fix: memory issue when push large bentos

[xianml]

What does this PR address?

supporting limit max memory usage when pushing models

bentoml push facebook--opt-2.7b-service:905a4b602cda5c501f1b3a2650a4152680238254  --maxmemory 2

Test case 1: pushing bento google--flan-t5-large-service, model size 2.92 GiB

• no limit

1. time consumed: 3min 58s
2. memory usage: ~ 3GB

• maxmemory = 1

1. time consumed:4min 25s
2. memory usage: <1G

Test case 2: pushing bento google--flan-t5-large-service, model size 12.55 GiB

• maxmemory = 3

1. time consumed:4min 48s
2. memory usage: max ~ 4G

Fixes #(issue)

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[pep8speaks]

Hello @xianml! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! :beers:

Comment last updated at 2023-09-26 02:14:35 UTC

[jianshen92]

What are the bugs within the current implementation?

[xianml]

What are the bugs within the current implementation?

context in https://bentoml-team.slack.com/archives/C02QLC8RB5W/p1695088745009929

as a summary, currently it will take too much memory when do a bentoml push since it use io.BytesIO. So this fix is to use SpooledTemporaryFile instead to cap the memory usage

[sauyon]

Looks like unit tests are failing, maybe because of the requests change...?

Should we just use a SpooledTemporaryFile for everything?

[aarnphm]

@sauyon you need to change the tests patch requests to httpx. Let's open a separately PR to fix the test?

[xianml]

Looks like unit tests are failing, maybe because of the requests change...?

Should we just use a SpooledTemporaryFile for everything?

• checked the ut failed logs, seems our test case is out of date
• now, i just use SpooledTemporaryFile for pushing models. Shall we replaced it one by one ? i am not very confident with a big code change.