dc897c042014999694a0bcdbfa0a1b58adb84df6 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/2131c731d00b49c6ac0106495817b79b5d74aab8 2131c731d00b49c6ac0106495817b79b5d74aab8 2009-09-23T10:38:16-07:00 2009-09-23T10:38:16-07:00 Fix best_sched_score initialisation on 64-bit architectures Thanks to Victor Lavrenko for reporting, analysing and providing a patch. 448637f61e2ad31c7283857aebf23c304e34f513 Grzegorz Nosek root@localdomain.pl 8fac71e7fa02ad84b155e0c2e3f6c383ac950ba0 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/dc897c042014999694a0bcdbfa0a1b58adb84df6 dc897c042014999694a0bcdbfa0a1b58adb84df6 2008-10-12T08:51:16-07:00 2008-10-12T08:51:16-07:00 Silly logic bug in idle/no_rr mode checking Yay for De Morgan's laws. b2f16d471fba0c5b4ae3d131c8587e9d31fa6e13 Grzegorz Nosek root@localdomain.pl 892a22b3610bfe5ba77527d5e141a943fec3b3c2 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/8fac71e7fa02ad84b155e0c2e3f6c383ac950ba0 8fac71e7fa02ad84b155e0c2e3f6c383ac950ba0 2008-10-05T01:01:55-07:00 2008-10-05T01:01:55-07:00 upstream_fair has a home page! Update README f349e8bb80cd97e487465b9f2b12418d8604efc3 Grzegorz Nosek root@localdomain.pl a7a43a16f270206aceb8ead58cc83b9c24997b96 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/892a22b3610bfe5ba77527d5e141a943fec3b3c2 892a22b3610bfe5ba77527d5e141a943fec3b3c2 2008-09-22T10:17:43-07:00 2008-09-22T10:13:20-07:00 Status handler improvements and fixes 36b0369f74db85f2be40d31b16a6ef32ae700e81 Grzegorz Nosek root@localdomain.pl 009ae97e4c6bc779605660803fc7f5ecf27c1290 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/a7a43a16f270206aceb8ead58cc83b9c24997b96 a7a43a16f270206aceb8ead58cc83b9c24997b96 2008-09-21T12:25:00-07:00 2008-09-21T12:06:28-07:00 Replace per-worker refcount with a concurrent request counter f16004bd517f2effcfd3bd9faf6e349fb5f58cc2 Grzegorz Nosek root@localdomain.pl fe9b808993a9c35837403c15e90b9b9946a72c6c Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/009ae97e4c6bc779605660803fc7f5ecf27c1290 009ae97e4c6bc779605660803fc7f5ecf27c1290 2008-09-21T12:23:23-07:00 2008-09-21T11:49:47-07:00 Keep our own generation counter instead of relying on ngx_cycle 5179ba9e0cf571d541527cd2798ffed7fc29e9fc Grzegorz Nosek root@localdomain.pl 81f3b59fef24545d6ee03bc3946ca722f7a95260 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/fe9b808993a9c35837403c15e90b9b9946a72c6c fe9b808993a9c35837403c15e90b9b9946a72c6c 2008-09-21T12:19:27-07:00 2008-09-21T05:18:06-07:00 Don't store pointers inside the shm segment at all (an exceptional use-case is the status handler but it takes care to do things safely) 8d53aa4101ee648c19d6fe3669da5aae8a5c957b Grzegorz Nosek root@localdomain.pl b49388d99b19a588bbe16db366976c2498c3fa3a Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/81f3b59fef24545d6ee03bc3946ca722f7a95260 81f3b59fef24545d6ee03bc3946ca722f7a95260 2008-09-21T12:19:24-07:00 2008-09-21T05:06:49-07:00 Use ngx_cycle instead of various tricks to store the current cycle somewhere 12f9e49d4d4de295963472a3b1b4287d1e9f9311 Grzegorz Nosek root@localdomain.pl 6a58ae87bba89bfac6a711fc7640cb6f43e47a19 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/b49388d99b19a588bbe16db366976c2498c3fa3a b49388d99b19a588bbe16db366976c2498c3fa3a 2008-09-21T12:18:23-07:00 2008-09-21T12:18:23-07:00 Fix (another) crash in status display after reload fcf77969aac072ac79bff86003681ea12f4169a9 Grzegorz Nosek root@localdomain.pl 61087a3429087094abb1028be744b759345f6280 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/6a58ae87bba89bfac6a711fc7640cb6f43e47a19 6a58ae87bba89bfac6a711fc7640cb6f43e47a19 2008-09-21T12:13:12-07:00 2008-09-21T03:10:57-07:00 Debug message tweaks 030aae34ef0858d501649458c7147571688db70a Grzegorz Nosek root@localdomain.pl 976a043a410a1ad74be1f0588ebe4a78b304095d Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/61087a3429087094abb1028be744b759345f6280 61087a3429087094abb1028be744b759345f6280 2008-09-20T10:51:51-07:00 2008-09-20T10:51:51-07:00 weight_mode=(idle|peak) parameter support Weight mode 'idle' means that a backend is considered idle when servicing less than 'weight' requests. This has special meaning when running in no_rr mode. The backends are chosen from the following groups with descending priority: - backends with 1 <= nreq <= weight (by descending nreq) - totally idle backends - all other (busy) backends This mode (idle+no_rr) is particularly suited to small setups with backends started on demand. It requires care in bigger installations, as it may overload a range of backends without ever using others. Weight mode 'peak' means that no backend may serve more than 'weight' requests at once. Once this limit is reached, nginx starts to return 502 errors. This is useful when you want to limit the load on your backends at the price of errors sent to the client (although this might be an advantage in e.g. tiered load balancer setups). So the distinct modes of upstream_fair operation are: * default * no_rr * no_rr weight_mode=idle * weight_mode=peak All other combinations are more or less pointless, at least for now. e2b85112725cf238aba7f94530aa605f6108e644 Grzegorz Nosek root@localdomain.pl 62cd562ac673296fac693a77432aedf336fe6146 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/976a043a410a1ad74be1f0588ebe4a78b304095d 976a043a410a1ad74be1f0588ebe4a78b304095d 2008-09-20T06:48:00-07:00 2008-09-20T06:48:00-07:00 Replace atomic ops with normal ones (except the spinlock, of course) 5aaded4c3d5d02f0ac5701ae859b5ac47e387769 Grzegorz Nosek root@localdomain.pl 43f4359edcada246031f6e717af1bde8436a2524 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/62cd562ac673296fac693a77432aedf336fe6146 62cd562ac673296fac693a77432aedf336fe6146 2008-09-20T05:21:43-07:00 2008-09-20T05:21:43-07:00 Fix status report for multiple fair upstreams 8a92a21aeba6d8e3e31d6e7f6d4bd82aa39ea8fa Grzegorz Nosek root@localdomain.pl 79946ba334ba10f9e2a469961fc58004e5479579 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/43f4359edcada246031f6e717af1bde8436a2524 43f4359edcada246031f6e717af1bde8436a2524 2008-09-18T10:15:54-07:00 2008-09-18T10:15:54-07:00 Use per-upstream spinlock to protect access to shared memory 6bfe185df861608d5c32e9c93a5ae8aba74dd5f3 Grzegorz Nosek root@localdomain.pl be0d30a0c1de5596dfc70e4b2e345013b44730d9 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/79946ba334ba10f9e2a469961fc58004e5479579 79946ba334ba10f9e2a469961fc58004e5479579 2008-09-16T14:21:58-07:00 2008-09-16T14:21:58-07:00 Fix crash in status handler if called right after reload 5773a99e42a20223b4e4cfbee188f50ca01a9c74 Grzegorz Nosek root@localdomain.pl 085e8a1ff18dab46f0b0fc78f3a39f414129a39d Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/be0d30a0c1de5596dfc70e4b2e345013b44730d9 be0d30a0c1de5596dfc70e4b2e345013b44730d9 2008-09-16T14:05:35-07:00 2008-09-16T14:05:35-07:00 Use monotonic request counter instead of time data, track total number of requests per upstream and per backend 531f92634d5e53c356510d8082a9573a254cbeed Grzegorz Nosek root@localdomain.pl 6a126f9ea8fb74733ab52b68dff21f26c7367673 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/085e8a1ff18dab46f0b0fc78f3a39f414129a39d 085e8a1ff18dab46f0b0fc78f3a39f414129a39d 2008-09-16T12:24:04-07:00 2008-09-16T12:24:04-07:00 The `fair' directive now takes parameters. Currently the only parameter is `no-rr' which disables round-robin behaviour, i.e. if you only need X backends to keep up with your peak load, backends X+1 should never receive any requests. Note that this does make the load balancer unfair as requests are definitely not distributed evenly. 72f35c4cb5954f42e60abd1c4aaff1e9fe721f7e Grzegorz Nosek root@localdomain.pl 75840cf767a41e579b96fef2f22c0545969868e7 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/6a126f9ea8fb74733ab52b68dff21f26c7367673 6a126f9ea8fb74733ab52b68dff21f26c7367673 2008-06-29T10:43:36-07:00 2008-06-29T10:43:36-07:00 --with-extended-status support in upstream_fair The data returned is more for debugging purposes than real production monitoring, so this is still proof-of-concept stage. 4b0a37943718bb204961a3069a24a83a857747ee Grzegorz Nosek root@localdomain.pl c9c16970ae9ca6cef17fecec2f6723ed90e2a942 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/75840cf767a41e579b96fef2f22c0545969868e7 75840cf767a41e579b96fef2f22c0545969868e7 2008-06-29T10:35:04-07:00 2008-06-29T10:35:04-07:00 Show upstream name in gdb show_fair_peers command cafbd78088829356b6f25b0488bf3fe68c00ef05 Grzegorz Nosek root@localdomain.pl 46667a1b273af41ed7d72d6bd3683834e4661e54 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/c9c16970ae9ca6cef17fecec2f6723ed90e2a942 c9c16970ae9ca6cef17fecec2f6723ed90e2a942 2008-06-26T12:52:25-07:00 2008-06-26T12:52:25-07:00 Fix compile error on some platforms Reported by Jeff Berg 188c2710bbb0310768e4a6cada0b9405f9153369 Grzegorz Nosek root@localdomain.pl 823ca755d3a0ffce28d45d73b9f433e69fec127e Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/46667a1b273af41ed7d72d6bd3683834e4661e54 46667a1b273af41ed7d72d6bd3683834e4661e54 2008-06-17T23:02:50-07:00 2008-06-17T23:02:50-07:00 Update gdb macros caa8f860ff87d0524d55ddc672bb84730bb3bef8 Grzegorz Nosek root@localdomain.pl 743c501d2e0e7add4ba75d1e27af5a522c0c25a8 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/823ca755d3a0ffce28d45d73b9f433e69fec127e 823ca755d3a0ffce28d45d73b9f433e69fec127e 2008-06-17T22:59:02-07:00 2008-06-17T22:59:02-07:00 Move ->fails and ->current_weight to shm, remove fp->shared aa97d731a6feebaf641ac5c812da26e113dd0507 Grzegorz Nosek root@localdomain.pl fb16e36e57119cf178459053191703b711312bd0 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/743c501d2e0e7add4ba75d1e27af5a522c0c25a8 743c501d2e0e7add4ba75d1e27af5a522c0c25a8 2008-06-17T22:45:10-07:00 2008-06-17T22:45:10-07:00 Update gdb macros to reflect latest changes bf5a398b3d2db4279ed35210032fdf4ed4be2ac1 Grzegorz Nosek root@localdomain.pl d29d05e4082a7e5c6a5f32b90264817605248d84 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/fb16e36e57119cf178459053191703b711312bd0 fb16e36e57119cf178459053191703b711312bd0 2008-06-17T22:39:29-07:00 2008-06-17T22:39:29-07:00 Incorporate fair_rr_peers into rr_peers structure a27da882ca0a6cd018ea04268e8515547a2ce104 Grzegorz Nosek root@localdomain.pl e0e43a85e643b7eb6d2347e8ebd988144f9395a8 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/d29d05e4082a7e5c6a5f32b90264817605248d84 d29d05e4082a7e5c6a5f32b90264817605248d84 2008-06-17T22:27:20-07:00 2008-06-17T22:27:20-07:00 Mostly mechanical conversion to no longer use round_robin's data structures f36dc83b4aacf6466358dcc125704e92aa8c5cd5 Grzegorz Nosek root@localdomain.pl c9b5a00d0f9b488be874e49ee21dc318855f6378 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/e0e43a85e643b7eb6d2347e8ebd988144f9395a8 e0e43a85e643b7eb6d2347e8ebd988144f9395a8 2008-06-17T22:06:30-07:00 2008-06-17T22:06:30-07:00 Copy the last required bits from rr to upstream_fair upstream_fair is now completely independent from the round robin module (except of course of lots of copy-pasted code). 59021a6d9fa4d7ab73e2c0ee74ff8c9ecc654592 Grzegorz Nosek root@localdomain.pl 7b17344cfa552eb73576da301896d83e79011253 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/c9b5a00d0f9b488be874e49ee21dc318855f6378 c9b5a00d0f9b488be874e49ee21dc318855f6378 2008-06-15T11:01:25-07:00 2008-06-15T11:01:25-07:00 Add a vim modeline to match nginx tab style 195f733e1c0afac077598e1412102b950405f140 Grzegorz Nosek root@localdomain.pl d2ea47e99168f307c334777c4befc85aeae94173 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/7b17344cfa552eb73576da301896d83e79011253 7b17344cfa552eb73576da301896d83e79011253 2008-06-15T10:49:46-07:00 2008-06-15T10:49:46-07:00 Ensure proper nreq tracking f570cb9ce6dc54a9f9ec693973b603a3c83abfcf Grzegorz Nosek root@localdomain.pl 779d43b4ec5d9a93d9e69b640bb6c01eb21badd9 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/d2ea47e99168f307c334777c4befc85aeae94173 d2ea47e99168f307c334777c4befc85aeae94173 2008-06-14T14:03:33-07:00 2008-06-14T12:29:59-07:00 Better tries and weight tracking a0e4fb70f898f241266a56fea18c9e0afbdd19ef Grzegorz Nosek root@localdomain.pl 1e1b0be1301cdf1d2b6f2b91983a495f257a0306 Grzegorz Nosek root@localdomain.pl http://github.com/gnosek/nginx-upstream-fair/commit/779d43b4ec5d9a93d9e69b640bb6c01eb21badd9 779d43b4ec5d9a93d9e69b640bb6c01eb21badd9 2008-06-14T14:03:33-07:00 2008-06-14T12:27:50-07:00 Use proper pointer type instead of void* in shm_block_t 2458c3a4ed573bbf1c65bc4dc786a1e6689a552c Grzegorz Nosek root@localdomain.pl