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Ensuring multipart size even when storage is low

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When the temporary storage was full, the old implementation started an
upload even if there was not enough data to completely fill the minimum
multipart size or fill the user-selected multipart size.

The new implementation ensures the minimum multipart size by forcing
the user-selected multipart size.

Fixes #1591
This commit is contained in:
Carsten Grohmann 2021-05-04 21:09:35 +02:00 committed by Andrew Gaul
parent 4b69d4b1bb
commit 9bf525ee7a
1 changed files with 4 additions and 0 deletions
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4
src/fdcache_entity.cpp
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@ -1498,6 +1498,10 @@ ssize_t FdEntity::Write(const char* bytes, off_t start, size_t size)
S3FS_PRN_WARN("Not enough local storage to cache write request: [path=%s][fd=%d][offset=%lld][size=%zu]", path.c_str(), fd, static_cast<long long int>(start), size);
return -ENOSPC; // No space left on device
}
if ((start + static_cast<off_t>(size)) <= S3fsCurl::GetMultipartSize()) {
S3FS_PRN_WARN("Not enough local storage to cache write request till multipart upload can start: [path=%s][fd=%d][offset=%lld][size=%zu]", path.c_str(), fd, static_cast<long long int>(start), size);
return -ENOSPC; // No space left on device
}
if(0 != (result = NoCachePreMultipartPost())){
S3FS_PRN_ERR("failed to switch multipart uploading with no cache(errno=%d)", result);
return result;