How to realize distributed websocket?

how to implement distributed websock push in a cluster environment? Ws"s session cannot be persisted, so it can only be used as a stand-alone in map. Is there any elegant solution besides nginx"s ip_hash?

Mar.19,2021

Communication between Websocket clusters and between Websocket nodes and Restful API nodes through Pub/Sub of Redis

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-64f5-1b3f1eb-2c475.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3f1eb-2c475.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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