[GH-ISSUE #1825] Audit partial writes #937

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opened 2026-03-04 01:50:04 +03:00 by kerem · 1 comment

kerem commented

2026-03-04 01:50:04 +03:00

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Originally created by @gaul on GitHub (Jan 2, 2022).
Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1825

Most of our code calls pwrite and checks != -1. There are some corner cases with signals and disk full that can cause partial writes. We should add a helper function which restarts the write with the partial buffer. It would also be nice to write an LD_PRELOAD helper which simulates these short writes.

Originally created by @gaul on GitHub (Jan 2, 2022). Original GitHub issue: https://github.com/s3fs-fuse/s3fs-fuse/issues/1825 Most of our code calls `pwrite` and checks != -1. There are some corner cases with signals and disk full that can cause partial writes. We should add a helper function which restarts the write with the partial buffer. It would also be nice to write an `LD_PRELOAD` helper which simulates these short writes.

kerem commented

2026-03-04 01:50:05 +03:00

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@ggtakec commented on GitHub (Jan 9, 2022):

I think it is easy to implement the retry processing of interruption by signal.
And recovering Disk full seems to be difficult because I think that an error will occur again even if trying again.(Because we have to make free disk space, ...)

@ggtakec commented on GitHub (Jan 9, 2022): I think it is easy to implement the retry processing of interruption by signal. And recovering Disk full seems to be difficult because I think that an error will occur again even if trying again.(Because we have to make free disk space, ...)