Signed-off-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com> --- .../qemu-iotests/tests/nbd-reconnect-on-open | 71 +++++++++++++++++++ .../tests/nbd-reconnect-on-open.out | 11 +++ 2 files changed, 82 insertions(+) create mode 100755 tests/qemu-iotests/tests/nbd-reconnect-on-open create mode 100644 tests/qemu-iotests/tests/nbd-reconnect-on-open.out
diff --git a/tests/qemu-iotests/tests/nbd-reconnect-on-open b/tests/qemu-iotests/tests/nbd-reconnect-on-open new file mode 100755 index 0000000000..8be721a24f --- /dev/null +++ b/tests/qemu-iotests/tests/nbd-reconnect-on-open @@ -0,0 +1,71 @@ +#!/usr/bin/env python3 +# +# Test nbd reconnect on open +# +# Copyright (c) 2020 Virtuozzo International GmbH +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. +# + +import time + +import iotests +from iotests import qemu_img_create, file_path, qemu_io_popen, qemu_nbd, \ + qemu_io_log, log + +iotests.script_initialize(supported_fmts=['qcow2']) + +disk, nbd_sock = file_path('disk', 'nbd-sock') + + +def create_args(open_timeout): + return ['--image-opts', '-c', 'read 0 1M', + f'driver=nbd,open-timeout={open_timeout},' + f'server.type=unix,server.path={nbd_sock}'] + + +def check_fail_to_connect(open_timeout): + log(f'Check fail to connect with {open_timeout} seconds of timeout') + + start_t = time.time() + qemu_io_log(*create_args(open_timeout)) + delta_t = time.time() - start_t + + max_delta = open_timeout + 0.2 + if open_timeout <= delta_t <= max_delta: + log(f'qemu_io finished in {open_timeout}..{max_delta} seconds, OK') + else: + note = 'too early' if delta_t < open_timeout else 'too long' + log(f'qemu_io finished in {delta_t:.1f} seconds, {note}') + + +qemu_img_create('-f', iotests.imgfmt, disk, '1M') + +# Start NBD client when NBD server is not yet running. It should not fail, but +# wait for 5 seconds for the server to be available. +client = qemu_io_popen(*create_args(5)) + +time.sleep(1) +qemu_nbd('-k', nbd_sock, '-f', iotests.imgfmt, disk) + +# client should succeed +log(client.communicate()[0], filters=[iotests.filter_qemu_io]) + +# Server was started without --persistent flag, so it should be off now. Let's +# check it and at the same time check that with open-timeout=0 client fails +# immediately. +check_fail_to_connect(0) + +# Check that we will fail after non-zero timeout if server is still unavailable +check_fail_to_connect(1) diff --git a/tests/qemu-iotests/tests/nbd-reconnect-on-open.out b/tests/qemu-iotests/tests/nbd-reconnect-on-open.out new file mode 100644 index 0000000000..a35ae30ea4 --- /dev/null +++ b/tests/qemu-iotests/tests/nbd-reconnect-on-open.out @@ -0,0 +1,11 @@ +read 1048576/1048576 bytes at offset 0 +1 MiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) + +Check fail to connect with 0 seconds of timeout +qemu-io: can't open: Failed to connect to 'TEST_DIR/PID-nbd-sock': No such file or directory + +qemu_io finished in 0..0.2 seconds, OK +Check fail to connect with 1 seconds of timeout +qemu-io: can't open: Failed to connect to 'TEST_DIR/PID-nbd-sock': No such file or directory + +qemu_io finished in 1..1.2 seconds, OK -- 2.31.1
