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gRPC: handling GOAWAY with a higher last stream identifier.

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Previously, once received from upstream, it couldn't limit
opening additional streams in a cached keepalive connection.
This commit is contained in:
Sergey Kandaurov 2021-06-17 11:43:55 +03:00
parent 5eadaf69e3
commit dcdf7ec096
1 changed files with 9 additions and 0 deletions
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9
src/http/modules/ngx_http_grpc_module.c
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@ -121,6 +121,7 @@ typedef struct {
unsigned done:1;
unsigned status:1;
unsigned rst:1;
unsigned goaway:1;
ngx_http_request_t *request;
@ -1210,6 +1211,7 @@ ngx_http_grpc_reinit_request(ngx_http_request_t *r)
ctx->done = 0;
ctx->status = 0;
ctx->rst = 0;
ctx->goaway = 0;
ctx->connection = NULL;
return NGX_OK;
@ -1565,6 +1567,7 @@ ngx_http_grpc_body_output_filter(void *data, ngx_chain_t *in)
&& ctx->out == NULL
&& ctx->output_closed
&& !ctx->output_blocked
&& !ctx->goaway
&& ctx->state == ngx_http_grpc_st_start)
{
u->keepalive = 1;
@ -1714,6 +1717,8 @@ ngx_http_grpc_process_header(ngx_http_request_t *r)
return NGX_HTTP_UPSTREAM_INVALID_HEADER;
}
ctx->goaway = 1;
continue;
}
@ -1907,6 +1912,7 @@ ngx_http_grpc_process_header(ngx_http_request_t *r)
&& ctx->out == NULL
&& ctx->output_closed
&& !ctx->output_blocked
&& !ctx->goaway
&& b->last == b->pos)
{
u->keepalive = 1;
@ -2035,6 +2041,7 @@ ngx_http_grpc_filter(void *data, ssize_t bytes)
if (ctx->in == NULL
&& ctx->output_closed
&& !ctx->output_blocked
&& !ctx->goaway
&& ctx->state == ngx_http_grpc_st_start)
{
u->keepalive = 1;
@ -2204,6 +2211,8 @@ ngx_http_grpc_filter(void *data, ssize_t bytes)
return NGX_ERROR;
}
ctx->goaway = 1;
continue;
}