ec77662e60
If you run './check 277', check includes common.config which adjusts $PATH to include '.' first, and therefore finds nbd-fault-injector.py on PATH. But if you run './277' directly, there is nothing to adjust PATH, and if '.' is not already on your PATH by other means, the test fails because the executable is not found. Adjust how we invoke the helper executable to avoid needing a PATH search in the first place. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20210116134424.82867-2-vsementsov@virtuozzo.com> Signed-off-by: Eric Blake <eblake@redhat.com>
99 lines
3 KiB
Python
Executable file
99 lines
3 KiB
Python
Executable file
#!/usr/bin/env python3
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#
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# Test NBD client reconnection
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#
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# Copyright (c) 2019 Virtuozzo International GmbH
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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import os
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import subprocess
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import iotests
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from iotests import file_path, log
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iotests.script_initialize()
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nbd_sock, conf_file = file_path('nbd-sock', 'nbd-fault-injector.conf')
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def make_conf_file(event):
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"""
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Create configuration file for the nbd-fault-injector.py
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:param event: which event the server should close a connection on
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"""
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with open(conf_file, 'w') as conff:
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conff.write('[inject-error]\nevent={}\nwhen=after'.format(event))
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def start_server_NBD(event):
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make_conf_file(event)
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srv = subprocess.Popen(['./nbd-fault-injector.py', '--classic-negotiation',
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nbd_sock, conf_file], stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT, universal_newlines=True)
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line = srv.stdout.readline()
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if 'Listening on ' in line:
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log('NBD server: started')
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else:
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log('NBD server: ' + line.rstrip())
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return srv
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def start_client_NBD():
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log('NBD client: QEMU-IO write')
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args = iotests.qemu_io_args_no_fmt + \
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['-c', 'write -P 0x7 0 3M', '--image-opts',
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'driver=nbd,server.type=unix,server.path={},'
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'reconnect-delay=7'.format(nbd_sock)]
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clt = subprocess.Popen(args, stdout=subprocess.PIPE,
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stderr=subprocess.STDOUT,
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universal_newlines=True)
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return clt
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def check_proc_NBD(proc, connector):
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try:
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outs, errs = proc.communicate(timeout=10)
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if proc.returncode < 0:
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log('NBD {}: EXIT SIGNAL {}\n'.format(connector, proc.returncode))
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log(outs)
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else:
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msg = outs.split('\n', 1)
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log('NBD {}: {}'.format(connector, msg[0]))
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except subprocess.TimeoutExpired:
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proc.kill()
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log('NBD {}: ERROR timeout expired'.format(connector))
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finally:
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if connector == 'server':
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os.remove(nbd_sock)
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os.remove(conf_file)
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srv = start_server_NBD('data')
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clt = start_client_NBD()
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# The server should close the connection after a client write request
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check_proc_NBD(srv, 'server')
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# Start the NBD server again
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srv = start_server_NBD('reply')
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# The client should reconnect and complete the write operation
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check_proc_NBD(clt, 'client')
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# Make it sure that server terminated
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check_proc_NBD(srv, 'server')
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