Hi Zihao,

Thanks for the proposal on History Server. The current eager loading mode of 
History Server indeed causes slow startup and long waiting for large/complex 
jobs.
I believe introducing lazy loading can effectively alleviate this issue. 
Looking forward to your implementation. Best regards,
Zuo Wei

----- Original Message -----
From: "zihao chen" <[email protected]>
To: [email protected]
Sent: Sat, 9 May 2026 11:43:22 +0800
Subject: [DISCUSS] FLIP-XXX: Introduce Lazy Loading for HistoryServer

Hi all,

I’d like to start a discussion on FLIP-XXX:
*Introduce Lazy Loading for HistoryServer*.

This FLIP proposes improving the HistoryServer
to address *slow startup*, *delayed job visibility*
when handling large numbers of archived jobs.

[Proposal]
*Lazy loading mode* for on-demand job archive fetching

[Compatibility]
Full backward compatibility (EAGER as default)

The detailed design is described in the
FLIP document:

https://docs.google.com/document/d/11YOivaOMOAoiG-zc6jjLoiUQqAwKoKmYgsgPtuZYo88/edit?usp=sharing

This FLIP is split from the earlier discussion [1].

Looking forward to your feedback.

[1] https://lists.apache.org/thread/6thlq9c5twyvzmcw7q24nm4q0rcbz5qp


Best regards,

Zihao Chen

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