3 # Copyright (C) 2018-2019 Red Hat Inc.
5 # Redistribution and use in source and binary forms, with or without
6 # modification, are permitted provided that the following conditions are
9 # * Redistributions of source code must retain the above copyright
10 # notice, this list of conditions and the following disclaimer.
12 # * Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # * Neither the name of Red Hat nor the names of its contributors may be
17 # used to endorse or promote products derived from this software without
18 # specific prior written permission.
20 # THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
21 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
23 # PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
24 # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
27 # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
28 # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 requires nbdsh
--base-allocation -c 'exit(not h.supports_uri())'
39 files
="retry-extents-count retry-extents-open-count"
41 cleanup_fn
rm -f $files
43 touch retry-extents-count retry-extents-open-count
46 # Create a custom plugin which will test retrying.
49 --filter=retry retry-delay
=1 \
50 --run 'nbdsh --base-allocation --uri $uri -c "
52 def f (metacontext, offset, e, err):
55 assert metacontext == nbd.CONTEXT_BASE_ALLOCATION
57 h.block_status (1024, 0, f)
58 assert entries == [ 512, 0,
64 # Count how many times the connection is (re-)opened.
65 read i < retry-extents-open-count
66 echo $((i+1)) > retry-extents-open-count
69 # Fail in three different ways then succeed.
70 read i < retry-extents-count
72 echo $i > retry-extents-count
74 1) echo "EIO pread failed" >&2; exit 1;;
86 can_extents) exit 0 ;;
87 get_size) echo 1024 ;;
92 # In this test we should see 3 failures:
94 # retry and wait 1 seconds
96 # retry and wait 2 seconds
98 # retry and wait 4 seconds
101 # The minimum time for the test should be 1+2+4 = 7 seconds.
103 if [ $
((end_t
- start_t
)) -lt 7 ]; then
104 echo "$0: test ran too quickly"
108 # Check the handle was opened 4 times (first open + one reopen for
110 read open_count
< retry-extents-open-count
111 if [ $open_count -ne 4 ]; then
112 echo "$0: open-count ($open_count) != 4"