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feature/keycloak-b6-key-rotation
keycloak-pattern/.playwright-mcp/console-2026-09-04T03-43-55-141Z.log
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DongHyeonkaandClaude Opus 5 dba0c3975c docs: A-6 — 200ms of network delay becomes 22 seconds of user latency 
Nine database round trips per login multiply the injected delay to 1.9 seconds, and connection pool queueing multiplies it again under twenty concurrent requests. The readiness probe joins the same queue and times out, so the node leaves the load balancer and pushes its load onto the one still standing.

Two injections missed first: the guest interface is enp1s0 rather than eth0, and a filter on it can never match a pod IP because flannel has already encapsulated the packet. The delay has to go on flannel.1, before encapsulation.

The predicted rise in optimistic lock conflicts did not happen, because logins insert new rows rather than contending for one. That belongs to B-3.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2026-09-04 13:18:10 +09:00

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[ 199ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 297ms] [WARNING] <meta name="apple-mobile-web-app-capable" content="yes"> is deprecated. Please include <meta name="mobile-web-app-capable" content="yes"> @ https://app2.hyeonworks.com/explore?schemaVersion=1&orgId=1&panes=%7B%22a%22%3A%7B%22datasource%22%3A%22PBFA97CFB590B2093%22%2C%22queries%22%3A%5B%7B%22refId%22%3A%22A%22%2C%22expr%22%3A%22vendor_cluster_size%22%2C%22range%22%3Atrue%2C%22instant%22%3Afalse%2C%22editorMode%22%3A%22code%22%2C%22legendFormat%22%3A%22%7B%7Bpod%7D%7D%22%2C%22datasource%22%3A%7B%22type%22%3A%22prometheus%22%2C%22uid%22%3A%22PBFA97CFB590B2093%22%7D%7D%5D%2C%22range%22%3A%7B%22from%22%3A%22now-25m%22%2C%22to%22%3A%22now%22%7D%7D%7D:0
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[ 1573121ms] [WARNING] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: WebSocket is closed before the connection is established. @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1584038ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
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[ 1743701ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
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[ 1820392ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1822445ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1839035ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1840162ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1847739ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1861419ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1880381ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1893315ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1911434ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1922701ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1933868ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: HTTP Authentication failed; no valid credentials available @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1944951ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1948001ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1952503ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1953320ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
[ 1955369ms] [ERROR] WebSocket connection to 'wss://app2.hyeonworks.com/api/live/ws' failed: Error during WebSocket handshake: Unexpected response code: 400 @ https://app2.hyeonworks.com/public/build/1518.a3f1f690c084a37f01c7.js:362
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