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azureblob: implement OpenChunkWriter and multi-thread uploads #7056

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This implements the OpenChunkWriter interface for azureblob which
enables multi-thread uploads.

This makes the memory controls of the s3 backend inoperative; they are
replaced with the global ones.

    --azureblob-memory-pool-flush-time
    --azureblob-memory-pool-use-mmap

By using the buffered reader this fixes excessive memory use when
uploading large files as it will share memory pages between all
readers.
This commit is contained in:
Nick Craig-Wood
2023-08-16 16:59:39 +01:00
parent 3dfcfc2caa
commit 0427177857
2 changed files with 298 additions and 273 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
backend/azureblob/azureblob_internal_test.go
View File

@@ -20,17 +20,18 @@ func (f *Fs) InternalTest(t *testing.T) {
func TestIncrement(t *testing.T) {
for _, test := range []struct {
in []byte
want []byte
in [8]byte
want [8]byte
}{
{[]byte{0, 0, 0, 0}, []byte{1, 0, 0, 0}},
{[]byte{0xFE, 0, 0, 0}, []byte{0xFF, 0, 0, 0}},
{[]byte{0xFF, 0, 0, 0}, []byte{0, 1, 0, 0}},
{[]byte{0, 1, 0, 0}, []byte{1, 1, 0, 0}},
{[]byte{0xFF, 0xFF, 0xFF, 0xFE}, []byte{0, 0, 0, 0xFF}},
{[]byte{0xFF, 0xFF, 0xFF, 0xFF}, []byte{0, 0, 0, 0}},
{[8]byte{0, 0, 0, 0}, [8]byte{1, 0, 0, 0}},
{[8]byte{0xFE, 0, 0, 0}, [8]byte{0xFF, 0, 0, 0}},
{[8]byte{0xFF, 0, 0, 0}, [8]byte{0, 1, 0, 0}},
{[8]byte{0, 1, 0, 0}, [8]byte{1, 1, 0, 0}},
{[8]byte{0xFF, 0xFF, 0xFF, 0xFE}, [8]byte{0, 0, 0, 0xFF}},
{[8]byte{0xFF, 0xFF, 0xFF, 0xFF}, [8]byte{0, 0, 0, 0, 1}},
{[8]byte{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}, [8]byte{0, 0, 0, 0, 0, 0, 0}},
} {
increment(test.in)
increment(&test.in)
assert.Equal(t, test.want, test.in)
}
}