tarantool / tarantool/queue

Unnecessary session creation for connection that is not for queue

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Dominant language
Lua
Stars
244
Forks
56
PR merge metrics
No merged PRs in 30d

Description

The number of requests has increased significantly аfter installation of queue module.
I use tarantool for data cache and when the client disconnects, the queue creates a new session and immediately delete it. It is not necessary.

I researched this and got that: the queue have event connection.on_disconnect. It calls identify, which select session by connection id. It insert id in queue_session_ids and return session, which are deleted immediately on disconnect.

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Research direction

Start in queue/abstract/queue_session.lua at identify, queue_session_ids, and the on_disconnect handler. Trace how a disconnected connection is identified and whether a session is inserted before deletion. Done means non-queue connections no longer create and immediately remove sessions, while queue-session cleanup still works.

Written by the indexing model from the issue text.

Assessment

Tech stack
lua
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
48/100

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