forked from couchbase/go-couchbase
/
observe.go
96 lines (80 loc) · 2.02 KB
/
observe.go
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package main
import (
"flag"
"fmt"
"github.com/couchbase/go-couchbase"
"log"
"time"
)
var serverURL = flag.String("serverURL", "http://localhost:9000",
"couchbase server URL")
var poolName = flag.String("poolName", "default",
"pool name")
var bucketName = flag.String("bucketName", "default",
"bucket name")
func main() {
flag.Parse()
couchbase.EnableMutationToken = true
client, err := couchbase.Connect(*serverURL)
if err != nil {
log.Printf("Connect failed %v", err)
return
}
cbpool, err := client.GetPool("default")
if err != nil {
log.Printf("Failed to connect to default pool %v", err)
return
}
var cbbucket *couchbase.Bucket
cbbucket, err = cbpool.GetBucket(*bucketName)
if err != nil {
log.Printf("Failed to connect to bucket %v", err)
return
}
go cbbucket.StartOPPollers(4)
dsSet := false
err = cbbucket.SetObserveAndPersist(couchbase.PersistMaster, couchbase.ObserveReplicateTwo)
if err != nil {
log.Printf("Not supported %v", err)
} else {
dsSet = true
}
if dsSet == false {
err = cbbucket.SetObserveAndPersist(couchbase.PersistMaster, couchbase.ObserveReplicateOne)
if err != nil {
log.Printf("Not supported %v", err)
} else {
dsSet = true
}
}
if dsSet == false {
err = cbbucket.SetObserveAndPersist(couchbase.PersistMaster, couchbase.ObserveNone)
if err != nil {
log.Fatal(err)
}
}
i := 512
var mt *couchbase.MutationToken
var failover bool
for {
key := fmt.Sprintf("key%d", i)
value := fmt.Sprintf("value%d", i)
mt, err = cbbucket.SetWithMeta(key, 0, 10, value)
if err != nil {
log.Printf(" Set operation failed for key %v. error %v", key, err)
goto skip_mutation
}
log.Printf(" Got mutation token %v", mt)
//observe persist this mutation
err, failover = cbbucket.ObserveAndPersistPoll(mt.VBid, mt.Guard, mt.Value)
if err != nil {
log.Printf("Failure in Observe / Persist %v", err)
}
if failover == true {
log.Printf(" Hard failover, cannot meet durablity requirements")
}
skip_mutation:
<-time.After(1 * time.Second)
i++
}
}