> You can check if the queue size is an issue monitoring with netstat Recv-Q and
> Send-Q for hastd connections during the test. Running something like below:
>
> while sleep 1; do netstat -na |grep '\.8457.*ESTAB'; done

Interesting - I ran those and started a complete resilvert (I do
this by changing the secindary to 'init', running 'create' and then
changing the role back to secondary)

On primary I get...

tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0  29872 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0    115 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0  80928 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0  32883 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0    115 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10062       10.17.18.2.8457        ESTABLISHED
tcp4       0      0 10.17.18.1.10061       10.17.18.2.8457        ESTABLISHED

And on the secondary....

tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4  105544      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4    8688      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4   84360      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4  102648      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4   17376      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4   64088      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4   34216      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED
tcp4       0      0 10.17.18.2.8457        10.17.18.1.10061       ESTABLISHED
tcp4       0     27 10.17.18.2.8457        10.17.18.1.10062       ESTABLISHED

Thats just an example - I see the same kind of behaviour throughout the
sychronisation process. I cant comopare it to gmirror+ggated, but it looks
far more bursty than I would expect.

-pete.

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