apisix/t/admin/balancer.t
罗泽轩 8dcbe4e00d
feat: let balancer support priority (#3755)
Fix #1809
Signed-off-by: spacewander <spacewanderlzx@gmail.com>
2021-03-10 14:56:26 +08:00

254 lines
7.2 KiB
Perl

#
# 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(2);
no_long_string();
no_root_location();
add_block_preprocessor(sub {
my ($block) = @_;
my $init_by_lua_block = <<_EOC_;
require "resty.core"
apisix = require("apisix")
core = require("apisix.core")
apisix.http_init()
function test(route, ctx, count)
local balancer = require("apisix.balancer")
local res = {}
for i = 1, count or 12 do
ctx.balancer_try_count = 0
local server, err = balancer.pick_server(route, ctx)
if err then
ngx.say("failed: ", err)
end
core.log.warn("host: ", server.host, " port: ", server.port)
res[server.host] = (res[server.host] or 0) + 1
end
local keys = {}
for k,v in pairs(res) do
table.insert(keys, k)
end
table.sort(keys)
for _, key in ipairs(keys) do
ngx.say("host: ", key, " count: ", res[key])
end
ctx.server_picker = nil
end
_EOC_
$block->set_value("init_by_lua_block", $init_by_lua_block);
});
run_tests;
__DATA__
=== TEST 1: roundrobin with same weight
--- config
location /t {
content_by_lua_block {
local up_conf = {
type = "roundrobin",
nodes = {
{host = "39.97.63.215", port = 80, weight = 1, priority = 0},
{host = "39.97.63.216", port = 81, weight = 1, priority = 0},
{host = "39.97.63.217", port = 82, weight = 1, priority = 0},
}
}
local ctx = {conf_version = 1}
ctx.upstream_conf = up_conf
ctx.upstream_version = "ver"
ctx.upstream_key = up_conf.type .. "#route_" .. "id"
test(route, ctx)
}
}
--- request
GET /t
--- response_body
host: 39.97.63.215 count: 4
host: 39.97.63.216 count: 4
host: 39.97.63.217 count: 4
--- no_error_log
[error]
=== TEST 2: roundrobin with different weight
--- config
location /t {
content_by_lua_block {
local up_conf = {
type = "roundrobin",
nodes = {
{host = "39.97.63.215", port = 80, weight = 1, priority = 0},
{host = "39.97.63.216", port = 81, weight = 2, priority = 0},
{host = "39.97.63.217", port = 82, weight = 3, priority = 0},
}
}
local ctx = {conf_version = 1}
ctx.upstream_conf = up_conf
ctx.upstream_version = "ver"
ctx.upstream_key = up_conf.type .. "#route_" .. "id"
test(route, ctx)
}
}
--- request
GET /t
--- response_body
host: 39.97.63.215 count: 2
host: 39.97.63.216 count: 4
host: 39.97.63.217 count: 6
--- no_error_log
[error]
=== TEST 3: roundrobin, cached server picker by version
--- config
location /t {
content_by_lua_block {
local up_conf = {
type = "roundrobin",
nodes = {
{host = "39.97.63.215", port = 80, weight = 1, priority = 0},
{host = "39.97.63.216", port = 81, weight = 1, priority = 0},
{host = "39.97.63.217", port = 82, weight = 1, priority = 0},
}
}
local ctx = {}
ctx.upstream_conf = up_conf
ctx.upstream_version = 1
ctx.upstream_key = up_conf.type .. "#route_" .. "id"
test(route, ctx)
-- cached by version
up_conf.nodes = {
{host = "39.97.63.218", port = 80, weight = 1, priority = 0},
{host = "39.97.63.219", port = 80, weight = 0, priority = 0},
}
test(route, ctx)
-- update, version changed
ctx.upstream_version = 2
test(route, ctx)
}
}
--- request
GET /t
--- response_body
host: 39.97.63.215 count: 4
host: 39.97.63.216 count: 4
host: 39.97.63.217 count: 4
host: 39.97.63.215 count: 4
host: 39.97.63.216 count: 4
host: 39.97.63.217 count: 4
host: 39.97.63.218 count: 12
--- no_error_log
[error]
=== TEST 4: chash
--- config
location /t {
content_by_lua_block {
local up_conf = {
type = "chash",
key = "remote_addr",
nodes = {
{host = "39.97.63.215", port = 80, weight = 1, priority = 0},
{host = "39.97.63.216", port = 81, weight = 1, priority = 0},
{host = "39.97.63.217", port = 82, weight = 1, priority = 0},
}
}
local ctx = {
var = {remote_addr = "127.0.0.1"},
}
ctx.upstream_conf = up_conf
ctx.upstream_version = 1
ctx.upstream_key = up_conf.type .. "#route_" .. "id"
test(route, ctx)
-- cached by version
up_conf.nodes = {
{host = "39.97.63.218", port = 80, weight = 1, priority = 0},
{host = "39.97.63.219", port = 80, weight = 0, priority = 0},
}
test(route, ctx)
-- update, version changed
ctx.upstream_version = 2
test(route, ctx)
}
}
--- request
GET /t
--- response_body
host: 39.97.63.215 count: 12
host: 39.97.63.215 count: 12
host: 39.97.63.218 count: 12
--- no_error_log
[error]
=== TEST 5: return item directly if only have one item in `nodes`
--- config
location /t {
content_by_lua_block {
local up_conf = {
type = "roundrobin",
nodes = {
{host = "39.97.63.215", port = 80, weight = 1, priority = 0},
{host = "39.97.63.216", port = 81, weight = 1, priority = 0},
{host = "39.97.63.217", port = 82, weight = 1, priority = 0},
}
}
local ctx = {}
ctx.upstream_conf = up_conf
ctx.upstream_version = 1
ctx.upstream_key = up_conf.type .. "#route_" .. "id"
test(route, ctx)
-- one item in nodes, return it directly
up_conf.nodes = {
{host = "39.97.63.218", port = 80, weight = 1, priority = 0},
}
test(route, ctx)
}
}
--- request
GET /t
--- response_body
host: 39.97.63.215 count: 4
host: 39.97.63.216 count: 4
host: 39.97.63.217 count: 4
host: 39.97.63.218 count: 12
--- no_error_log
[error]