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Nov 2, 2026Two Machines Are Running the Same Scheduled Job and Month-End Produces Two Reconciliation Statements—What Part Can a Distributed Lock Actually Block?In clustered scheduled jobs, duplicate execution and two month-end reconciliation statemen ...View details
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Nov 1, 2026Customer portal embeds our system in an iframe and users are bounced back to the login page after signing in: should we check cookies or the session first?After iframe embedding, users are still bounced back after a successful login. This is oft ...View details
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Oct 31, 2026Why do morning peak timeouts get worse after raising the connection pool limit from 20 to 50, and who is holding the connections?At morning peak, batch API timeouts and Connection is not available logs are commonly caus ...View details
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Oct 30, 2026After a phone confirmation, the PC login page is still spinning: should I check the polling interval or the QR code status first?When the PC login page is stuck at waiting, it is usually not that the polling interval is ...View details
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Oct 29, 2026Can Snowflake ID worker IDs be manually configured when scaling from two to six servers and order numbers occasionally collide?Duplicate order numbers are often not caused by a wrong Snowflake algorithm, but by manual ...View details
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Oct 28, 2026Operations changed “Pending Shipment” to “Awaiting Shipment” and the admin buttons all disappeared at once—who should own status copy?Operations changed one status label, and the admin buttons all disappeared. The root cause ...View details
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Oct 27, 2026Why does adding a column to the orders table stay stuck at waiting for table metadata lock: table size or a long-running transaction?When adding a column to an orders table gets stuck at waiting for table metadata lock, the ...View details
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Oct 26, 2026Why do Chinese characters turn into boxes on a client's phone when the PDF looks fine on my computer: missing font embedding or an unsupported reader?A PDF shows Chinese correctly on my computer, but the client sees boxes on mobile. The usu ...View details
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Oct 25, 2026Product price changed: detail page is updated but the campaign page still shows the old price—is deleting only the product key enough?After a product price change, the detail page is updated but the campaign page still shows ...View details
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Oct 24, 2026If the timeout cancellation job closes the order and restocks inventory right after the user enters the payment password, can the order still be recovered?It may not necessarily mismatch, but if the cancellation action only writes an uncondition ...View details
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Oct 23, 2026Intranet terminals are locked to old browsers and pages go blank—should we change the code or ask the client to replace the machines?Locked browser versions and blank pages on intranet terminals rarely justify a separate fr ...View details
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Oct 22, 2026Deleted logs but df still shows 100%—if the process isn't restarted, will the space never come back?Deleting log files but df still shows 100% is often not a wrong directory; a process may s ...View details
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Oct 21, 2026The backend hides the export button, but a regular account can still export everything by changing a request—is page-level permission enough?Not enough. Hiding the export button on the front end only affects the normal operation pa ...View details
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Oct 20, 2026Excel Import Shows Phone Numbers as 1.39E+10 and Dates as 45000—Is the File Corrupted?When phone numbers become 1.39E+10 and dates become 45000 after Excel import, the file is ...View details
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Oct 19, 2026Portrait photos look upright on the web but sideways in App list thumbnails—should I fix the frontend or the server first?Photos lying sideways after upload are usually not caused by a crooked camera, but by the ...View details
