Add fsync after creating new manifest #351
Merged
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This simple PR adds an fsync call on the manifest file when a new
manifest file is generated at the start.
In absence of this, the code updates the "CURRENT" and deletes the
previous manifest file and a crash at this point could leave the latest
manifest with a single incomplete record. With this content in the manifest file,
a restart is expected to lead to manifest corrupt error
This seems to explain the error observed in issue #335. We too have observed this error in our environment.
closes #335.