ping 31.07.2018 20:30, Vladimir Sementsov-Ogievskiy wrote:
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). v4: - add Eric's r-b to 01. - drop CONNECTING_INIT mode, don't reconnect on _open. - new api: only one parameter @reconnect-delay - new interval scheme between reconnect attempts (1 - 2 - 4 - 8 - 16 - 16 ... seconds) - fixes and refactorings in main patch (09), including merge with old 08 patchv3: 06: fix build error in function 'nbd_co_send_request': error: 'i' may be used uninitialized in this function v2 notes: Here is v2 of NBD reconnect, but it is very very different from v1, so, forget about v1. The series includes my "NBD reconnect: preliminary refactoring", with changes in 05: leave asserts (Eric). Vladimir Sementsov-Ogievskiy (10): block/nbd-client: split channel errors from export errors block/nbd: move connection code from block/nbd to block/nbd-client block/nbd-client: split connection from initialization block/nbd-client: fix nbd_reply_chunk_iter_receive block/nbd-client: don't check ioc block/nbd-client: move from quit to state block/nbd-client: rename read_reply_co to connection_co block/nbd: add cmdline and qapi parameter reconnect-delay block/nbd-client: nbd reconnect iotests: test nbd reconnect qapi/block-core.json | 12 +- block/nbd-client.h | 20 +- block/nbd-client.c | 515 +++++++++++++++++++++++++++++++----------- block/nbd.c | 56 ++--- tests/qemu-iotests/220 | 67 ++++++ tests/qemu-iotests/220.out | 7 + tests/qemu-iotests/group | 1 + tests/qemu-iotests/iotests.py | 4 + 8 files changed, 512 insertions(+), 170 deletions(-) create mode 100755 tests/qemu-iotests/220 create mode 100644 tests/qemu-iotests/220.out
-- Best regards, Vladimir
