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Change sqlite3_busy_timeout to 60 seconds, add warnings re: litestream. #4867

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merged 2 commits into from
Oct 17, 2021

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ZmnSCPxj
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Fixes: #4860

Fixes: #4857 if @x3nb63 can confirm

We need to specify versions in BACKUP.md since it is published on https://lightning.readthedocs.io/BACKUP.html and users might assume the recommendation applies to all versions; litestream will reliably work after 5bf2b5c and on reasonably fast media/low-load conditions.

@ZmnSCPxj ZmnSCPxj requested a review from cdecker as a code owner October 15, 2021 13:54
@ZmnSCPxj ZmnSCPxj force-pushed the fix-litestream branch 2 times, most recently from 90079f0 to 6cb6e5a Compare October 15, 2021 14:15
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LGTM, I have only a small question, because I'm missing some things.

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Oh, I got it. my fault sorry.

ack 6cb6e5a

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Let's just increase the default to 30 or 60 seconds. I mean, we could do better, but the user surely prefers a delay to a crash!

Providing knobs like this is a last resort, IMHO.

@rustyrussell rustyrussell added this to the v0.10.2 milestone Oct 16, 2021
Closes: ElementsProject#4860

ChangeLog-Added: With `sqlite3` db backend we now use a 60-second busy timer, to allow backup processes like `litestream` to operate safely.
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Use 60-second timeout without exposing new option to user, updated BACKUP.md appropriately.

@ZmnSCPxj ZmnSCPxj changed the title Add --sqlite3-busy-timeout option, add warnings re: litestream. Change sqlite3_busy_timeout to 60 seconds, add warnings re: litestream. Oct 16, 2021
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ack 2434e4d

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Ack 2434e4d

@ZmnSCPxj ZmnSCPxj merged commit 3e902e2 into ElementsProject:master Oct 17, 2021
@ZmnSCPxj ZmnSCPxj deleted the fix-litestream branch October 18, 2021 00:11
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litestream recommendation may lead to crashes? crashes with "database is locked"
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