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Reckless: dont crash the plugin#8455

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rustyrussell merged 3 commits intoElementsProject:masterfrom
endothermicdev:reckless-dont-crash-plugin
Aug 18, 2025
Merged

Reckless: dont crash the plugin#8455
rustyrussell merged 3 commits intoElementsProject:masterfrom
endothermicdev:reckless-dont-crash-plugin

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@endothermicdev endothermicdev commented Aug 14, 2025

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Before submitting the PR, ensure the following tasks are completed. If an item is not applicable to your PR, please mark it as checked:

  • The changelog has been updated in the relevant commit(s) according to the guidelines.
  • Tests have been added or modified to reflect the changes.
  • Documentation has been reviewed and updated as needed.
  • Related issues have been listed and linked, including any that this PR closes.

The legacy uv installer was extremely verbose and the flood of output caused a crash in the reckless-rpc plugin. This gives the plugin time to react, but also reduces the verbosity as most of it was dependency resolution from requirements.txt which was generally superfluous.

@endothermicdev endothermicdev added this to the v25.09 milestone Aug 14, 2025
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endothermicdev commented Aug 14, 2025 •
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fixes: #8444

@ShahanaFarooqui ShahanaFarooqui linked an issue Aug 14, 2025 that may be closed by this pull request
reckless-rpc installation fails but direct installation via reckless works #8444
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ShahanaFarooqui commented Aug 14, 2025

Consolidate plugin installation passes after 2-3 tries but summary still keeps failing with error:

...
"INFO: dependencies installed successfully",
"INFO: plugin installed: <home>/l1/reckless/summary",
"DEBUG: activating summary",
"ERROR: reckless: summary failed to start!",
"ERROR: CLIError(-32602 <home>/l1/reckless/summary/summary.py: Invalid argument)",
"ERROR: dynamic activation failed: summary not found in reckless directory"

rustyrussell
rustyrussell requested changes Aug 15, 2025
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tests/test_reckless.py Outdated
header = line


@unittest.skipIf(VALGRIND, "virtual environment triggers memleak detection")
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Better is #8457

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endothermicdev commented Aug 15, 2025

ERROR: CLIError(-32602 /l1/reckless/summary/summary.py: Invalid argument)

This is lightning-cli being called and rejecting the lightning-cli plugin start <location> command, due to an invalid argument. I wasn't able to uncover much as to why it's being rejected - the location was accurate. And retrying, it was eventually accepted. But I would have expected a <location> is not executable: No such file or directory error, not a rejection of the command format.

ShahanaFarooqui
ShahanaFarooqui approved these changes Aug 15, 2025
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ACK 98b524b

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ShahanaFarooqui commented Aug 15, 2025

This is lightning-cli being called and rejecting the lightning-cli plugin start <location> command, due to an invalid argument. I wasn't able to uncover much as to why it's being rejected - the location was accurate. And retrying, it was eventually accepted. But I would have expected a <location> is not executable: No such file or directory error, not a rejection of the command format.

It is strange that when reckless plugin calls the same lightning-cli command

[2025-08-15 10:37:14,830] DEBUG: calling ['lightning-cli', '--network=regtest', '--lightning-dir=/home/shahana/workspace/dummy-networks/regtest-network/l1', 'plugin', 'start', '/home/shahana/workspace/dummy-networks/regtest-network/l1/reckless/summary/summary.py']

It successfully starts the plugin and fixes subsequent reckless-rpc calls in the process too.

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rustyrussell commented Aug 17, 2025

Removed first commit, rebased.

@rustyrussell rustyrussell force-pushed the reckless-dont-crash-plugin branch from 98b524b to 7cf95b0 Compare August 17, 2025 00:19
@endothermicdev @rustyrussell
reckless: store source locations as correct type
e078332
@endothermicdev @rustyrussell
reckless: reduce uv verbosity and avoid flooding output
e67dd18 
This was overloading the reckless-rpc plugin input when outputting
json all in one shot. The verbosity was mostly dependency resolution
which wasn't all that helpful so call uv pip install as normal.

Changelog-None: bug introduced this release.
@endothermicdev @rustyrussell
reckless-rpc: increase initial buffer size
906bc7a 
Reckless uv installations typically produce 3KB+ of output.
@rustyrussell rustyrussell force-pushed the reckless-dont-crash-plugin branch from 7cf95b0 to 906bc7a Compare August 18, 2025 01:52
@rustyrussell rustyrussell self-requested a review August 18, 2025 02:27
@rustyrussell rustyrussell merged commit 1d513c2 into ElementsProject:master Aug 18, 2025
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@rustyrussell rustyrussell rustyrussell approved these changes

@ShahanaFarooqui ShahanaFarooqui ShahanaFarooqui approved these changes

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reckless-rpc installation fails but direct installation via reckless works

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