### What this PR does / why we need it?
Resolve the issue of waiting queue accumulation when requests are
canceled.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
By ci
- vLLM version: v0.10.1.1
- vLLM main:
006477e60b
---------
Signed-off-by: wangxiaoteng666 <wangxiaoteng@huawei.com>
### What this PR does / why we need it?
The PR is the cherry-pick from v0.9.1
https://github.com/vllm-project/vllm-ascend/pull/1953
This PR introduce a new load balance proxy server example implementation
for disaggregated pd, which support simple token&kv_cache aware load
balance routing strategy for the disaggregated pd system compared with
origin round robin toy_proxy.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
tested on real workload and unittest
- vLLM version: v0.10.0
- vLLM main:
ad57f23f6a
---------
Signed-off-by: ganyi <pleaplusone.gy@gmail.com>
