图1
1、在 K8s 中 HTTP 响应 502 Bad Gateway，message：An invalid response was received from the upstream server。从上游服务器收到无效响应。502 Bad Gateway 错误具体表示服务器收到来自入站服务器的无效响应。kong/2.5.0。如图1
2、原因在于 GET 请求参数过多，参数量过大。参数总字数超过 1300 个。
{{host_info}}{{base_url}}/v{{module}}/task-group-channel-app-sources?filter[group_id]={{group_id}}&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&filter[channel_type_code][in][19]=vtt_cashtoutiao&filter[channel_type_code][in][20]=vtt_dianping&filter[channel_type_code][in][21]=vtt_weibo&filter[channel_type_code][in][22]=vtt_sina&filter[channel_type_code][in][23]=vtt_iqiyi&filter[channel_type_code][in][24]=vtt_toutiao_pro&filter[channel_type_code][in][25]=vtt_bilibili&filter[channel_type_code][in][26]=vtt_netease&filter[channel_type_code][in][27]=vtt_sogou&per-page=100&group_id={{group_id}}
filter[channel_type_code][in][0]:vtt_douyin
filter[channel_type_code][in][1]:vtt_douyin_pro
filter[channel_type_code][in][2]:vtt_kuaishou
filter[channel_type_code][in][3]:vtt_kuaishou_pro
filter[channel_type_code][in][4]:vtt_baijia
filter[channel_type_code][in][5]:vtt_baijia_pro
filter[channel_type_code][in][6]:vtt_dayu
filter[channel_type_code][in][7]:vtt_dayu_pro
filter[channel_type_code][in][8]:vtt_qq
filter[channel_type_code][in][9]:vtt_yidian
filter[channel_type_code][in][10]:vtt_qutoutiao
filter[channel_type_code][in][11]:vtt_miaopai
filter[channel_type_code][in][12]:vtt_meipai
filter[channel_type_code][in][13]:vtt_rrtv
filter[channel_type_code][in][14]:vtt_sohutv
filter[channel_type_code][in][15]:vtt_sohu
filter[channel_type_code][in][16]:vtt_acfun
filter[channel_type_code][in][17]:vtt_yinyuetai
filter[channel_type_code][in][18]:vtt_neteasemusic
filter[channel_type_code][in][19]:vtt_cashtoutiao
filter[channel_type_code][in][20]:vtt_dianping
filter[channel_type_code][in][21]:vtt_weibo
filter[channel_type_code][in][22]:vtt_sina
filter[channel_type_code][in][23]:vtt_iqiyi
filter[channel_type_code][in][24]:vtt_toutiao_pro
filter[channel_type_code][in][25]:vtt_bilibili
filter[channel_type_code][in][26]:vtt_netease
filter[channel_type_code][in][27]:vtt_sogou
3、总计 28 个请求参数，删减为 14 个。响应 200。如图2
4、查看容器中的 Nginx 日志，确定接口响应 502 时候，实际是响应 200 的。如图3
{"environment-info":{"pod-id":"api-7cc8cc4c9c-hx89x","namespace":"ccp","pod-ip":"10.42.4.155","pod-hostip":"192.168.3.14"},"request":{"headers":{"referer":"-","host":"api.ccp","x-request-id":"156f0a80cc88c1ee0bb79b1f06d777f1","x-forwarded-for":"101.207.139.251, 10.42.0.231","user-agent":"PostmanRuntime/7.28.4"},"method":"GET","uri":"/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&filter[channel_type_code][in][19]=vtt_cashtoutiao&filter[channel_type_code][in][20]=vtt_dianping&filter[channel_type_code][in][21]=vtt_weibo&filter[channel_type_code][in][22]=vtt_sina&filter[channel_type_code][in][23]=vtt_iqiyi&filter[channel_type_code][in][24]=vtt_toutiao_pro&filter[channel_type_code][in][25]=vtt_bilibili&filter[channel_type_code][in][26]=vtt_netease&filter[channel_type_code][in][27]=vtt_sogou&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753","url":"http://api.ccp/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&filter[channel_type_code][in][19]=vtt_cashtoutiao&filter[channel_type_code][in][20]=vtt_dianping&filter[channel_type_code][in][21]=vtt_weibo&filter[channel_type_code][in][22]=vtt_sina&filter[channel_type_code][in][23]=vtt_iqiyi&filter[channel_type_code][in][24]=vtt_toutiao_pro&filter[channel_type_code][in][25]=vtt_bilibili&filter[channel_type_code][in][26]=vtt_netease&filter[channel_type_code][in][27]=vtt_sogou&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753","@timestamp":"2021-09-30T13:28:24+08:00","upstreamaddr":"127.0.0.1:9000","response":{"responsetime":"0.430","upstream-response-time":"0.430"},"size":"0","status":"200"},"module-name":"default_ccp_api"}
5、决定在另外一台容器中调用此接口，跳过 Kong 网关。报错：curl: (3) [globbing] error: bad range specification after pos 60。如图4
curl "http://api.ccp:82/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&filter[channel_type_code][in][19]=vtt_cashtoutiao&filter[channel_type_code][in][20]=vtt_dianping&filter[channel_type_code][in][21]=vtt_weibo&filter[channel_type_code][in][22]=vtt_sina&filter[channel_type_code][in][23]=vtt_iqiyi&filter[channel_type_code][in][24]=vtt_toutiao_pro&filter[channel_type_code][in][25]=vtt_bilibili&filter[channel_type_code][in][26]=vtt_netease&filter[channel_type_code][in][27]=vtt_sogou&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753"
6、将 [ 与 ] 前面添加 \，最终请求，响应成功。如图5
[root@api-console-migrate-6fc4566467-qbfch /]# curl "http://api.ccp:82/v1/task-group-channel-app-sources?filter\[group_id\]=6c8b55e7387da4799772ddb389f06753&filter\[channel_type_code\]\[in\]\[0\]=vtt_douyin&filter\[channel_type_code\]\[in\]\[1\]=vtt_douyin_pro&filter\[channel_type_code\]\[in\]\[2\]=vtt_kuaishou&filter\[channel_type_code\]\[in\]\[3\]=vtt_kuaishou_pro&filter\[channel_type_code\]\[in\]\[4\]=vtt_baijia&filter\[channel_type_code\]\[in\]\[5\]=vtt_baijia_pro&filter\[channel_type_code\]\[in\]\[6\]=vtt_dayu&filter\[channel_type_code\]\[in\]\[7\]=vtt_dayu_pro&filter\[channel_type_code\]\[in\]\[8\]=vtt_qq&filter\[channel_type_code\]\[in\]\[9\]=vtt_yidian&filter\[channel_type_code\]\[in\]\[10\]=vtt_qutoutiao&filter\[channel_type_code\]\[in\]\[11\]=vtt_miaopai&filter\[channel_type_code\]\[in\]\[12\]=vtt_meipai&filter\[channel_type_code\]\[in\]\[13\]=vtt_rrtv&filter\[channel_type_code\]\[in\]\[14\]=vtt_sohutv&filter\[channel_type_code\]\[in\]\[15\]=vtt_sohu&filter\[channel_type_code\]\[in\]\[16\]=vtt_acfun&filter\[channel_type_code\]\[in\]\[17\]=vtt_yinyuetai&filter\[channel_type_code\]\[in\]\[18\]=vtt_neteasemusic&filter\[channel_type_code\]\[in\]\[19\]=vtt_cashtoutiao&filter\[channel_type_code\]\[in\]\[20\]=vtt_dianping&filter\[channel_type_code\]\[in\]\[21\]=vtt_weibo&filter\[channel_type_code\]\[in\]\[22\]=vtt_sina&filter\[channel_type_code\]\[in\]\[23\]=vtt_iqiyi&filter\[channel_type_code\]\[in\]\[24\]=vtt_toutiao_pro&filter\[channel_type_code\]\[in\]\[25\]=vtt_bilibili&filter\[channel_type_code\]\[in\]\[26\]=vtt_netease&filter\[channel_type_code\]\[in\]\[27\]=vtt_sogou&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753"
{"code":10000,"message":"获取任务组的渠道的应用的来源的树形列表成功","data":{"items":[{"channel_code":"douyin","channel_name":"抖音","channel_type_code":"vtt_douyin_pro","channel_type_name":"视频兔兔的抖音PRO应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"60e74fd01f6711ecaded82f5728d7d34","channel_code":"douyin","channel_type_code":"vtt_douyin_pro","name":"小燕子","avatar":"https://p3.douyinpic.com/aweme/1080x1080/31a3d00061fd573c41210.jpeg?from=4010531038","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632728941,"is_pub_able":1,"is_pub_message":"","channel_name":"抖音","channel_type_name":"视频兔兔的抖音PRO应用","channel_app_name":"小燕子"}]},{"channel_code":"kuaishou","channel_name":"快手","channel_type_code":"vtt_kuaishou_pro","channel_type_name":"视频兔兔的快手PRO应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"4be7fa9e1f6711ecb02ca571b56d3826","channel_code":"kuaishou","channel_type_code":"vtt_kuaishou_pro","name":"User_1611141497927","avatar":"http://head-img.videototo.com/new_100009445_kuaishoupro_100025305","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632728906,"is_pub_able":1,"is_pub_message":"","channel_name":"快手","channel_type_name":"视频兔兔的快手PRO应用","channel_app_name":"User_1611141497927"}]},{"channel_code":"toutiao","channel_name":"头条号","channel_type_code":"vtt_toutiao_pro","channel_type_name":"视频兔兔的头条号PRO应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"9af35d8a1f6311ecb6b115ad3c194da2","channel_code":"toutiao","channel_type_code":"vtt_toutiao_pro","name":"编辑器验证","avatar":"https://p3-passport.byteacctimg.com/img/user-avatar/2x_21863502d9f118168ad71160d7070b7b~300x300.image","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632727321,"is_pub_able":1,"is_pub_message":"","channel_name":"头条号","channel_type_name":"视频兔兔的头条号PRO应用","channel_app_name":"编辑器验证"}]},{"channel_code":"yidian","channel_name":"一点号","channel_type_code":"vtt_yidian","channel_type_name":"视频兔兔的一点号应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"f0b531e41f4f11eca4df8bbcc22e30e6","channel_code":"yidian","channel_type_code":"vtt_yidian","name":"打工人1号","avatar":"http://head-img.videototo.com/Fpo_0phXgaUEMV5rxcB6LDw-bxb2","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632718878,"is_pub_able":1,"is_pub_message":"","channel_name":"一点号","channel_type_name":"视频兔兔的一点号应用","channel_app_name":"打工人1号"}]},{"channel_code":"bilibili","channel_name":"哔哩哔哩","channel_type_code":"vtt_bilibili","channel_type_name":"视频兔兔的哔哩哔哩应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"202cf6cc1f4711ecacc51ebe835c0f9a","channel_code":"bilibili","channel_type_code":"vtt_bilibili","name":"小燕子_bili","avatar":"http://head-img.videototo.com/FgMEsVrcqD5DidOIkiGgZNHQAbYf","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632715089,"is_pub_able":1,"is_pub_message":"","channel_name":"哔哩哔哩","channel_type_name":"视频兔兔的哔哩哔哩应用","channel_app_name":"小燕子_bili"}]},{"channel_code":"dayu","channel_name":"大鱼号","channel_type_code":"vtt_dayu_pro","channel_type_name":"视频兔兔的大鱼号PRO应用","channel_app_items":[{"group_id":"6c8b55e7387da4799772ddb389f06753","group_name":"省宣传部","uuid":"5e7fd6be1f4311ec92a5417c9aac2b41","channel_code":"dayu","channel_type_code":"vtt_dayu_pro","name":"快乐萌萌","avatar":"http://head-img.videototo.com/Fq5BSc10S9rvn4doFQ--JU8hAeZL","fans_count":0,"source":"scms","source_uuid":"b7498f517f48cab91408685674cabbac","source_product_id":"","source_user_token":"","permission":2,"refreshed_at":"0","status":1,"created_at":1632713490,"is_pub_able":1,"is_pub_message":"","channel_name":"大鱼号","channel_type_name":"视频兔兔的大鱼号PRO应用","channel_app_name":"快乐萌萌"}]}],"_links":{"self":{"href":"http://api.ccp:82/v1/task-group-channel-app-sources?filter%5Bgroup_id%5D=6c8b55e7387da4799772ddb389f06753&filter%5Bchannel_type_code%5D%5Bin%5D%5B0%5D=vtt_douyin&filter%5Bchannel_type_code%5D%5Bin%5D%5B1%5D=vtt_douyin_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B2%5D=vtt_kuaishou&filter%5Bchannel_type_code%5D%5Bin%5D%5B3%5D=vtt_kuaishou_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B4%5D=vtt_baijia&filter%5Bchannel_type_code%5D%5Bin%5D%5B5%5D=vtt_baijia_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B6%5D=vtt_dayu&filter%5Bchannel_type_code%5D%5Bin%5D%5B7%5D=vtt_dayu_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B8%5D=vtt_qq&filter%5Bchannel_type_code%5D%5Bin%5D%5B9%5D=vtt_yidian&filter%5Bchannel_type_code%5D%5Bin%5D%5B10%5D=vtt_qutoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B11%5D=vtt_miaopai&filter%5Bchannel_type_code%5D%5Bin%5D%5B12%5D=vtt_meipai&filter%5Bchannel_type_code%5D%5Bin%5D%5B13%5D=vtt_rrtv&filter%5Bchannel_type_code%5D%5Bin%5D%5B14%5D=vtt_sohutv&filter%5Bchannel_type_code%5D%5Bin%5D%5B15%5D=vtt_sohu&filter%5Bchannel_type_code%5D%5Bin%5D%5B16%5D=vtt_acfun&filter%5Bchannel_type_code%5D%5Bin%5D%5B17%5D=vtt_yinyuetai&filter%5Bchannel_type_code%5D%5Bin%5D%5B18%5D=vtt_neteasemusic&filter%5Bchannel_type_code%5D%5Bin%5D%5B19%5D=vtt_cashtoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B20%5D=vtt_dianping&filter%5Bchannel_type_code%5D%5Bin%5D%5B21%5D=vtt_weibo&filter%5Bchannel_type_code%5D%5Bin%5D%5B22%5D=vtt_sina&filter%5Bchannel_type_code%5D%5Bin%5D%5B23%5D=vtt_iqiyi&filter%5Bchannel_type_code%5D%5Bin%5D%5B24%5D=vtt_toutiao_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B25%5D=vtt_bilibili&filter%5Bchannel_type_code%5D%5Bin%5D%5B26%5D=vtt_netease&filter%5Bchannel_type_code%5D%5Bin%5D%5B27%5D=vtt_sogou&per-page=6&group_id=6c8b55e7387da4799772ddb389f06753&page=1"},"first":{"href":"http://api.ccp:82/v1/task-group-channel-app-sources?filter%5Bgroup_id%5D=6c8b55e7387da4799772ddb389f06753&filter%5Bchannel_type_code%5D%5Bin%5D%5B0%5D=vtt_douyin&filter%5Bchannel_type_code%5D%5Bin%5D%5B1%5D=vtt_douyin_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B2%5D=vtt_kuaishou&filter%5Bchannel_type_code%5D%5Bin%5D%5B3%5D=vtt_kuaishou_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B4%5D=vtt_baijia&filter%5Bchannel_type_code%5D%5Bin%5D%5B5%5D=vtt_baijia_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B6%5D=vtt_dayu&filter%5Bchannel_type_code%5D%5Bin%5D%5B7%5D=vtt_dayu_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B8%5D=vtt_qq&filter%5Bchannel_type_code%5D%5Bin%5D%5B9%5D=vtt_yidian&filter%5Bchannel_type_code%5D%5Bin%5D%5B10%5D=vtt_qutoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B11%5D=vtt_miaopai&filter%5Bchannel_type_code%5D%5Bin%5D%5B12%5D=vtt_meipai&filter%5Bchannel_type_code%5D%5Bin%5D%5B13%5D=vtt_rrtv&filter%5Bchannel_type_code%5D%5Bin%5D%5B14%5D=vtt_sohutv&filter%5Bchannel_type_code%5D%5Bin%5D%5B15%5D=vtt_sohu&filter%5Bchannel_type_code%5D%5Bin%5D%5B16%5D=vtt_acfun&filter%5Bchannel_type_code%5D%5Bin%5D%5B17%5D=vtt_yinyuetai&filter%5Bchannel_type_code%5D%5Bin%5D%5B18%5D=vtt_neteasemusic&filter%5Bchannel_type_code%5D%5Bin%5D%5B19%5D=vtt_cashtoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B20%5D=vtt_dianping&filter%5Bchannel_type_code%5D%5Bin%5D%5B21%5D=vtt_weibo&filter%5Bchannel_type_code%5D%5Bin%5D%5B22%5D=vtt_sina&filter%5Bchannel_type_code%5D%5Bin%5D%5B23%5D=vtt_iqiyi&filter%5Bchannel_type_code%5D%5Bin%5D%5B24%5D=vtt_toutiao_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B25%5D=vtt_bilibili&filter%5Bchannel_type_code%5D%5Bin%5D%5B26%5D=vtt_netease&filter%5Bchannel_type_code%5D%5Bin%5D%5B27%5D=vtt_sogou&per-page=6&group_id=6c8b55e7387da4799772ddb389f06753&page=1"},"last":{"href":"http://api.ccp:82/v1/task-group-channel-app-sources?filter%5Bgroup_id%5D=6c8b55e7387da4799772ddb389f06753&filter%5Bchannel_type_code%5D%5Bin%5D%5B0%5D=vtt_douyin&filter%5Bchannel_type_code%5D%5Bin%5D%5B1%5D=vtt_douyin_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B2%5D=vtt_kuaishou&filter%5Bchannel_type_code%5D%5Bin%5D%5B3%5D=vtt_kuaishou_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B4%5D=vtt_baijia&filter%5Bchannel_type_code%5D%5Bin%5D%5B5%5D=vtt_baijia_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B6%5D=vtt_dayu&filter%5Bchannel_type_code%5D%5Bin%5D%5B7%5D=vtt_dayu_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B8%5D=vtt_qq&filter%5Bchannel_type_code%5D%5Bin%5D%5B9%5D=vtt_yidian&filter%5Bchannel_type_code%5D%5Bin%5D%5B10%5D=vtt_qutoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B11%5D=vtt_miaopai&filter%5Bchannel_type_code%5D%5Bin%5D%5B12%5D=vtt_meipai&filter%5Bchannel_type_code%5D%5Bin%5D%5B13%5D=vtt_rrtv&filter%5Bchannel_type_code%5D%5Bin%5D%5B14%5D=vtt_sohutv&filter%5Bchannel_type_code%5D%5Bin%5D%5B15%5D=vtt_sohu&filter%5Bchannel_type_code%5D%5Bin%5D%5B16%5D=vtt_acfun&filter%5Bchannel_type_code%5D%5Bin%5D%5B17%5D=vtt_yinyuetai&filter%5Bchannel_type_code%5D%5Bin%5D%5B18%5D=vtt_neteasemusic&filter%5Bchannel_type_code%5D%5Bin%5D%5B19%5D=vtt_cashtoutiao&filter%5Bchannel_type_code%5D%5Bin%5D%5B20%5D=vtt_dianping&filter%5Bchannel_type_code%5D%5Bin%5D%5B21%5D=vtt_weibo&filter%5Bchannel_type_code%5D%5Bin%5D%5B22%5D=vtt_sina&filter%5Bchannel_type_code%5D%5Bin%5D%5B23%5D=vtt_iqiyi&filter%5Bchannel_type_code%5D%5Bin%5D%5B24%5D=vtt_toutiao_pro&filter%5Bchannel_type_code%5D%5Bin%5D%5B25%5D=vtt_bilibili&filter%5Bchannel_type_code%5D%5Bin%5D%5B26%5D=vtt_netease&filter%5Bchannel_type_code%5D%5Bin%5D%5B27%5D=vtt_sogou&per-page=6&group_id=6c8b55e7387da4799772ddb389f06753&page=1"}},"_meta":{"totalCount":6,"pageCount":1,"currentPage":1,"perPage":6}}}[root@api-console-migrate-6fc4566467-qbfch /]#
7、一直减少至 18 个参数后，就能够正常响应 200。总计为 918 个字符数。虽然官方 RFC 2616 没有指定限制，但许多安全协议和建议都规定服务器上的 maxQueryStrings 应设置为最大字符数限制 1024。而整个 URL，包括查询字符串，应设置为最大 2048 。
{{host_info}}{{base_url}}/v{{module}}/task-group-channel-app-sources?filter[group_id]={{group_id}}&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&per-page=100&group_id={{group_id}}
8、查看 Kong 的 tcp log。upstream sent too big header while reading response header from upstream。如图6
2021/09/30 09:10:12 [error] 65#0: *8025344 upstream sent too big header while reading response header from upstream, client: 10.42.0.231, server: kong, request: "GET /ccpapi/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753 HTTP/1.1", upstream: "http://10.103.175.193:82/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][ 15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753", host: "api.webtest.chinamcloud.cn" 10.42.0.231 - - [30/Sep/2021:09:10:12 +0000] "GET /ccpapi/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753 HTTP/1.1" 502 75 "-" "PostmanRuntime/7.28.4"
9、在 kong 容器中添加环境变量。KONG_NGINX_PROXY_PROXY_BUFFER_SIZE、KONG_NGINX_PROXY_PROXY_BUFFERS。如图7
KONG_NGINX_PROXY_PROXY_BUFFER_SIZE=160k KONG_NGINX_PROXY_PROXY_BUFFERS=64 160k
10、再次请求，仍然响应 502，只不过响应体发生了变化，响应 HTML 。如图8
<html> <head> <title>502 Bad Gateway</title> </head> <body> <center> <h1>502 Bad Gateway</h1> </center> <hr> <center>nginx/1.17.10</center> </body> </html>
11、查看 Kong 的 tcp log。未再报错。如图9
10.42.0.231 - - [30/Sep/2021:10:34:36 +0000] "GET /ccpapi/v1/task-group-channel-app-sources?filter[group_id]=6c8b55e7387da4799772ddb389f06753&filter[channel_type_code][in][0]=vtt_douyin&filter[channel_type_code][in][1]=vtt_douyin_pro&filter[channel_type_code][in][2]=vtt_kuaishou&filter[channel_type_code][in][3]=vtt_kuaishou_pro&filter[channel_type_code][in][4]=vtt_baijia&filter[channel_type_code][in][5]=vtt_baijia_pro&filter[channel_type_code][in][6]=vtt_dayu&filter[channel_type_code][in][7]=vtt_dayu_pro&filter[channel_type_code][in][8]=vtt_qq&filter[channel_type_code][in][9]=vtt_yidian&filter[channel_type_code][in][10]=vtt_qutoutiao&filter[channel_type_code][in][11]=vtt_miaopai&filter[channel_type_code][in][12]=vtt_meipai&filter[channel_type_code][in][13]=vtt_rrtv&filter[channel_type_code][in][14]=vtt_sohutv&filter[channel_type_code][in][15]=vtt_sohu&filter[channel_type_code][in][16]=vtt_acfun&filter[channel_type_code][in][17]=vtt_yinyuetai&filter[channel_type_code][in][18]=vtt_neteasemusic&per-page=100&group_id=6c8b55e7387da4799772ddb389f06753 HTTP/1.1" 200 0 "-" "PostmanRuntime/7.28.4"
12、参考网址：https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/#proxy-buffers-number 。在 Rancher 中，查找到 kong 容器所对应的负载均衡，编辑 YAML 文件。添加 2 行 nginx.ingress 相关配置项。如图10
nginx.ingress.kubernetes.io/proxy-buffer-size: 160k
nginx.ingress.kubernetes.io/proxy-buffers-number: "64"
13、再次请求，响应 200，符合预期。如图11
