Hi Harshad, For now, this could work only in HAProxy 1.5, but not in current dev7 version. Up to haproxy 1.5-dev7, you can only apply this kind of tracking on IPs based tables, not on string tables.
Willy, EmerivBR told me you would release soon tracking based on string tables. Can you confirm ..... or not :) ?? cheers On Fri, Feb 3, 2012 at 4:15 PM, Harshad R <[email protected]> wrote: > Hi, > > Is it possible to maintain gpc0/connection rate based on an arbitrary > pattern fetch? > > My stick table is based on a header X-Session which is a string > pattern. I would like to rate limit based on UID it contains. > > Backend config: > backend app > balance roundrobin > server app1 127.0.0.1:80 check cookie app1 > stick-table type string size 200k store gpc0 > stick on uid > > We have implemented uid as a custom pattern fetch in code with > > > static int > pattern_fetch_uid(struct proxy *px, struct session *l4, void *l7, int dir, > const struct pattern_arg *arg_p, int arg_i, union > pattern_data *data) > { > struct hdr_ctx ctx; > struct http_txn *txn = l7; > struct http_msg *msg = &txn->req; > const char *hdr; > int hdr_len; > uauth_t uauth; > > ctx.idx = 0; > if(http_find_header2("X-Session", sizeof("X-Session")-1, > msg->sol, &txn->hdr_idx, &ctx)) { > .... > return 1; > } > } > > > static struct pattern_fetch_kw_list pattern_fetch_keywords = {{ },{ > { "uid", pattern_fetch_uid, NULL, PATTERN_TYPE_STRING, > PATTERN_FETCH_REQ }, > { NULL, NULL, NULL, 0, 0 }, > }}; > > > From the stats output, it is observed that gpc0 is not getting incremented. >> show table app > # table: app, type: string, size:204800, used:8 > 0xa510398: key=001 use=0 exp=0 server_id=1 gpc0=0 > 0xa518f18: key=11859 use=0 exp=0 server_id=1 gpc0=0 > 0xa519188: key=12375 use=0 exp=0 server_id=1 gpc0=0 > 0xa518d78: key=12603 use=0 exp=0 server_id=1 gpc0=0 > 0xa5190b8: key=17522 use=0 exp=0 server_id=1 gpc0=0 > 0xa518fe8: key=31653 use=0 exp=0 server_id=1 gpc0=0 > 0xa510468: key=31943 use=0 exp=0 server_id=1 gpc0=0 > 0xa518e48: key=3325 use=0 exp=0 server_id=1 gpc0=0 > > Is there a generic configuration operation to increment/get gpc0. e.g. > > stick increment gpc0 > acl abuse stick_get_gpc0 gt 10 > > Also, we would like to use frequency counter for this. e.g. > acl abuse stick_get_gpfc0 gt 10 > > Thanks, > Harshad >
