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add signatures to messages to avoid double processing

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This commit is contained in:
Chris Lu
2020-08-28 23:48:48 -07:00
parent 63ad1abcce
commit ca658a97c5
29 changed files with 331 additions and 214 deletions
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10
weed/filesys/meta_cache/meta_cache_subscribe.go
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@@ -12,10 +12,17 @@ import (
"github.com/chrislusf/seaweedfs/weed/util"
)
func SubscribeMetaEvents(mc *MetaCache, client filer_pb.FilerClient, dir string, lastTsNs int64) error {
func SubscribeMetaEvents(mc *MetaCache, selfSignature int32, client filer_pb.FilerClient, dir string, lastTsNs int64) error {
processEventFn := func(resp *filer_pb.SubscribeMetadataResponse) error {
message := resp.EventNotification
for _, sig := range message.Signatures {
if sig == selfSignature && selfSignature != 0 {
return nil
}
}
var oldPath util.FullPath
var newEntry *filer2.Entry
if message.OldEntry != nil {
@@ -41,6 +48,7 @@ func SubscribeMetaEvents(mc *MetaCache, client filer_pb.FilerClient, dir string,
ClientName: "mount",
PathPrefix: dir,
SinceNs: lastTsNs,
Signature: selfSignature,
})
if err != nil {
return fmt.Errorf("subscribe: %v", err)