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rafthttp: permit very large v2 snapshots

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v2 snapshots were hitting the 512MB message decode limit, causing
sending snapshots to new members to fail for being too big.
This commit is contained in:
Anthony Romano
2017-06-09 10:18:52 -07:00
parent 3b460506d9
commit 9543431aeb
2 changed files with 7 additions and 2 deletions
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6
rafthttp/msg_codec.go
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@@ -48,12 +48,16 @@ var (
)
func (dec *messageDecoder) decode() (raftpb.Message, error) {
return dec.decodeLimit(readBytesLimit)
}
func (dec *messageDecoder) decodeLimit(numBytes uint64) (raftpb.Message, error) {
var m raftpb.Message
var l uint64
if err := binary.Read(dec.r, binary.BigEndian, &l); err != nil {
return m, err
}
if l > readBytesLimit {
if l > numBytes {
return m, ErrExceedSizeLimit
}
buf := make([]byte, int(l))