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Only use truncate flag when creating non memory map files, rename and use memory map size for reserving max file size
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parent
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commit
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@ -12,22 +12,26 @@ import (
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"github.com/joeslay/seaweedfs/weed/os_overloads"
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"github.com/joeslay/seaweedfs/weed/os_overloads"
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)
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)
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func createVolumeFile(fileName string, preallocate int64, useMemoryMap uint32) (*os.File, error) {
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func createVolumeFile(fileName string, preallocate int64, memoryMapSizeMB uint32) (*os.File, error) {
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mMap, exists := memory_map.FileMemoryMap[fileName]
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mMap, exists := memory_map.FileMemoryMap[fileName]
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if !exists {
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if !exists {
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file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, useMemoryMap > 0)
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if useMemoryMap > 0 {
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memory_map.FileMemoryMap[fileName] = new(memory_map.MemoryMap)
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new_mMap := memory_map.FileMemoryMap[fileName]
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new_mMap.CreateMemoryMap(file, 1024*1024*1024*2)
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}
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if preallocate > 0 {
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if preallocate > 0 {
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glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
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glog.V(0).Infof("Preallocated disk space for %s is not supported", fileName)
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}
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}
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return file, e
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if memoryMapSizeMB > 0 {
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file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT, 0644, true)
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memory_map.FileMemoryMap[fileName] = new(memory_map.MemoryMap)
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new_mMap := memory_map.FileMemoryMap[fileName]
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new_mMap.CreateMemoryMap(file, 1024*1024*uint64(memoryMapSizeMB))
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return file, e
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} else {
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file, e := os_overloads.OpenFile(fileName, windows.O_RDWR|windows.O_CREAT|windows.O_TRUNC, 0644, false)
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return file, e
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}
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} else {
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} else {
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return mMap.File, nil
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return mMap.File, nil
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}
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}
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