2020-08-29 23:14:16 +08:00
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#
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# Licensed to the Apache Software Foundation (ASF) under one or more
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# contributor license agreements. See the NOTICE file distributed with
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# this work for additional information regarding copyright ownership.
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# The ASF licenses this file to You under the Apache License, Version 2.0
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# (the "License"); you may not use this file except in compliance with
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# the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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use t::APISIX 'no_plan';
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repeat_each(1);
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#no_long_string();
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no_root_location();
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log_level('info');
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run_tests;
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__DATA__
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=== TEST 1: add upstream
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--- config
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location /t {
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content_by_lua_block {
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local t = require("lib.test_admin").test
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local code, body = t('/apisix/admin/routes/1',
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ngx.HTTP_PUT,
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[[{
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 100,
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"127.0.0.1:1981": 100
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},
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"type": "ewma"
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},
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"uri": "/ewma"
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}]]
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)
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if code >= 300 then
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ngx.status = code
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end
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ngx.say(body)
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}
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}
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--- request
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GET /t
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--- response_body
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passed
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--- no_error_log
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[error]
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=== TEST 2: about latency
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--- timeout: 5
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--- config
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location /t {
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content_by_lua_block {
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--node: "127.0.0.1:1980": latency is 0.001
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--node: "127.0.0.1:1981": latency is 0.005
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local http = require "resty.http"
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local uri = "http://127.0.0.1:" .. ngx.var.server_port
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.. "/ewma"
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local ports_count = {}
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for i = 1, 12 do
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local httpc = http.new()
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httpc:set_timeout(1000)
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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ports_count[res.body] = (ports_count[res.body] or 0) + 1
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end
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local ports_arr = {}
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for port, count in pairs(ports_count) do
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table.insert(ports_arr, {port = port, count = count})
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end
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local function cmd(a, b)
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return a.port > b.port
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end
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table.sort(ports_arr, cmd)
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2020-11-30 10:32:35 +08:00
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ngx.say(require("toolkit.json").encode(ports_arr))
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2020-08-29 23:14:16 +08:00
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ngx.exit(200)
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}
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}
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--- request
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GET /t
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--- response_body
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[{"count":1,"port":"1981"},{"count":11,"port":"1980"}]
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--- error_code: 200
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--- no_error_log
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[error]
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2020-09-30 17:05:46 +08:00
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2020-08-29 23:14:16 +08:00
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=== TEST 3: about frequency
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--- timeout: 30
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--- config
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location /t {
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content_by_lua_block {
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local t = require("lib.test_admin").test
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local http = require "resty.http"
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local uri = "http://127.0.0.1:" .. ngx.var.server_port
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.. "/ewma"
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--node: "127.0.0.1:1980": latency is 0.001
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--node: "127.0.0.1:1981": latency is 0.005
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local ports_count = {}
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for i = 1, 2 do
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local httpc = http.new()
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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end
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--remove the 1981 node,
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--add the 1982 node
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--keep two nodes for triggering ewma logic in server_picker function of balancer phase
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local code, body = t('/apisix/admin/routes/1',
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ngx.HTTP_PUT,
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[[{
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 100,
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"127.0.0.1:1982": 100
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},
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"type": "ewma"
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},
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"uri": "/ewma"
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}]]
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)
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if code ~= 200 then
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ngx.say("update route failed")
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return
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end
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2021-01-29 17:17:22 +08:00
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ngx.sleep(11)
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2020-08-29 23:14:16 +08:00
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--keep the node 1980 hot
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for i = 1, 12 do
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local httpc = http.new()
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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end
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--recover the 1981 node
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local code, body = t('/apisix/admin/routes/1',
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ngx.HTTP_PUT,
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[[{
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 100,
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"127.0.0.1:1981": 100
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},
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"type": "ewma"
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},
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"uri": "/ewma"
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}]]
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)
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if code ~= 200 then
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ngx.say("update route failed")
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return
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end
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--should select the 1981 node,because it is idle
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local httpc = http.new()
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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2020-11-30 10:32:35 +08:00
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ngx.say(require("toolkit.json").encode({port = res.body, count = 1}))
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2020-08-29 23:14:16 +08:00
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ngx.exit(200)
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}
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}
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--- request
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GET /t
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--- response_body
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{"count":1,"port":"1981"}
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--- error_code: 200
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--- no_error_log
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[error]
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2021-01-29 17:17:22 +08:00
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=== TEST 4: about filter tried servers
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--- timeout: 10
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--- config
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location /t {
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content_by_lua_block {
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local t = require("lib.test_admin").test
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--remove the 1981 node,
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--add the 9527 node (invalid node)
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--keep two nodes for triggering ewma logic in server_picker function of balancer phase
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local code, body = t('/apisix/admin/routes/1',
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ngx.HTTP_PUT,
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[[{
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"upstream": {
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"nodes": {
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"127.0.0.1:1980": 1,
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"127.0.0.1:9527": 1
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},
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"type": "ewma",
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"timeout": {
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"connect": 0.1,
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"send": 0.5,
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"read": 0.5
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}
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},
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"uri": "/ewma"
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}]]
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)
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if code ~= 200 then
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ngx.say("update route failed")
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return
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end
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local http = require "resty.http"
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local uri = "http://127.0.0.1:" .. ngx.var.server_port
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.. "/ewma"
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--should always select the 1980 node, because 0 is invalid
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local t = {}
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local ports_count = {}
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for i = 1, 12 do
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local th = assert(ngx.thread.spawn(function(i)
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local httpc = http.new()
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httpc:set_timeout(2000)
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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ports_count[res.body] = (ports_count[res.body] or 0) + 1
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end, i))
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table.insert(t, th)
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end
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for i, th in ipairs(t) do
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ngx.thread.wait(th)
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end
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local ports_arr = {}
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for port, count in pairs(ports_count) do
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table.insert(ports_arr, {port = port, count = count})
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end
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local function cmd(a, b)
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return a.port > b.port
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end
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table.sort(ports_arr, cmd)
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ngx.say(require("toolkit.json").encode(ports_arr))
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ngx.exit(200)
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}
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}
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--- request
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GET /t
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--- response_body
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[{"count":12,"port":"1980"}]
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--- error_code: 200
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--- error_log
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Connection refused) while connecting to upstream
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=== TEST 5: about all endpoints have been retried
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--- timeout: 10
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--- config
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location /t {
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content_by_lua_block {
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local t = require("lib.test_admin").test
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--add the 9527 node (invalid node)
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--add the 9528 node (invalid node)
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--keep two nodes for triggering ewma logic in server_picker function of balancer phase
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local code, body = t('/apisix/admin/routes/1',
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ngx.HTTP_PUT,
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[[{
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"upstream": {
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"nodes": {
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"127.0.0.1:9527": 1,
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"127.0.0.1:9528": 1
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},
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"type": "ewma",
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"timeout": {
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"connect": 0.1,
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"send": 0.5,
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"read": 0.5
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}
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},
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"uri": "/ewma"
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}]]
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)
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if code ~= 200 then
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ngx.say("update route failed")
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return
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end
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local http = require "resty.http"
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local uri = "http://127.0.0.1:" .. ngx.var.server_port
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.. "/ewma"
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--should always return 502, because both 9527 and 9528 are invalid
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local t = {}
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local ports_count = {}
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for i = 1, 12 do
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local th = assert(ngx.thread.spawn(function(i)
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local httpc = http.new()
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httpc:set_timeout(2000)
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local res, err = httpc:request_uri(uri, {method = "GET", keepalive = false})
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if not res then
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ngx.say(err)
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return
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end
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ports_count[res.status] = (ports_count[res.status] or 0) + 1
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end, i))
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table.insert(t, th)
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end
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for i, th in ipairs(t) do
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ngx.thread.wait(th)
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end
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local ports_arr = {}
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for port, count in pairs(ports_count) do
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table.insert(ports_arr, {port = port, count = count})
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end
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local function cmd(a, b)
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return a.port > b.port
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end
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table.sort(ports_arr, cmd)
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ngx.say(require("toolkit.json").encode(ports_arr))
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ngx.exit(200)
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}
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}
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--- request
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GET /t
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--- response_body
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[{"count":12,"port":502}]
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--- error_code: 200
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--- error_log
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Connection refused) while connecting to upstream
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