Does anyone have any comments?
Ping....
Thanks
Zhang Chen
On 11/01/2016 03:06 PM, Zhang Chen wrote:
On 11/01/2016 02:25 PM, Hailiang Zhang wrote:
Hmm, there are other contents in this file need to be updated,
for example, we support blockdev-add command for nbd now,
so we can convert the related hmp command to qmp command way.
But since we didn't integrate COLO frame with block replication
and proxy, It is OK to fix them later.
For COLO, the basic capability is still incomplete,
but now we got into 'Soft feature freeze' stage,
I'm wondering if it is possible at this point to combine
COLO frame with proxy and block replication which only needs
three or four patches that only touch colo related files ...
Or uses still can't test COLO feature in qemu 2.8.
Any ideas ? Thanks.
I will send some patch about COLO-Proxy combine with COLO-frame in the
future.
On 2016/11/1 11:38, Zhang Chen wrote:
Fix COLO-Proxy part of COLO architecture diagram
Signed-off-by: Zhang Chen <zhangchen.f...@cn.fujitsu.com>
Reviewed-by: zhanghailiang <zhang.zhanghaili...@huawei.com>
All such patches can go through trivial branch.
Cc: qemu-triv...@nongnu.org
I think this patch about COLO architecture,
So, I didn't cc qemu-trivial.
Thanks
Zhang Chen
---
docs/COLO-FT.txt | 72
+++++++++++++++++++++++++++++---------------------------
1 file changed, 37 insertions(+), 35 deletions(-)
diff --git a/docs/COLO-FT.txt b/docs/COLO-FT.txt
index 6282938..e289be2 100644
--- a/docs/COLO-FT.txt
+++ b/docs/COLO-FT.txt
@@ -41,41 +41,43 @@ identical responses to all client requests. Once
the differences in the outputs
are detected between the PVM and SVM, COLO withholds transmission
of the
outbound packets until it has successfully synchronized the PVM
state to the SVM.
- Primary Node Secondary Node
- +------------+ +-----------------------+
+------------------------+ +------------+
- | | | HeartBeat |<----->| HeartBeat
| | |
- | Primary VM | +-----------|-----------+
+-----------|------------+ |Secondary VM|
- | | | | | |
- | | +-----------|-----------+
+-----------|------------+ | |
- | | |QEMU +---v----+ | |QEMU
+----v---+ | | |
- | | | |Failover| | |
|Failover| | | |
- | | | +--------+ | |
+--------+ | | |
- | | | +---------------+ | |
+---------------+ | | |
- | | | | VM Checkpoint |-------------->| VM
Checkpoint | | | |
- | | | +---------------+ | |
+---------------+ | | |
- | | | | |
| | |
-
|Requests<---------------------------^------------------------------------------>Requests|
- |Responses----------------------\ /--|--------------\
/------------------------Responses|
- | | | | | | | | |
| | | |
- | | | +-----------+ | | | | | | |
+------------+ | | |
- | | | | COLO disk | | | | | | | | | COLO
disk | | | |
- | | | | Manager |-|-|--|--------------|--|->|
Manager | | | |
- | | | +|----------+ | | | | | | |
+-----------|+ | | |
- | | | | | | | | | |
| | | | |
- +------------+ +--|------------|-|--|--+
+---|--|--------------|--+ +------------+
- | | | | |
| |
- +-------------+ | +----------v-v--|--+ +---|--v-----------+
| +-------------+
- | VM Monitor | | | COLO Proxy | | COLO Proxy
| | | VM Monitor |
- | | | |(compare packet) | | (adjust
sequence)| | | |
- +-------------+ | +----------|----^--+ +------------------+
| +-------------+
- | | | |
- +------------------|------------|----|--+
+---------------------|------------------+
- | Kernel | | | | |
Kernel | |
- +------------------|------------|----|--+
+---------------------|------------------+
- | | | |
- +--------------v+ +--------v----|--+ +------------------+
+v-------------+
- | Storage | |External Network| | External Network
| | Storage |
- +---------------+ +----------------+ +------------------+
+--------------+
+ Primary Node Secondary Node
++------------+ +-----------------------+
+------------------------+ +------------+
+| | | HeartBeat +<----->+ HeartBeat
| | |
+| Primary VM | +-----------+-----------+
+-----------+------------+ |Secondary VM|
+| | | | | |
+| | +-----------|-----------+
+-----------|------------+ | |
+| | |QEMU +---v----+ | |QEMU
+----v---+ | | |
+| | | |Failover| | | |Failover|
| | |
+| | | +--------+ | | +--------+
| | |
+| | | +---------------+ | |
+---------------+ | | |
+| | | | VM Checkpoint +-------------->+ VM Checkpoint
| | | |
+| | | +---------------+ | |
+---------------+ | | |
+|Requests<--------------------------\ /-----------------\
/--------------------->Requests|
+| | | ^ ^ | | |
| | | |
+|Responses+---------------------\ /-|-|------------\
/-------------------------+Responses|
+| | | | | | | | | | | |
| | | |
+| | | +-----------+ | | | | | | | | | |
+----------+ | | |
+| | | | COLO disk | | | | | | | | | | | | COLO
disk| | | |
+| | | | Manager +---------------------------->|
Manager | | | |
+| | | ++----------+ v v | | | | | v v |
+---------++ | | |
+| | | |+-----------+-+-+-++| |
++-+--+-+---------+ | | | |
+| | | || COLO Proxy || | | COLO Proxy
| | | | |
+| | | || (compare packet || | |(adjust sequence
| | | | |
+| | | ||and mirror packet)|| | | and ACK)
| | | | |
+| | | |+------------+---+-+| |
+-----------------+ | | | |
++------------+ +-----------------------+
+------------------------+ +------------+
++------------+ | | |
| +------------+
+| VM Monitor | | | |
| | VM Monitor |
++------------+ | | |
| +------------+
++---------------------------------------+
+----------------------------------------+
+| Kernel | | | | | Kernel
| |
++---------------------------------------+
+----------------------------------------+
+ | | | |
+ +--------------v+ +---------v---+--+ +------------------+
+v-------------+
+ | Storage | |External Network| | External Network
| | Storage |
+ +---------------+ +----------------+ +------------------+
+--------------+
+
== Components introduction ==
.
--
Thanks
zhangchen
