[Buildbot-devel] Deleting log files from a buildbot master and how it affects Waterfall

[J. Félix Ontañón]

Hi all.

I've suffered some problems with unexpected behavior with waterfall.

By two times, after killing buildbot master/slaves, with slaves
performing buildsteps, the waterfall fails with a web.Server Traceback
error that says "unicode error: Can't decode ascii character at X
position".

I solved it by removing the build log files in master that refers to
the build i stopped abruptly and which are used to render the
waterfall.

I'm talking about the buildnumber-log-MyBuildStepName-logname files as:
8
8-log-MergeRepo-interrupt
8-log-MergeRepo-stdio
8-log-UpdateDerivative-stdio
8-log-UpdateDerivative-Warnings
7
7-log-BuildImage-stdio
7-log-Lig-stdio
7-log-MergeRepo-stdio
7-log-UpdateDerivative-stdio
7-log-UpdateDerivative-Warnings

Now, the problem is: Removing the "corrupted" build log files and
every previous builds doesn't appear in the waterfall, but they
still appear in any other page as one_per_build or the build page!

It's there any way to get those builds back to the waterfall?

Thanks in advance.