How ordering nodes synchronize work?

0 votes
Kafka keeps data only for 7 days. Suppose I shut down a ordered node for 7 days and turn it on after 7 days, how will the node sync with the network?
Jul 3, 2018 in Blockchain by slayer
• 29,050 points
42 views

1 answer to this question.

0 votes
Best answer

To prevent time-based retention and prevent expiring of data, kafka brokers are set with log.retention.ms = -1. This means that the data is not erased after 7 days, it stays there even after and the entire transaction history is present.

When a new orderer service node(or a node that has been shut down for more than 7 days) is added, the kafka brokers
help them to synchronize work.

answered Jul 3, 2018 by Omkar
• 67,380 points

selected Jul 3, 2018 by slayer

Related Questions In Blockchain

+4 votes
4 answers

How does the blockchain verification process work?

First of all, when someone creates a ...READ MORE

answered Mar 26, 2018 in Blockchain by Perry
• 17,020 points
174 views
+1 vote
1 answer

How does a miner get to know that a transaction is verified by all the nodes?

Contrary to the popular belief, it is ...READ MORE

answered Mar 26, 2018 in Blockchain by Johnathon
• 9,080 points
68 views
+1 vote
1 answer

How blockchain nodes switches to another chain?

Each individual transaction is validated by every ...READ MORE

answered Apr 7, 2018 in Blockchain by Christine
• 15,790 points
20 views
0 votes
1 answer
0 votes
1 answer

Invalid Batch or signature in Savtooth

This will solve your problem import org.apache.commons.codec.binary.Hex; Transaction txn ...READ MORE

answered Aug 1, 2018 in Blockchain by digger
• 27,640 points
67 views
0 votes
1 answer

In hyperledger, how many number of ordering node can take up a transaction?

There are two types to implement ordering: 1. ...READ MORE

answered Jun 25, 2018 in Blockchain by Omkar
• 67,380 points

edited Jun 28, 2018 by Omkar 244 views
0 votes
1 answer