Blockchain maintenance method and apparatus, server, and computer-readable storage medium

1. A blockchain maintenance method, wherein the method comprises:

receiving configuration information that is of a target blockchain node group of a first tenant and that is sent by a management node;

obtaining channel configuration information of a channel from a consensus organization, wherein the channel corresponds to a blockchain, the channel configuration information comprises an identifier of the channel and configuration information of one or more blockchain node groups that have joined the channel;

generating channel adjustment information of the channel based on the channel configuration information and the configuration information that is of the target blockchain node group and that is received from the management node, wherein the channel adjustment information comprises the identifier of the channel and configuration information of a blockchain node group other than the target blockchain node group in the one or more blockchain node groups that have joined the channel;

sending the channel adjustment information to the consensus organization;

obtaining, from the consensus organization, a block comprising the channel adjustment information; and

adding the block to a blockchain stored in a blockchain node group that has joined the channel.

2. The method according to claim 1 , wherein the configuration information of the target blockchain node group comprises:

an operation permission of the target blockchain node group;

a permission certificate of the target blockchain node group; and

a security algorithm used by the target blockchain node group.

3. The method according to claim 1 , wherein the method comprises:

for a contract matter that requires the target blockchain node group to participate in endorsement, updating, in a chaincode used to execute the contract matter, an endorsement policy corresponding to the contract matter, wherein an updated endorsement policy specifies that the target blockchain node group does not participate in endorsement of a transaction record obtained by executing the contract matter.

4. A blockchain maintenance method, wherein the method comprises:

instructing an execution node of a first tenant to stop running, in a resource isolation region of the first tenant, a target blockchain node group that has joined a channel, wherein the channel corresponds to a blockchain; and

obtaining configuration information of the target blockchain node group, and sending the configuration information of the target blockchain node group to an execution node of a second tenant.

5. The method according to claim 4 , wherein the configuration information of the target blockchain node group comprises:

an operation permission of the target blockchain node group;

a permission certificate of the target blockchain node group; and

a security algorithm used by the target blockchain node group.

6. The method according to claim 4 , wherein the method comprises:

sending a request for removing the first tenant from the channel to a tenant other than the first tenant in one or more tenants that have joined the channel;

receiving feedback on the request from the one or more tenants other than the first tenant that have joined the channel; and

reaching, according to a consensus policy, a consensus on removing the first tenant from the channel for the feedback.

7. The method according to claim 6 , wherein the method comprises:

responsive to determining a virus exists in the resource isolation region of the first tenant, generating the request for removing the first tenant from the channel.

8. The method according to claim 4 , wherein the method comprises:

for a contract matter that requires the target blockchain node group to participate in endorsement, instructing the execution node of the first tenant to update an endorsement policy corresponding to the contract matter, wherein an updated endorsement policy specifies that the target blockchain node group does not participate in endorsement of a transaction record obtained by executing the contract matter.

9. A server, comprising a processor and a memory, wherein

the memory is configured to store a computer instruction; and

the processor is configured to execute the computer instruction stored in the memory, so that the server is configured to:

receive configuration information that is of a target blockchain node group of a first tenant and that is sent by a management node;

obtain channel configuration information of a channel from a consensus organization, wherein the channel corresponds to a blockchain, the channel configuration information comprises an identifier of the channel and configuration information of one or more blockchain node groups that have joined the channel;

generate channel adjustment information of the channel based on the channel configuration information and the configuration information that is of the target blockchain node group and that is received from the management node, wherein the channel adjustment information comprises the identifier of the channel and configuration information of a blockchain node group other than the target blockchain node group in the one or more blockchain node groups that have joined the channel;

send the channel adjustment information to the consensus organization; and

obtain, from the consensus organization, a block comprising the channel adjustment information, and add the block to a blockchain stored in a blockchain node group that has joined the channel.

10. The server according to claim 9 , wherein the configuration information of the target blockchain node group comprises:

an operation permission of the target blockchain node group.

11. The server according to claim 9 , wherein the configuration information of the target blockchain node group comprises:

a permission certificate of the target blockchain node group.

12. The server according to claim 9 , wherein the configuration information of the target blockchain node group comprises:

a security algorithm used by the target blockchain node group.

13. The server according to claim 9 , wherein the server is configured to:

for a contract matter that requires the target blockchain node group to participate in endorsement, update, in a chaincode used to execute the contract matter, an endorsement policy corresponding to the contract matter, wherein an updated endorsement policy specifies that the target blockchain node group does not participate in endorsement of a transaction record obtained by executing the contract matter.

14. A server, comprising a processor and a memory, wherein

the memory is configured to store a computer instruction; and

the processor is configured to execute the computer instruction stored in the memory, so that the server is configured to: instruct an execution node of a first tenant to stop running, in a resource isolation region of the first tenant, a target blockchain node group that has joined a channel, wherein the channel corresponds to a blockchain;

obtain configuration information of the target blockchain node group; and

send the configuration information of the target blockchain node group to an execution node of a second tenant.

15. The server according to claim 14 , wherein the configuration information of the target blockchain node group comprises:

an operation permission of the target blockchain node group.

16. The server according to claim 14 , wherein the configuration information of the target blockchain node group comprises:

a permission certificate of the target blockchain node group.

17. The server according to claim 15 , wherein the configuration information of the target blockchain node group comprises:

a security algorithm used by the target blockchain node group.

18. The server according to claim 14 , wherein the server is configured to: send, to a tenant other than the first tenant in one or more tenants that have joined the channel, a request for removing the first tenant from the channel; and

receive feedback on the request from the one or more tenants other than the first tenant that have joined the channel, and reach, according to a consensus policy, a consensus on removing the first tenant from the channel for the feedback.

19. The server according to claim 18 , wherein the server is configured to: responsive to determining a virus exists in the resource isolation region of the first tenant, generate the request for exiting the first tenant from the channel.

20. The server according to claim 14 , wherein the server is configured to: for a contract matter that requires the target blockchain node group to participate in endorsement, instruct the execution node of the first tenant to update an endorsement policy corresponding to the contract matter, wherein an updated endorsement policy specifies that the target blockchain node group does not participate in endorsement of a transaction record obtained by executing the contract matter.