From a38299bf431a891c0a21a77199e7148c0983413e Mon Sep 17 00:00:00 2001 From: Zhang Chen Date: Tue, 1 Nov 2016 11:38:12 +0800 Subject: docs: fix COLO architecture diagram Fix COLO-Proxy part of COLO architecture diagram Signed-off-by: Zhang Chen Reviewed-by: zhanghailiang Signed-off-by: Jason Wang --- docs/COLO-FT.txt | 72 +++++++++++++++++++++++++++++--------------------------- 1 file changed, 37 insertions(+), 35 deletions(-) (limited to 'docs') diff --git a/docs/COLO-FT.txt b/docs/COLO-FT.txt index 628293824c..e289be2f41 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 == -- cgit v1.2.1