apisix/t/node/chash-balance.t
罗泽轩 e58a55fbc6
fix(chash): ensure retry can try every node (#3651)
Previously the default number of retry is equal to the number of node,
but the same node will be tried again according to its weight.

Also ensure the same picker will be used in the whole request,
especially during the retry.
2021-02-27 22:17:22 +08:00

559 lines
14 KiB
Perl
Vendored

#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
use t::APISIX 'no_plan';
repeat_each(1);
log_level('info');
no_root_location();
worker_connections(1024);
no_shuffle();
run_tests();
__DATA__
=== TEST 1: set route(two upstream node)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "remote_addr",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 1,
"127.0.0.1:1981": 1
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 2: hit routes
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port"
local ports_count = {}
for i = 1, 12 do
local httpc = http.new()
local res, err = httpc:request_uri(uri, {method = "GET"})
if not res then
ngx.say(err)
return
end
ports_count[res.body] = (ports_count[res.body] or 0) + 1
end
local ports_arr = {}
for port, count in pairs(ports_count) do
table.insert(ports_arr, {port = port, count = count})
end
local function cmd(a, b)
return a.port > b.port
end
table.sort(ports_arr, cmd)
ngx.say(require("toolkit.json").encode(ports_arr))
ngx.exit(200)
}
}
--- request
GET /t
--- response_body
[{"count":12,"port":"1980"}]
--- no_error_log
[error]
=== TEST 3: set route(three upstream node)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "remote_addr",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 1,
"127.0.0.1:1981": 1,
"127.0.0.1:1982": 1
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 4: hit routes
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port"
local ports_count = {}
for i = 1, 12 do
local httpc = http.new()
local res, err = httpc:request_uri(uri, {method = "GET"})
if not res then
ngx.say(err)
return
end
ports_count[res.body] = (ports_count[res.body] or 0) + 1
end
local ports_arr = {}
for port, count in pairs(ports_count) do
table.insert(ports_arr, {port = port, count = count})
end
local function cmd(a, b)
return a.port > b.port
end
table.sort(ports_arr, cmd)
ngx.say(require("toolkit.json").encode(ports_arr))
ngx.exit(200)
}
}
--- request
GET /t
--- response_body
[{"count":12,"port":"1982"}]
--- no_error_log
[error]
=== TEST 5: set route(three upstream node)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "remote_addr",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 1,
"127.0.0.1:1981": 0,
"127.0.0.1:1982": 0
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 6: hit routes
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port"
local ports_count = {}
for i = 1, 12 do
local httpc = http.new()
local res, err = httpc:request_uri(uri, {method = "GET"})
if not res then
ngx.say(err)
return
end
ports_count[res.body] = (ports_count[res.body] or 0) + 1
end
local ports_arr = {}
for port, count in pairs(ports_count) do
table.insert(ports_arr, {port = port, count = count})
end
local function cmd(a, b)
return a.port > b.port
end
table.sort(ports_arr, cmd)
ngx.say(require("toolkit.json").encode(ports_arr))
ngx.exit(200)
}
}
--- request
GET /t
--- response_body
[{"count":12,"port":"1980"}]
--- no_error_log
[error]
=== TEST 7 set route(three upstream node with querystring)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "query_string",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 1,
"127.0.0.1:1981": 1,
"127.0.0.1:1982": 1
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 8: hit routes with querystring
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port?var=2&var2="
local t = {}
local ports_count = {}
for i = 1, 180 do
local th = assert(ngx.thread.spawn(function(i)
local httpc = http.new()
local res, err = httpc:request_uri(uri..i, {method = "GET"})
if not res then
ngx.log(ngx.ERR, err)
return
end
ports_count[res.body] = (ports_count[res.body] or 0) + 1
end, i))
table.insert(t, th)
end
for i, th in ipairs(t) do
ngx.thread.wait(th)
end
local ports_arr = {}
for port, count in pairs(ports_count) do
table.insert(ports_arr, {port = port, count = count})
end
local function cmd(a, b)
return a.count > b.count
end
table.sort(ports_arr, cmd)
if (ports_arr[1].count - ports_arr[3].count) / ports_arr[2].count > 0.2 then
ngx.say(require("toolkit.json").encode(ports_arr))
else
ngx.say('ok')
end
}
}
--- request
GET /t
--- wait: 5
--- response_body
ok
--- no_error_log
[error]
=== TEST 9: set route(three upstream node with arg_xxx)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "arg_device_id",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 1,
"127.0.0.1:1981": 1,
"127.0.0.1:1982": 1
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 10: hit routes with args
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port?device_id="
local t = {}
local ports_count = {}
for i = 1, 180 do
local th = assert(ngx.thread.spawn(function(i)
local httpc = http.new()
local res, err = httpc:request_uri(uri..i, {method = "GET"})
if not res then
ngx.log(ngx.ERR, err)
return
end
ports_count[res.body] = (ports_count[res.body] or 0) + 1
end, i))
table.insert(t, th)
end
for i, th in ipairs(t) do
ngx.thread.wait(th)
end
local ports_arr = {}
for port, count in pairs(ports_count) do
table.insert(ports_arr, {port = port, count = count})
end
local function cmd(a, b)
return a.count > b.count
end
table.sort(ports_arr, cmd)
if (ports_arr[1].count - ports_arr[3].count) / ports_arr[2].count > 0.2 then
ngx.say(require("toolkit.json").encode(ports_arr))
else
ngx.say('ok')
end
}
}
--- request
GET /t
--- wait: 5
--- response_body
ok
--- no_error_log
[error]
=== TEST 11: set route(weight 0)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "arg_device_id",
"type": "chash",
"nodes": {
"127.0.0.1:1980": 0,
"127.0.0.1:1981": 0
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 12: hit routes
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port?device_id=1"
local httpc = http.new()
local res, err = httpc:request_uri(uri, {method = "GET"})
if not res then
ngx.say(err)
return
end
ngx.status = res.status
ngx.say(res.body)
}
}
--- request
GET /t
--- error_code_like: ^(?:50\d)$
--- error_log
failed to find valid upstream server, no valid upstream node
=== TEST 13: set route(ensure retry can try every node)
--- config
location /t {
content_by_lua_block {
local t = require("lib.test_admin").test
local code, body = t('/apisix/admin/routes/1',
ngx.HTTP_PUT,
[[{
"uri": "/server_port",
"upstream": {
"key": "arg_device_id",
"type": "chash",
"nodes": {
"127.0.0.1:1979": 1000,
"127.0.0.1:1980": 1
}
}
}]]
)
if code >= 300 then
ngx.status = code
end
ngx.say(body)
}
}
--- request
GET /t
--- response_body
passed
--- no_error_log
[error]
=== TEST 14: hit routes
--- config
location /t {
content_by_lua_block {
local http = require "resty.http"
local uri = "http://127.0.0.1:" .. ngx.var.server_port
.. "/server_port?device_id=1"
local httpc = http.new()
local res, err = httpc:request_uri(uri, {method = "GET"})
if not res then
ngx.say(err)
return
end
ngx.say(res.status)
}
}
--- request
GET /t
--- response_body
200