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ReadAt may return io.EOF t end of file

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related to https://github.com/seaweedfs/seaweedfs/issues/6219
This commit is contained in:
chrislu
2024-11-21 00:37:38 -08:00
parent be09d08eb6
commit c9f3448692
11 changed files with 73 additions and 21 deletions
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6
weed/mount/page_writer/page_chunk_swapfile.go
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@@ -4,6 +4,7 @@ import (
"github.com/seaweedfs/seaweedfs/weed/glog"
"github.com/seaweedfs/seaweedfs/weed/util"
"github.com/seaweedfs/seaweedfs/weed/util/mem"
"io"
"os"
"sync"
)
@@ -130,7 +131,10 @@ func (sc *SwapFileChunk) ReadDataAt(p []byte, off int64, tsNs int64) (maxStop in
logicStop := min(off+int64(len(p)), chunkStartOffset+t.stopOffset)
if logicStart < logicStop {
actualStart := logicStart - chunkStartOffset + int64(sc.actualChunkIndex)*sc.swapfile.chunkSize
if _, err := sc.swapfile.file.ReadAt(p[logicStart-off:logicStop-off], actualStart); err != nil {
if n, err := sc.swapfile.file.ReadAt(p[logicStart-off:logicStop-off], actualStart); err != nil {
if err == io.EOF && n == int(logicStop-logicStart) {
err = nil
}
glog.Errorf("failed to reading swap file %s: %v", sc.swapfile.file.Name(), err)
break
}