From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
To: qemu-devel@nongnu.org, qemu-block@nongnu.org
Cc: kwolf@redhat.com, vsementsov@virtuozzo.com, armbru@redhat.com,
mreitz@redhat.com, stefanha@redhat.com, den@openvz.org
Subject: [Qemu-devel] [PATCH v7 0/9] NBD reconnect
Date: Tue, 18 Jun 2019 14:43:19 +0300 [thread overview]
Message-ID: <20190618114328.55249-1-vsementsov@virtuozzo.com> (raw)
Hi all!
Here is NBD reconnect. Previously, if connection failed all current
and future requests will fail. After the series, nbd-client driver
will try to reconnect unlimited times. During first @reconnect-delay
seconds of reconnecting all requests will wait for the connection,
and if it is established requests will be resent. After
@reconnect-delay period all requests will be failed (until successful
reconnect).
v7:
almost all: rebased on merged nbd.c and nbd-client.c (including patch subject)
01-04: add Eric's r-b
04: wording
05: new
06: rewrite to remove timer earlier
07: new
08:
- rebase on 05 and 07
- drop "All rights reserved"
- handle drain
- improve handling aio context attach
09: move 249 -> 257
Vladimir Sementsov-Ogievskiy (9):
block/nbd: split connection_co start out of nbd_client_connect
block/nbd: use non-blocking io channel for nbd negotiation
block/nbd: move from quit to state
block/nbd: add cmdline and qapi parameter reconnect-delay
block/nbd: refactor nbd connection parameters
qemu-coroutine-sleep: introduce qemu_co_sleep_wake
qemu/units: add SI decimal units
block/nbd: nbd reconnect
iotests: test nbd reconnect
qapi/block-core.json | 11 +-
include/block/nbd.h | 3 +-
include/qemu/coroutine.h | 17 +-
include/qemu/units.h | 7 +
block/nbd.c | 531 +++++++++++++++++++++++++---------
block/null.c | 2 +-
block/sheepdog.c | 2 +-
nbd/client.c | 16 +-
qemu-nbd.c | 2 +-
tests/test-bdrv-drain.c | 6 +-
tests/test-block-iothread.c | 2 +-
util/qemu-coroutine-sleep.c | 47 ++-
tests/qemu-iotests/257 | 63 ++++
tests/qemu-iotests/257.out | 10 +
tests/qemu-iotests/group | 1 +
tests/qemu-iotests/iotests.py | 4 +
16 files changed, 551 insertions(+), 173 deletions(-)
create mode 100755 tests/qemu-iotests/257
create mode 100644 tests/qemu-iotests/257.out
--
2.18.0
next reply other threads:[~2019-06-18 11:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 11:43 Vladimir Sementsov-Ogievskiy [this message]
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 1/9] block/nbd: split connection_co start out of nbd_client_connect Vladimir Sementsov-Ogievskiy
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 2/9] block/nbd: use non-blocking io channel for nbd negotiation Vladimir Sementsov-Ogievskiy
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 3/9] block/nbd: move from quit to state Vladimir Sementsov-Ogievskiy
2019-08-08 2:01 ` Eric Blake
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 4/9] block/nbd: add cmdline and qapi parameter reconnect-delay Vladimir Sementsov-Ogievskiy
2019-08-08 2:03 ` Eric Blake
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 5/9] block/nbd: refactor nbd connection parameters Vladimir Sementsov-Ogievskiy
2019-08-09 15:12 ` Eric Blake
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 6/9] qemu-coroutine-sleep: introduce qemu_co_sleep_wake Vladimir Sementsov-Ogievskiy
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 7/9] qemu/units: add SI decimal units Vladimir Sementsov-Ogievskiy
2019-08-09 15:39 ` Eric Blake
2019-08-09 15:56 ` Peter Maydell
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 8/9] block/nbd: nbd reconnect Vladimir Sementsov-Ogievskiy
2019-06-18 11:43 ` [Qemu-devel] [PATCH v7 9/9] iotests: test " Vladimir Sementsov-Ogievskiy
2019-07-25 10:07 ` [Qemu-devel] [PATCH v7 0/9] NBD reconnect Vladimir Sementsov-Ogievskiy
2019-08-21 11:41 ` Vladimir Sementsov-Ogievskiy
2019-08-21 14:47 ` Eric Blake
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