gaoweijie opened a new issue #5704:
URL: https://github.com/apache/skywalking/issues/5704
Please answer these questions before submitting your issue.
- Why do you submit this issue?
- [√] Question or discussion
- [ ] Bug
- [ ] Requirement
- [ ] Feature or performance improvement
___
### Question
- What do you want to know?
Does skywalking support hot deployment? My understanding is that it
should be supported, because JDK guarantees the ability of agentmain.
When I use the cold start（premian）, I can get the link data normally
When I try to deploy using the hot deployment method（agentmain）, I can
only get the information at the JVM level, but not other information (such as
link or trace information)
below is java code's core main method in my agent.jar:
public static void main(String[] args) {
try {
List<VirtualMachineDescriptor> vmList = VirtualMachine.list();
for (VirtualMachineDescriptor virtualMachineDescriptor : vmList)
{
System.out.println("pid=" + virtualMachineDescriptor.id() +
"\t" + virtualMachineDescriptor.displayName());
if
(virtualMachineDescriptor.displayName().toLowerCase().contains("UserApplication".toLowerCase())
||
virtualMachineDescriptor.displayName().toLowerCase().contains("LoginApplication".toLowerCase()))
{
String pid = virtualMachineDescriptor.id();
VirtualMachine virtualMachine =
VirtualMachine.attach(pid);
virtualMachine.loadAgent(
"/Users/gaoweijie/Documents/project/skywalkingDemo/testProject/skywalking/skywalking-agent/skywalking-agent.jar=agent.service_name="
+ virtualMachineDescriptor.displayName()
+ ",collector.backend_service=localhost:11800" );
}
}
} catch (Exception e) {
e.printStackTrace();
}
___
###
- Which version of SkyWalking, OS and JRE?
JDK1.8 、 MAC-OS 、the latest version apach Skywalking.
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