如何知道要熔断的请求拥塞
How to know the request to fuse is congested
我是熔断新手。我有 2 个问题:
- 我可以只设置
congestion_threshold
本身的值而不更改默认值 max_background
吗?
- 如果pending和processing队列中的异步请求数量达到可调拥塞阈值参数的值,我怎么知道它拥塞了?在哪里查看日志记录? dmesg?
未经测试,看源码好像有这样一个单独的选项:https://github.com/libfuse/libfuse/blob/master/lib/helper.c#L90:
CONN_OPTION("congestion_threshold=%u", congestion_threshold, 0),
CONN_OPTION("congestion_threshold=", set_congestion_threshold, 1),
同样从代码来看,您似乎可以使用 fuse_parse_conn_info_opts
对其进行配置。见 https://github.com/libfuse/libfuse/blob/master/include/fuse_common.h#L523:
* The following options are recognized:
*
...
* -o max_background=N sets conn->max_background
* -o congestion_threshold=N sets conn->congestion_threshold
...
**/
struct fuse_conn_info_opts* fuse_parse_conn_info_opts(struct fuse_args *args);
查看内核代码,没有显示实际发生的拥塞。
我是熔断新手。我有 2 个问题:
- 我可以只设置
congestion_threshold
本身的值而不更改默认值max_background
吗? - 如果pending和processing队列中的异步请求数量达到可调拥塞阈值参数的值,我怎么知道它拥塞了?在哪里查看日志记录? dmesg?
未经测试,看源码好像有这样一个单独的选项:https://github.com/libfuse/libfuse/blob/master/lib/helper.c#L90:
CONN_OPTION("congestion_threshold=%u", congestion_threshold, 0),
CONN_OPTION("congestion_threshold=", set_congestion_threshold, 1),
同样从代码来看,您似乎可以使用 fuse_parse_conn_info_opts
对其进行配置。见 https://github.com/libfuse/libfuse/blob/master/include/fuse_common.h#L523:
* The following options are recognized:
*
...
* -o max_background=N sets conn->max_background
* -o congestion_threshold=N sets conn->congestion_threshold
...
**/
struct fuse_conn_info_opts* fuse_parse_conn_info_opts(struct fuse_args *args);
查看内核代码,没有显示实际发生的拥塞。