
        at io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:172)
        at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
        at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
        at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
        at io.grpc.Contexts$ContextualizedServerCallListener.onHalfClose(Contexts.java:86)
        at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
        at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
        at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
        at io.grpc.Contexts$ContextualizedServerCallListener.onHalfClose(Contexts.java:86)
        at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
        at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
        at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
        at com.toyota.tme.cms.mm21.userprofile.interceptor.GRPCServiceBOLAInterceptor$1.onHalfClose(GRPCServiceBOLAInterceptor.java:154)
        at io.grpc.PartialForwardingServerCallListener.onHalfClose(PartialForwardingServerCallListener.java:35)
        at io.grpc.ForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:23)
        at io.grpc.ForwardingServerCallListener$SimpleForwardingServerCallListener.onHalfClose(ForwardingServerCallListener.java:40)
        at com.toyota.tme.cms.mm21.userprofile.interceptor.GRPCServiceInterceptor$1.onHalfClose(GRPCServiceInterceptor.java:57)
        at datadog.trace.instrumentation.grpc.server.TracingServerInterceptor$TracingServerCallListener.onHalfClose(TracingServerInterceptor.java:112)
        at io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:331)
        at io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:808)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at datadog.trace.bootstrap.instrumentation.java.concurrent.Wrapper.run(Wrapper.java:25)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)

There    are 467 other grpc related threads inside a block state due to this locked object:

"grpc-default-executor-529" #589 daemon prio=5 os_prio=0 tid=0x00007f4052507000 nid=0x382 waiting for monitor entry [0x00007f403afbf000]
   java.lang.Thread.State: BLOCKED (on object monitor)
        at ch.qos.logback.core.util.CachingDateFormatter.format(CachingDateFormatter.java:45)
        - waiting to lock <0x00000000f8686448> (a ch.qos.logback.core.util.CachingDateFormatter)
        at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:61)
        at ch.qos.logback.classic.pattern.DateConverter.convert(DateConverter.java:1)
        at ch.qos.logback.core.pattern.FormattingConverter.write(FormattingConverter.java:36)
        at ch.qos.logback.core.pattern.PatternLayoutBase.writeLoopOnConverters(PatternLayoutBase.java:117)
        at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:141)
        at ch.qos.logback.classic.PatternLayout.doLayout(PatternLayout.java:1)
        at ch.qos.logback.core.encoder.LayoutWrappingEncoder.encode(LayoutWrappingEncoder.java:115)
        at ch.qos.logback.core.OutputStreamAppender.subAppend(OutputStreamAppender.java:230)
        at ch.qos.logback.core.rolling.RollingFileAppender.subAppend(RollingFileAppender.java:235)
        at ch.qos.logback.core.OutputStreamAppender.append(OutputStreamAppender.java:102)
        at ch.qos.logback.core.UnsynchronizedAppenderBase.doAppend(UnsynchronizedAppenderBase.java:84)
        at ch.qos.logback.core.spi.AppenderAttachableImpl.appendLoopOnAppenders(AppenderAttachableImpl.java:51)
        at ch.qos.logback.classic.Logger.appendLoopOnAppenders(Logger.java:270)
        at ch.qos.logback.classic.Logger.callAppenders(Logger.java:257)
        at ch.qos.logback.classic.Logger.buildLoggingEventAndAppend(Logger.java:421)
        at ch.qos.logback.classic.Logger.filterAndLog_0_Or3Plus(Logger.java:383)
        at ch.qos.logback.classic.Logger.info(Logger.java:579)
        at com.toyota.tme.cms.mm21.userprofile.logger.UserProfileServiceLogger.info(UserProfileServiceLogger.java:15)
        at com.toyota.tme.cms.mm21.userprofile.aspect.LoggingAspect.logControllerEntry(LoggingAspect.java:21)
        at sun.reflect.GeneratedMethodAccessor140.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:626)
        at org.springframework.aop.aspectj.AspectJMethodBeforeAdvice.before(AspectJMethodBeforeAdvice.java:44)
        at org.springframework.aop.framework.adapter.MethodBeforeAdviceInterceptor.invoke(MethodBeforeAdviceInterceptor.java:55)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.MethodInvocationProceedingJoinPoint.proceed(MethodInvocationProceedingJoinPoint.java:88)
        at com.toyota.tme.cms.mm21.userprofile.aspect.LoggingAspect.executionTime(LoggingAspect.java:37)
        at sun.reflect.GeneratedMethodAccessor138.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644)
        at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:633)
        at org.springframework.aop.aspectj.AspectJAroundAdvice.invoke(AspectJAroundAdvice.java:70)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:62)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
        at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747)
        at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689)
        at com.toyota.tme.cms.mm21.userprofile.interceptor.GRPCServiceInterceptor$$EnhancerBySpringCGLIB$$bf130e12.interceptCall(<generated>)
        at io.grpc.ServerInterceptors$InterceptCallHandler.startCall(ServerInterceptors.java:229)
        at datadog.trace.instrumentation.grpc.server.TracingServerInterceptor.interceptCall(TracingServerInterceptor.java:45)
        at io.grpc.ServerInterceptors$InterceptCallHandler.startCall(ServerInterceptors.java:229)
        at io.grpc.internal.ServerImpl$ServerTransportListenerImpl.startWrappedCall(ServerImpl.java:639)
        at io.grpc.internal.ServerImpl$ServerTransportListenerImpl.startCall(ServerImpl.java:617)
        at io.grpc.internal.ServerImpl$ServerTransportListenerImpl.access$1900(ServerImpl.java:413)
        at io.grpc.internal.ServerImpl$ServerTransportListenerImpl$1StreamCreated.runInternal(ServerImpl.java:553)
        at io.grpc.internal.ServerImpl$ServerTransportListenerImpl$1StreamCreated.runInContext(ServerImpl.java:527)
        at io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
        at io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
        at datadog.trace.bootstrap.instrumentation.java.concurrent.Wrapper.run(Wrapper.java:25)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:750)

Is this a know issue?

[guchengyuxiang]

The 1.3.x series requires Java 8 at runtime