Andrei Budnik created MESOS-8247:
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Summary: Executor registered message is lost
Key: MESOS-8247
URL: https://issues.apache.org/jira/browse/MESOS-8247
Project: Mesos
Issue Type: Bug
Reporter: Andrei Budnik
h3. Brief description of successful agent-executor communication.
Executor sends `RegisterExecutorMessage` message to Agent during initialization
step. Agent sends a `ExecutorRegisteredMessage` message as a response to the
Executor in `registerExecutor()` method. Whenever executor receives
`ExecutorRegisteredMessage`, it prints a `Executor registered on agent...` to
stderr logs.
h3. Problem description.
The agent launches built-in docker executor, which is stuck in `STAGING` state.
stderr logs of the docker executor:
{code}
I1114 23:03:17.919090 14322 exec.cpp:162] Version: 1.2.3
{code}
It doesn't contain a message like `Executor registered on agent...`. At the
same time agent received `RegisterExecutorMessage` and sent `runTask` message
to the executor.
stdout logs consists of the same repeating message:
{code}
Received killTask for task ...
{code}
Also, the docker executor process doesn't contain child processes.
Currently, executor [doesn't
attempt|https://github.com/apache/mesos/blob/2a253093ecdc7d743c9c0874d6e01b68f6a813e4/src/exec/exec.cpp#L320]
to launch a task if it is not registered at the agent, while [task
killing|https://github.com/apache/mesos/blob/2a253093ecdc7d743c9c0874d6e01b68f6a813e4/src/exec/exec.cpp#L343]
doesn't have such a check.
It looks like `ExecutorRegisteredMessage` has been lost.
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