GiganticRay commented on issue #2582:
URL: https://github.com/apache/brpc/issues/2582#issuecomment-3426101079
> > concurrency
>
> 每个Server可以设置不同的并发度 brpc::ServerOptions options; options.max_concurrency =
FLAGS_server1_concurrency;
>
> 也可以实现一个gflags的validator，实现动态修改并发度。 bool
SetMaxConcurrencyOfServer1Validator(const char*, const int32_t value) {
servers_map[tag].ResetMaxConcurrency(value); return true; }
感谢回复～ 我没有直接使用 brpc server，我直接使用的 bthread 组件起任务，目前想单独为不同的 tag 设置
concurrency，我直接通过 `bthread_setconcurrency_by_tag` 接口，会出现报错: ` "Fail to set
concurrency by tag, , Total concurrency larger than bthread_concurrency".`。
于是我转而去设置 bthread 的最大 concurrency，发现只有接口 bthread_setconcurrency 能设置
bthread::FLAGS_bthread_concurrency，但是除此之外，bthread_setconcurrency 还 “均分” 新的
worker 至每一个 tag:
https://github.com/apache/brpc/blob/046fd435c7377af2827349bde71b5736ca172406/src/bthread/bthread.cpp#L372
,设置后再次调用 `bthread_setconcurrency_by_tag` 会失败。
目前我自己修改了 bthread_setconcurrency_by_tag (based on release1.10)，看起来能解这个问题:
<img width="3388" height="926" alt="Image"
src="https://github.com/user-attachments/assets/d7263c51-f7c3-4487-a0ae-47f44588134a";
/>
想请教一下，现有 bthread 接口是否能满足“动态设置每一个 tag 的并发度”需求呢
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