CI Failure (key symptom) in OMBValidationTest.test_common_workload

[vbotbuildovich]

https://buildkite.com/redpanda/vtools/builds/13658

Module: rptest.redpanda_cloud_tests.omb_validation_test
Class: OMBValidationTest
Method: test_common_workload

test_id:    OMBValidationTest.test_common_workload
status:     FAIL
run time:   841.310 seconds

RemoteCommandError({'ssh_config': {'host': 'ducktape-node-6-hugely-cool-ant', 'hostname': '10.138.0.74', 'user': 'root', 'port': 22, 'password': None, 'identityfile': '/home/ubuntu/.ssh/id_rsa'}, 'hostname': 'ducktape-node-6-hugely-cool-ant', 'ssh_hostname': '10.138.0.74', 'user': 'root', 'externally_routable_ip': '35.203.135.201', '_logger': <Logger rptest.redpanda_cloud_tests.omb_validation_test.OMBValidationTest.test_common_workload-2 (DEBUG)>, 'os': 'linux', '_ssh_client': <paramiko.client.SSHClient object at 0x7a2afea9a530>, '_sftp_client': <paramiko.sftp_client.SFTPClient object at 0x7a2afea98100>, '_custom_ssh_exception_checks': None}, 'kill -15 3909\n', 1, b'bash: line 1: kill: (3909) - No such process\n')
Traceback (most recent call last):
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 184, in _do_run
    data = self.run_test()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/tests/runner_client.py", line 276, in run_test
    return self.test_context.function(self.test)
  File "/home/ubuntu/redpanda/tests/rptest/services/cluster.py", line 103, in wrapped
    r = f(self, *args, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/redpanda_cloud_tests/omb_validation_test.py", line 512, in test_common_workload
    self.run_benchmark_with_retries(benchmark, max_retries)
  File "/home/ubuntu/redpanda/tests/rptest/redpanda_cloud_tests/omb_validation_test.py", line 93, in run_benchmark_with_retries
    self.handle_failed_attempt(try_count, max_retries, benchmark,
  File "/home/ubuntu/redpanda/tests/rptest/redpanda_cloud_tests/omb_validation_test.py", line 116, in handle_failed_attempt
    benchmark.clean()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/services/service.py", line 326, in clean
    self.clean_node(node, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/services/openmessaging_benchmark.py", line 524, in clean_node
    self.stop_node(node, allow_fail=True)
  File "/home/ubuntu/redpanda/tests/rptest/services/openmessaging_benchmark.py", line 513, in stop_node
    self.workers.stop()
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/services/service.py", line 310, in stop
    self.stop_node(node, **kwargs)
  File "/home/ubuntu/redpanda/tests/rptest/services/openmessaging_benchmark.py", line 129, in stop_node
    node.account.kill_process("openmessaging-benchmark",
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 430, in kill_process
    self.signal(pid, sig, allow_fail=allow_fail)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 418, in signal
    self.ssh(cmd, allow_fail=allow_fail)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 41, in wrapper
    return method(self, *args, **kwargs)
  File "/opt/.ducktape-venv/lib/python3.10/site-packages/ducktape/cluster/remoteaccount.py", line 300, in ssh
    raise RemoteCommandError(self, cmd, exit_status, stderr.read())
ducktape.cluster.remoteaccount.RemoteCommandError: root@ducktape-node-6-hugely-cool-ant: Command 'kill -15 3909
' returned non-zero exit status 1. Remote error message: b'bash: line 1: kill: (3909) - No such process\n'

JIRA Link: CORE-2927