Hi, In the hbase-1.4.10, I have enabled replication for all tables and configured the peer_id. the list_peers provide the below result:
hbase(main):001:0> list_peers > PEER_ID CLUSTER_KEY ENDPOINT_CLASSNAME STATE TABLE_CFS BANDWIDTH > 1 10.XX.221.XX,10.XX.234.XX,10.XX.212.XX:2171:/hbase nil ENABLED nil 0 > 1 row(s) in 0.1430 seconds But the status_replication shows replication lag hbase(main):002:0> status 'replication' > version 1.4.10 > 3 live servers > 10.XX.232.XX: > SOURCE: PeerID=1, AgeOfLastShippedOp=0, SizeOfLogQueue=1, > TimeStampsOfLastShippedOp=Thu Jan 01 05:30:00 IST 1970, Replication Lag= > *1619545264329* > SINK : AgeOfLastAppliedOp=0, TimeStampsOfLastAppliedOp=Tue Apr 27 > 23:09:23 IST 2021 > 10.XX.118.XX: > SOURCE: PeerID=1, AgeOfLastShippedOp=0, SizeOfLogQueue=1, > TimeStampsOfLastShippedOp=Thu Jan 01 05:30:00 IST 1970, Replication Lag= > *1619545264663* > SINK : AgeOfLastAppliedOp=0, TimeStampsOfLastAppliedOp=Tue Apr 27 > 18:53:23 IST 2021 > 10.XX.138.XX: > SOURCE: PeerID=1, AgeOfLastShippedOp=0, SizeOfLogQueue=1, > TimeStampsOfLastShippedOp=Thu Jan 01 05:30:00 IST 1970, Replication Lag= > *1619545263509* > SINK : AgeOfLastAppliedOp=0, TimeStampsOfLastAppliedOp=Tue Apr 27 > 10:31:05 IST 2021 But all the data are replicated properly to the defined cluster. I have checked the table in both clusters. I have verified using VerifyReplication Mapreduce to check unreplicated rows. But there are no rows in the unreplicated one. All are good Rows. ./hbase org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication 1 > tablename org.apache.hadoop.hbase.mapreduce.replication.VerifyReplication$Verifier$Counters > GOODROWS=45 > File Input Format Counters > Bytes Read=0 > File Output Format Counters > Bytes Written=0 Due to this issue, I have Zknodes under replication is growing exponentially which causes issues in running ZK cluster which eventually affects the Hbase Connection too. Below exception occurs in ZK *ERROR java.io.IOException: Len error* Increasing jute.maxbuffer in ZK will not solve the problem as replication znode is increasing though the data are replicated properly to the given cluster Peer_id. I have enabled two-way replication between the cluster. It happens in both the cluster. hbase version - 1.4.10 ZK Version - 3.4.10 Hadoop version - 2.7.3 Please help to fix this. Regards, Roshan
