Java front end xhr download response time is long

background: spring
Front end: xhr
I would like to ask you, my background interface uses streaming to write a file to download (read the file out and stream it back with response), and the front end uses xhr to download the file, and the interface can link and download normally. However, why does it take a long time for some computers to download pendding before download, some seconds start to download, test environment, local area network, server tomcat, browser Chrome, clear the cache, server default configuration

Mar.29,2021
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1b3c747-2c320.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3c747-2c320.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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