Re: [Qemu-devel] [Qemu-block] [PATCH v4 00/10] NBD reconnect

[John Snow]

On 09/17/2018 11:26 AM, Vladimir Sementsov-Ogievskiy wrote:
> ping
> 

Is this still pending or did I/we miss a v5?

> 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 patch
>>     
>> v3:
>> 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
>>
> 
>