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authorChris Lu <chris.lu@gmail.com>2019-11-08 22:54:41 -0800
committerChris Lu <chris.lu@gmail.com>2019-11-08 22:54:41 -0800
commitc5c1d83d91e5de51dd51b96cf338b00f38532d6c (patch)
tree692fed158b681b636fcb76ddf4702fb11d712835 /weed/server/volume_grpc_erasure_coding.go
parentdb30a460503d3a0c81ae78e621d5acf61585c473 (diff)
parentc34ffed43f9e6afde139c78a723fc56d843e03d4 (diff)
downloadseaweedfs-c5c1d83d91e5de51dd51b96cf338b00f38532d6c.tar.xz
seaweedfs-c5c1d83d91e5de51dd51b96cf338b00f38532d6c.zip
Merge branch 'master' into refactoring_dat_backend
Diffstat (limited to 'weed/server/volume_grpc_erasure_coding.go')
-rw-r--r--weed/server/volume_grpc_erasure_coding.go10
1 files changed, 8 insertions, 2 deletions
diff --git a/weed/server/volume_grpc_erasure_coding.go b/weed/server/volume_grpc_erasure_coding.go
index 8140a06f6..242480197 100644
--- a/weed/server/volume_grpc_erasure_coding.go
+++ b/weed/server/volume_grpc_erasure_coding.go
@@ -252,9 +252,14 @@ func (vs *VolumeServer) VolumeEcShardRead(req *volume_server_pb.VolumeEcShardRea
startOffset, bytesToRead := req.Offset, req.Size
for bytesToRead > 0 {
- bytesread, err := ecShard.ReadAt(buffer, startOffset)
+ // min of bytesToRead and bufSize
+ bufferSize := bufSize
+ if bufferSize > bytesToRead {
+ bufferSize = bytesToRead
+ }
+ bytesread, err := ecShard.ReadAt(buffer[0:bufferSize], startOffset)
- // println(fileName, "read", bytesread, "bytes, with target", bytesToRead)
+ // println("read", ecShard.FileName(), "startOffset", startOffset, bytesread, "bytes, with target", bufferSize)
if bytesread > 0 {
if int64(bytesread) > bytesToRead {
@@ -268,6 +273,7 @@ func (vs *VolumeServer) VolumeEcShardRead(req *volume_server_pb.VolumeEcShardRea
return err
}
+ startOffset += int64(bytesread)
bytesToRead -= int64(bytesread)
}