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Do channel hold a ledger? Or it only stored in peers? Hyperledger Fabric

Unable to connect peer to channel in hyperledger fabricError while trying to join peer to channel in fabricWhy we need validated ledger in a peer in hyperledger fabric?Multichannel channel creation in Hyperledger Fabric 1.0Ledger Copies (Hyperledger Fabric)Hyperledger Composer Channels conceptsHyper Ledger Channel scalabilityHyperledger fabric network(1.1.0) cannot create a channel between a peer and an ordererhow to use node js SDK in hyperledger Fabric?Unable to join Anchor Peer after updating the Channel in Hyperledger Fabric

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;

0

According to Fabric-node-sdk documentation

For a peer node to become part of a channel, it must be sent the genesis block

According to fabric-documentation

There is one ledger per channel. Each peer maintains a copy of the ledger for each channel of which they are a member.

To join channel peer requires a genesis block, the genesis block is acquired from channel.

So does this mean that channel also holds a copy of ledger?

Edited

For a new network First we create channel and then peers join the channel.

So how the peers will get the genesis block when they yet not part of channel and don't have copy of ledger?

Consider the first peer who is joining channel, no other peers are joined yet.

hyperledger-fabric hyperledger

share|improve this question

edited Mar 26 at 11:22

Shubham Chadokar

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

add a comment | 

0

According to Fabric-node-sdk documentation

For a peer node to become part of a channel, it must be sent the genesis block

According to fabric-documentation

There is one ledger per channel. Each peer maintains a copy of the ledger for each channel of which they are a member.

To join channel peer requires a genesis block, the genesis block is acquired from channel.

So does this mean that channel also holds a copy of ledger?

Edited

For a new network First we create channel and then peers join the channel.

So how the peers will get the genesis block when they yet not part of channel and don't have copy of ledger?

Consider the first peer who is joining channel, no other peers are joined yet.

hyperledger-fabric hyperledger

share|improve this question

edited Mar 26 at 11:22

Shubham Chadokar

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

add a comment | 

According to Fabric-node-sdk documentation

For a peer node to become part of a channel, it must be sent the genesis block

According to fabric-documentation

There is one ledger per channel. Each peer maintains a copy of the ledger for each channel of which they are a member.

To join channel peer requires a genesis block, the genesis block is acquired from channel.

So does this mean that channel also holds a copy of ledger?

Edited

For a new network First we create channel and then peers join the channel.

So how the peers will get the genesis block when they yet not part of channel and don't have copy of ledger?

Consider the first peer who is joining channel, no other peers are joined yet.

hyperledger-fabric hyperledger

share|improve this question

edited Mar 26 at 11:22

Shubham Chadokar

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

share|improve this question

edited Mar 26 at 11:22

Shubham Chadokar

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

share|improve this question

edited Mar 26 at 11:22

Shubham Chadokar

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

asked Mar 26 at 9:43

Shubham ChadokarShubham Chadokar

13511 silver badge1313 bronze badges

1 Answer
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There only exists one consistent channel ledger across the channel held all the peers and orderers in the channel. The channel doesn't exist as a tangible entity but rather as a logical boundary allowing concurrent actions.

So, When a peer requires the genesis block or any block in a channel ledger, It is provided by the other peers in the channel by discovery service or the orderer.

The channel config in the ledger holds the info about the peers in channels along with the MSP's defined for the channel.

share|improve this answer

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I edited the question, please check it. What will happen for 1st peer who join the channel when no other peers joined yet?
  
  – Shubham Chadokar
  Mar 26 at 11:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The orderer is requested for the channel config block before the peer is joined. in cli this is done by peer channel fetch 0 mychannel.block -o orderer.example.com:7050 -c $CHANNEL_NAME --tls --cafile $ORDERER_CA. The join channel happens after the channel config is received like peer channel join -b mychannel.block
  
  – Yadhukrishna S Pai
  Mar 26 at 11:41
  

  
  
  
  

add a comment | 

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0

There only exists one consistent channel ledger across the channel held all the peers and orderers in the channel. The channel doesn't exist as a tangible entity but rather as a logical boundary allowing concurrent actions.

So, When a peer requires the genesis block or any block in a channel ledger, It is provided by the other peers in the channel by discovery service or the orderer.

The channel config in the ledger holds the info about the peers in channels along with the MSP's defined for the channel.

share|improve this answer

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I edited the question, please check it. What will happen for 1st peer who join the channel when no other peers joined yet?
  
  – Shubham Chadokar
  Mar 26 at 11:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The orderer is requested for the channel config block before the peer is joined. in cli this is done by peer channel fetch 0 mychannel.block -o orderer.example.com:7050 -c $CHANNEL_NAME --tls --cafile $ORDERER_CA. The join channel happens after the channel config is received like peer channel join -b mychannel.block
  
  – Yadhukrishna S Pai
  Mar 26 at 11:41
  

  
  
  
  

add a comment | 

0

There only exists one consistent channel ledger across the channel held all the peers and orderers in the channel. The channel doesn't exist as a tangible entity but rather as a logical boundary allowing concurrent actions.

So, When a peer requires the genesis block or any block in a channel ledger, It is provided by the other peers in the channel by discovery service or the orderer.

The channel config in the ledger holds the info about the peers in channels along with the MSP's defined for the channel.

share|improve this answer

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I edited the question, please check it. What will happen for 1st peer who join the channel when no other peers joined yet?
  
  – Shubham Chadokar
  Mar 26 at 11:23
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The orderer is requested for the channel config block before the peer is joined. in cli this is done by peer channel fetch 0 mychannel.block -o orderer.example.com:7050 -c $CHANNEL_NAME --tls --cafile $ORDERER_CA. The join channel happens after the channel config is received like peer channel join -b mychannel.block
  
  – Yadhukrishna S Pai
  Mar 26 at 11:41
  

  
  
  
  

add a comment | 

There only exists one consistent channel ledger across the channel held all the peers and orderers in the channel. The channel doesn't exist as a tangible entity but rather as a logical boundary allowing concurrent actions.

So, When a peer requires the genesis block or any block in a channel ledger, It is provided by the other peers in the channel by discovery service or the orderer.

The channel config in the ledger holds the info about the peers in channels along with the MSP's defined for the channel.

share|improve this answer

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

share|improve this answer

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges

answered Mar 26 at 11:14

Yadhukrishna S PaiYadhukrishna S Pai

44533 silver badges1111 bronze badges