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mount: random read also try to use the local cache first

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chrislu 2022-07-07 11:50:28 -07:00
parent 05c53820b9
commit f2f0482dd3
1 changed files with 4 additions and 0 deletions
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4
weed/filer/reader_at.go
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@ -164,6 +164,10 @@ func (c *ChunkReadAt) doReadAt(p []byte, offset int64) (n int, err error) {
func (c *ChunkReadAt) readChunkSliceAt(buffer []byte, chunkView *ChunkView, nextChunkViews []*ChunkView, offset uint64) (n int, err error) { func (c *ChunkReadAt) readChunkSliceAt(buffer []byte, chunkView *ChunkView, nextChunkViews []*ChunkView, offset uint64) (n int, err error) {
if c.readerPattern.IsRandomMode() { if c.readerPattern.IsRandomMode() {
n, err := c.readerCache.chunkCache.ReadChunkAt(buffer, chunkView.FileId, offset)
if n > 0 {
return n, err
}
return fetchChunkRange(buffer, c.readerCache.lookupFileIdFn, chunkView.FileId, chunkView.CipherKey, chunkView.IsGzipped, int64(offset)) return fetchChunkRange(buffer, c.readerCache.lookupFileIdFn, chunkView.FileId, chunkView.CipherKey, chunkView.IsGzipped, int64(offset))
} }