ChatGPT prompt for Fault Localization in Microservices (Sock Shop)

prompt.txt

あなたはマイクロサービスアプリケーションSock ShopのSREです。
Sock Shopはcarts,catalogue,front-end,orders,user,payment,shippingの7個のマイクロサービスにより構成されています。

以下は、Sock Shopのネットワーク通信の依存関係をmarmaid記法で表現したものです。

flowchart LR
front[front-end]
front --> orders[orders]
subgraph Orders
orders --> ordersdb[orders-db]
end
front --> carts[carts]
subgraph Carts
carts --> cartsdb[carts-db]
end
front --> user[user]
subgraph User
user[user] --> userdb[user-db]
end
front --> cata[catalogue]
subgraph Catalogue
cata --> catadb[catalogue-db]
end
orders --> carts
orders --> user
orders --> pay[payment]
orders --> ship[shipping]


以下のcsvは、front-endサービスのlatencyが上昇したときの各マイクロサービスのlatency、throughput、errorsの各メトリクスの時系列データを示しています。
上述のネットワーク依存関係を基に、これらの時系列データを解析し、どのメトリクスが原因であるかを調査してください。

,s-carts_throughput,s-carts_latency,s-catalogue_throughput,s-catalogue_latency,s-front-end_throughput,s-front-end_errors,s-front-end_latency,s-orders_throughput,s-orders_latency,s-payment_throughput,s-payment_latency,s-shipping_throughput,s-shipping_latency,s-user_throughput,s-user_latency
0,138.6,0.0052,69.9333,0.0045,307.7111,4.8,0.0335,31.5556,0.0224,35.2667,0.0003,31.2667,0.0011,242.9778,0.004
1,138.6444,0.0053,70.1111,0.0045,307.9111,4.7111,0.0335,31.2,0.0216,35.3556,0.0003,31.2667,0.0011,243.0889,0.004
2,137.9556,0.0053,69.8667,0.0044,307.5333,4.8444,0.0337,31.4667,0.0222,35.3333,0.0004,30.9333,0.0011,242.9778,0.0041
3,137.9111,0.0054,69.6667,0.0044,306.3556,4.0889,0.0344,31.2889,0.0218,35.2,0.0004,31.6444,0.0011,242.2444,0.0041
4,137.2889,0.0055,69.5556,0.0045,304.7556,5.5111,0.0347,30.3556,0.0225,35.1333,0.0004,30.7111,0.0011,241.6222,0.0043
5,138.0,0.0056,69.6222,0.0045,304.4,5.8444,0.0347,30.2,0.0222,35.1333,0.0004,30.2444,0.0012,241.5111,0.0042
6,137.3333,0.0059,69.4889,0.0045,304.0667,6.4667,0.0346,29.8444,0.0233,35.1556,0.0004,29.8222,0.0012,241.4889,0.0041
7,138.2,0.0061,69.8667,0.0046,306.2444,5.3333,0.0343,30.8444,0.0237,35.2222,0.0003,30.7111,0.0012,242.4444,0.004
8,137.0889,0.0062,69.0667,0.0047,305.3111,5.7111,0.0345,30.0444,0.0253,35.2667,0.0004,30.4,0.0012,242.0444,0.0042
9,137.1556,0.0057,69.6,0.0048,304.9333,5.2889,0.0349,30.8222,0.0251,35.2,0.0004,30.8889,0.0013,241.5556,0.0042
10,134.0,0.0076,67.7556,0.005,298.5556,5.3111,0.0374,30.0889,0.0271,34.5333,0.0004,30.2444,0.0012,235.7333,0.0043
11,135.2222,0.0075,68.8,0.005,298.8889,5.2,0.0374,30.6889,0.0252,34.4222,0.0004,30.2667,0.0011,237.2222,0.0041
12,134.1111,0.0076,67.7778,0.0049,298.5778,5.3333,0.0378,29.7556,0.0274,34.4667,0.0004,30.0444,0.0014,236.4667,0.0042
13,137.0,0.0054,69.2889,0.0046,303.0,5.4667,0.0356,30.3556,0.0253,34.8222,0.0004,29.9778,0.0015,240.7111,0.0041
14,135.4444,0.0055,68.4,0.0046,301.5111,4.6222,0.0365,30.5111,0.0251,34.6889,0.0004,30.8,0.0014,237.9556,0.0041
15,137.3556,0.0054,69.4444,0.0046,303.8222,4.3111,0.0355,31.3333,0.0235,34.8444,0.0004,31.0444,0.0011,240.3111,0.0041
16,137.0444,0.0055,69.3111,0.0046,305.5556,4.6,0.0347,30.9778,0.0244,35.0667,0.0004,31.5111,0.0013,241.5333,0.0041
17,138.5111,0.0053,70.2444,0.0046,307.0222,5.4222,0.0339,31.1111,0.0245,35.3333,0.0004,30.7111,0.0013,242.7333,0.0043
18,137.9778,0.0053,69.9556,0.0046,306.0889,6.3111,0.0339,30.0889,0.0261,35.3556,0.0004,30.4222,0.0016,242.9778,0.0042
19,137.8667,0.0054,69.8667,0.0045,305.2444,6.0889,0.0343,30.4,0.0257,35.2222,0.0004,30.0889,0.0015,241.9111,0.0043
20,137.4667,0.0054,69.8,0.0045,306.0667,5.6889,0.0341,30.4444,0.0259,35.3333,0.0004,30.8444,0.0015,242.7556,0.0042
21,137.3556,0.0055,69.3778,0.0045,305.1333,5.3778,0.0344,30.9111,0.0247,35.1556,0.0004,30.4444,0.0013,241.5111,0.0043
22,137.2222,0.0056,69.6222,0.0047,304.6222,5.2889,0.035,30.9556,0.0241,35.1111,0.0004,30.9556,0.0012,241.8667,0.0042
23,137.2889,0.0058,69.7111,0.0046,304.8222,5.3778,0.0349,30.6222,0.0252,35.1333,0.0004,30.6444,0.0014,241.9111,0.0043
24,138.4222,0.0057,70.2667,0.0045,307.7778,5.5111,0.0335,30.5333,0.0241,35.4444,0.0004,30.9333,0.0013,243.4222,0.0042
25,138.3778,0.0056,70.1778,0.0044,307.0,5.4444,0.0335,31.1333,0.0226,35.4889,0.0004,30.8222,0.0013,243.4,0.0042
26,136.7333,0.0057,69.1333,0.0043,304.3778,5.0444,0.0351,30.7778,0.0229,35.0889,0.0004,30.9333,0.0012,240.7778,0.0042
27,135.2444,0.0057,68.3333,0.0044,300.3556,4.8667,0.0366,31.1556,0.0234,34.5778,0.0004,30.8222,0.0013,237.7111,0.0042
28,135.4667,0.0057,68.4889,0.0044,301.4889,5.0222,0.0363,30.4444,0.0247,34.6222,0.0004,30.7111,0.0013,238.8,0.0042
29,133.4667,0.0058,67.5556,0.0046,297.1778,5.0,0.0382,30.4444,0.0277,34.2,0.0004,30.4,0.0019,234.7333,0.0043
30,133.6444,0.0058,67.7111,0.0047,297.3556,4.2667,0.0385,30.6222,0.027,34.1556,0.0004,30.5111,0.0019,235.5111,0.0044
31,133.8,0.0058,67.9333,0.0047,298.5778,3.8222,0.0384,31.3333,0.0269,34.3556,0.0004,31.1556,0.0019,235.0,0.0043
32,137.0222,0.0055,69.0222,0.0044,303.4222,4.6889,0.0352,30.6,0.0248,34.8222,0.0004,31.0,0.0013,240.0889,0.0042
33,137.8889,0.0054,69.5333,0.0045,305.9333,5.0222,0.0345,30.7111,0.0249,35.2667,0.0004,30.8222,0.0012,241.9111,0.0042
34,136.9778,0.0059,68.9778,0.0045,302.5111,5.3333,0.0356,29.8889,0.0249,34.8667,0.0004,30.2444,0.0012,239.9111,0.0043
35,136.4889,0.0058,69.0889,0.0047,303.0444,4.9111,0.0359,30.9111,0.0236,34.9111,0.0004,30.4667,0.0012,239.5556,0.0042
36,135.7778,0.0059,69.0,0.0048,302.4667,4.9778,0.036,30.8,0.0236,34.8222,0.0003,30.7333,0.0011,238.8889,0.0043
37,137.7111,0.0054,69.6667,0.0049,305.0667,4.9333,0.0348,31.4667,0.0245,35.0889,0.0004,30.7333,0.0013,241.6222,0.0042
38,138.2222,0.0054,70.0444,0.0047,306.1333,4.8222,0.0343,31.3111,0.0242,35.1778,0.0003,31.0889,0.0013,242.3778,0.0042
39,138.7778,0.0053,70.1556,0.0046,307.8,4.6889,0.0336,31.2889,0.0236,35.4,0.0003,31.4667,0.0013,243.4889,0.0041
40,138.0889,0.0052,69.8444,0.0046,307.2222,5.0,0.0337,30.7333,0.0229,35.3778,0.0004,31.2222,0.0013,243.0,0.0041
41,138.4,0.0052,69.7778,0.0048,306.9333,5.2889,0.0338,30.7778,0.0234,35.3333,0.0004,30.9333,0.0014,243.1333,0.0041
42,137.2444,0.0053,69.3778,0.0048,305.2444,5.2889,0.0345,30.7778,0.0236,35.1111,0.0003,30.5778,0.0015,241.0,0.0042
43,136.2,0.0054,68.6222,0.0047,302.9778,4.4667,0.0359,30.6222,0.0233,34.8444,0.0003,30.7556,0.0014,238.8667,0.0044
44,135.7111,0.0054,68.6444,0.0047,302.1333,4.5556,0.0363,30.7556,0.0223,34.8,0.0003,30.8667,0.0013,239.0889,0.0043
45,136.4889,0.0054,69.0667,0.0046,303.0667,4.6444,0.0359,30.7111,0.0226,34.9111,0.0003,30.8444,0.0012,240.1111,0.0042
46,137.1333,0.0055,69.3778,0.0048,303.7333,5.3111,0.0356,30.4667,0.025,34.9333,0.0004,30.5333,0.0013,240.6444,0.0042
47,137.9111,0.0055,69.6667,0.0046,304.8667,4.7556,0.035,31.3333,0.0245,35.0667,0.0004,30.7333,0.0012,241.0889,0.0041
48,137.7556,0.0055,69.4222,0.0046,306.4444,4.1556,0.0344,31.6444,0.0243,35.0889,0.0004,31.7111,0.0012,241.2889,0.0041
49,136.9778,0.0053,69.1111,0.0046,305.0222,3.6,0.035,32.3111,0.0226,34.9556,0.0004,32.1778,0.0013,240.4889,0.004
50,136.2222,0.0054,69.0222,0.0047,304.2222,3.6667,0.0356,31.7778,0.0242,34.7778,0.0004,32.1556,0.0013,239.9111,0.0041
51,136.4444,0.0055,69.0,0.0046,302.4222,4.7778,0.036,31.0444,0.0237,34.7778,0.0004,30.6444,0.0013,239.2,0.004
52,137.4667,0.0055,69.6889,0.0045,306.8889,4.3333,0.0345,31.9333,0.025,35.2667,0.0004,31.7111,0.0014,242.5556,0.004
53,137.8667,0.0054,69.6889,0.0045,306.5111,4.2444,0.0344,31.6444,0.0231,35.2889,0.0004,31.5556,0.0014,241.5778,0.0041
54,137.4,0.0054,69.4222,0.0047,306.5556,3.6889,0.0347,31.9333,0.0237,35.1111,0.0004,32.3111,0.0014,241.4889,0.0042
55,137.2444,0.0058,69.5111,0.0046,303.9778,4.9556,0.0351,30.5556,0.0222,35.0,0.0004,30.9556,0.0013,240.6444,0.0042
56,137.4444,0.0056,69.4444,0.0046,305.6222,5.2667,0.0344,30.8222,0.0229,35.1556,0.0004,30.8444,0.0013,242.0889,0.0042
57,137.7778,0.0056,69.9333,0.0044,305.8222,5.5111,0.0342,31.0667,0.0232,35.1778,0.0004,30.7778,0.0012,242.4222,0.0042
58,137.7778,0.0051,69.9556,0.0046,306.6667,5.3111,0.0338,31.1333,0.0221,35.2667,0.0003,30.7333,0.001,242.3778,0.0041
59,137.8,0.0052,69.9333,0.0047,307.0667,5.1333,0.0339,31.3556,0.0213,35.3333,0.0004,31.3111,0.001,242.5778,0.0042
60,137.3111,0.0053,69.4222,0.0048,305.1556,5.0222,0.0346,30.8889,0.0235,35.2222,0.0004,31.1556,0.0012,241.8,0.0042
61,137.0444,0.0055,69.4444,0.0048,305.0667,5.2444,0.0349,30.7111,0.0241,35.2,0.0004,31.0222,0.0013,241.2444,0.0042
62,136.9333,0.0055,69.2444,0.0047,302.9111,5.1333,0.0358,30.3778,0.0236,34.9778,0.0004,30.3778,0.0013,240.5111,0.0042
63,137.6889,0.0055,69.8,0.0047,305.3778,5.4,0.0345,30.8667,0.0221,35.2222,0.0004,30.7333,0.0012,242.3333,0.0042
64,138.3556,0.0053,70.0222,0.0045,307.3778,4.6444,0.0338,32.0444,0.0215,35.3556,0.0003,31.6444,0.0011,243.2889,0.004
65,138.1333,0.0052,69.8889,0.0044,308.6,4.3333,0.0334,32.4444,0.0222,35.3111,0.0004,32.4,0.0011,242.7778,0.004
66,137.4667,0.0053,69.6667,0.0044,306.3333,4.3333,0.0346,31.7333,0.0228,35.1778,0.0004,32.0667,0.0011,241.9556,0.004
67,136.7556,0.0053,69.2889,0.0046,304.2667,4.7111,0.0353,30.8667,0.0225,34.8889,0.0004,31.1556,0.0011,240.6444,0.004
68,137.6222,0.0054,69.6444,0.0046,305.6889,5.0444,0.0345,31.0222,0.0232,35.2444,0.0004,30.9111,0.0011,241.8667,0.004
69,133.9111,0.0056,67.8444,0.005,300.0444,5.0667,0.0374,30.0,0.0254,34.5778,0.0004,30.0,0.0013,236.3556,0.0041
70,133.6,0.0059,67.2667,0.005,296.2667,4.3111,0.0391,30.9556,0.0255,34.1333,0.0004,30.3556,0.0013,234.1333,0.0042
71,133.5556,0.0059,67.0667,0.0049,296.3111,3.9778,0.0394,30.3556,0.0251,34.0667,0.0004,30.9556,0.0014,234.6444,0.0042
72,134.2889,0.0068,67.3778,0.0047,297.1556,4.5556,0.0388,30.2,0.0297,34.1778,0.0005,30.5333,0.0014,234.8444,0.0041
73,132.0444,0.0083,66.5778,0.0049,294.8444,5.6444,0.0395,28.7778,0.0394,34.0667,0.0006,29.7556,0.0016,233.6667,0.0043
74,129.5778,0.0091,65.7111,0.0053,287.3111,6.9333,0.0428,27.4667,0.0441,33.2444,0.0008,27.6667,0.0016,228.5333,0.0044
75,129.8667,0.0089,66.1333,0.0054,286.9111,7.2667,0.0428,27.2889,0.0422,33.3556,0.0008,27.6444,0.0015,229.4889,0.0044
76,130.6889,0.0082,66.2444,0.0056,288.0444,7.4889,0.0422,27.1333,0.0368,33.2889,0.0006,27.2222,0.0014,229.2444,0.0044
77,130.8444,0.0082,66.6667,0.0055,288.9556,7.4222,0.0418,27.7111,0.0379,33.7333,0.0006,27.4222,0.0014,230.8222,0.0043
78,131.7556,0.0085,66.8222,0.0056,291.4222,5.6889,0.0413,29.2444,0.0331,33.6889,0.0007,28.7111,0.0012,231.6444,0.0043
79,132.3778,0.0084,67.3111,0.0053,292.8444,5.4889,0.0408,29.5556,0.033,33.9556,0.0007,29.1333,0.0012,233.2222,0.0042
80,132.2889,0.0088,67.0,0.0051,294.4222,4.8667,0.0402,29.6889,0.0343,33.8222,0.0007,29.8222,0.0013,232.9333,0.0041
81,130.9333,0.0101,66.2222,0.0052,290.5111,5.6889,0.0415,28.9556,0.0364,33.5111,0.0006,28.9111,0.0013,230.1333,0.0042
82,130.7333,0.0101,66.1778,0.0053,288.9556,5.9111,0.0425,28.2889,0.0377,33.5111,0.0007,28.5111,0.0014,229.9111,0.0044
83,131.0889,0.0098,66.3556,0.0052,290.2889,6.1778,0.0413,28.5111,0.0363,33.6,0.0006,28.4889,0.0013,230.2,0.0043
84,132.6,0.0098,67.3556,0.0049,293.2222,6.6,0.0401,28.8222,0.0366,34.0444,0.0008,28.5111,0.0013,233.8889,0.0044
85,131.3111,0.0101,66.8222,0.0048,292.7333,6.1778,0.0402,28.8222,0.0388,33.7556,0.0007,29.2444,0.0013,232.6222,0.0043
86,130.6889,0.0102,66.6,0.0051,289.6444,6.7333,0.0418,28.2,0.0389,33.5556,0.0008,28.0444,0.0013,230.7111,0.0043
87,130.5333,0.0094,66.4222,0.0054,289.1556,7.0889,0.0417,28.0,0.0421,33.5333,0.0006,27.9333,0.0017,230.2,0.0042
88,131.4667,0.0093,66.9111,0.0056,291.2,6.9778,0.0409,28.1778,0.0412,33.8222,0.0006,28.1111,0.0021,231.4,0.0042
89,130.2667,0.0094,65.7778,0.0059,289.8222,6.7556,0.0412,27.9111,0.0401,33.5556,0.0006,28.4889,0.0021,229.6,0.0042

ChatGPT (mode: GPT-4)の応答。

front-endサービスのlatencyが上昇しているので、各マイクロサービスのlatency, throughput, errorsのメトリクスを調べ、原因を特定します。

まず、front-endサービスのエラーが増加しているかどうかを確認します。
データによると、front-endのエラーは時間とともに変動していますが、全体的に増加傾向にはないようです。

次に、front-endが依存しているマイクロサービス（orders, carts, user, catalogue）のlatencyを調べます。

s-carts_latency: 時間とともに増加傾向
s-catalogue_latency: 増加傾向がありますが、他のマイクロサービスに比べて影響は小さい
s-orders_latency: 増加傾向
s-user_latency: 増加傾向
これらの結果から、carts, orders, userのマイクロサービスのlatencyが増加していることがわかります。また、front-endがordersに依存しているため、ordersの他の依存サービス（payment, shipping）も調べます。

s-payment_latency: 一定のままで大きな変動はない
s-shipping_latency: 増加傾向がありますが、他のマイクロサービスに比べて影響は小さい
最後に、throughputについても確認しますが、特に目立った変動はありません。

以上の分析から、front-endサービスのlatency上昇の原因は、carts, orders, userマイクロサービスのlatency増加によるものと考えられます。特にcartsとordersのlatencyが顕著に増加しているため、これらのマイクロサービスに問題がある可能性が高いです。これらのマイクロサービスを最初に調査・最適化することで、front-endサービスのlatencyを改善できるでしょう。

carts podにCPU過負荷をあたえたときのデータセットなので、正解はcartsサービス。