mirror of
https://gitee.com/iresty/apisix.git
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c351b38086
* bugfix(lrucache): one common use case for this library is avoid the so-called "dog-pile effect",
that is, to limit concurrent backend queries for the same key when a cache miss happens.
* bugfix: catch the error messag by pcall, it may fail when generate new validator.
282 lines
7.1 KiB
Perl
282 lines
7.1 KiB
Perl
#
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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: sanity
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_obj()
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idx = idx + 1
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return {idx = idx}
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end
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local obj = core.lrucache.global("key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.global("key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.global("key", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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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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obj: {"idx":1}
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obj: {"idx":1}
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obj: {"idx":2,"_cache_ver":"1"}
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--- no_error_log
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[error]
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=== TEST 2: plugin
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_obj()
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idx = idx + 1
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return {idx = idx}
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end
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local obj = core.lrucache.plugin("plugin-a", "key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.plugin("plugin-a", "key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.plugin("plugin-a", "key", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.plugin("plugin-b", "key", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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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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obj: {"idx":1}
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obj: {"idx":1}
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obj: {"idx":2,"_cache_ver":"1"}
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obj: {"idx":3,"_cache_ver":"1"}
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--- no_error_log
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[error]
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=== TEST 3: new
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_obj()
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idx = idx + 1
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return {idx = idx}
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end
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local lru_get = core.lrucache.new()
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local obj = lru_get("key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = lru_get("key", nil, create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = lru_get("key", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = lru_get("key", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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obj = lru_get("key-different", "1", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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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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obj: {"idx":1}
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obj: {"idx":1}
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obj: {"idx":2,"_cache_ver":"1"}
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obj: {"idx":2,"_cache_ver":"1"}
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obj: {"idx":3,"_cache_ver":"1"}
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--- no_error_log
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[error]
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=== TEST 4: cache the non-table object, eg: number or string
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_num()
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idx = idx + 1
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return idx
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end
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local obj = core.lrucache.global("key", nil, create_num)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.global("key", nil, create_num)
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ngx.say("obj: ", core.json.encode(obj))
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obj = core.lrucache.global("key", "1", create_num)
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ngx.say("obj: ", core.json.encode(obj))
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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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obj: 1
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obj: 1
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obj: 2
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--- no_error_log
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[error]
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=== TEST 5: sanity
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local function server_release(self)
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ngx.say("release: ", core.json.encode(self))
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end
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local lrucache_server_picker = core.lrucache.new({
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ttl = 300, count = 256, release = server_release,
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})
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local t1 = lrucache_server_picker("nnn", "t1",
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function () return {name = "aaa"} end)
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ngx.say("obj: ", core.json.encode(t1))
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local t2 = lrucache_server_picker("nnn", "t2",
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function () return {name = "bbb"} end)
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ngx.say("obj: ", core.json.encode(t2))
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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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obj: {"_cache_ver":"t1","name":"aaa"}
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release: {"_cache_ver":"t1","name":"aaa"}
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obj: {"_cache_ver":"t2","name":"bbb"}
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--- no_error_log
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[error]
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=== TEST 6: invalid_stale = true
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_obj()
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idx = idx + 1
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return {idx = idx}
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end
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local lru_get = core.lrucache.new({
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ttl = 0.1, count = 256, invalid_stale = true,
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})
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local obj = lru_get("key", "ver", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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local obj = lru_get("key", "ver", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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ngx.sleep(0.15)
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local obj = lru_get("key", "ver", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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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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obj: {"idx":1,"_cache_ver":"ver"}
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obj: {"idx":1,"_cache_ver":"ver"}
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obj: {"idx":2,"_cache_ver":"ver"}
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--- no_error_log
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[error]
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=== TEST 7: when creating cached objects, use resty-lock to avoid repeated creation.
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--- config
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location /t {
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content_by_lua_block {
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local core = require("apisix.core")
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local idx = 0
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local function create_obj()
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idx = idx + 1
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ngx.sleep(0.1)
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return {idx = idx}
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end
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local lru_get = core.lrucache.new({
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ttl = 0.1, count = 256, invalid_stale = true,
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})
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local function f()
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local obj = lru_get("key", "ver", create_obj)
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ngx.say("obj: ", core.json.encode(obj))
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end
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ngx.thread.spawn(f)
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ngx.thread.spawn(f)
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ngx.sleep(0.3)
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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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obj: {"idx":1,"_cache_ver":"ver"}
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obj: {"idx":1,"_cache_ver":"ver"}
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--- no_error_log
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[error]
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