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Offline Synchronization Frequently Asked Questions

Last updated: 2024-08-24 14:03:04

1. Confirm that connecting CCN products across regions requires public network bandwidth

DataInLong resource groups need to be in the same VPC network as the customer's database for internal network access. If the integration resource group and the database are in different regional VPCs, the network needs to be connected through CCN CCN.
CCN CCN is set to allow 10Kb of traffic by default for convenience in testing. This is only suitable for small data synchronization and network testing. For performance testing and production tasks, please purchase bandwidth to avoid data synchronization being limited by network bandwidth.




2. Hive On CHDFS Table Write Error: Permission denied: No access rules matched

Error message:



Error Causes:
DataInLong resource group is a fully managed resource group. The outbound network segment of the resource group is not within the customer's VPC internal network segment. You need to open the security group for the DataInLong resource group.
Please authorize the CHDFS permission ID for the integration resource group at the CHDFS mount point.



Solution:
Open the page: API 3.0 Explorer and fill in the parameters, where MountPointId is the customer's CHDFS mount point and AccessGroupIds.N are the DataInLong resource group's CHDFS permission IDs (Note that different regions have different permission IDs).



DataInLong resource group CHDFS permission ID and region mapping table:
Region
DataInLong resource group CHDFS permission ID
Beijing
ag-wgbku4no
Guangzhou
ag-x1bhppnr
Shanghai
ag-xnjfr9d3
Singapore
ag-phxtv0ah
USA Silicon Valley
ag-tgwl8bca
Virginia
ag-esxpwxjn