PD Recover is a disaster recovery tool of PD, used to recover the PD cluster which cannot start or provide services normally.
makecommand to compile and generate
This section describes how to recover a PD cluster which cannot start or provide services normally.
-alloc-id uint Specify a number larger than the allocated ID of the original cluster -cacert string Specify the path to the trusted CA certificate file in PEM format -cert string Specify the path to the SSL certificate file in PEM format -key string Specify the path to the SSL certificate key file in PEM format, which is the private key of the certificate specified by `--cert` -cluster-id uint Specify the Cluster ID of the original cluster -endpoints string Specify the PD address (default: "http://127.0.0.1:2379")
Obtain the Cluster ID and the Alloc ID from the current cluster.
Metadata Informationin the PD monitoring panel.
alloc-id requires a number larger than the current largest Alloc ID. If you fail to obtain the Alloc ID, you can make an estimate of a larger number according to the number of Regions and Stores in the cluster. Generally, you can specify a number that is several orders of magnitude larger.
Stop the whole cluster, clear the PD data directory, and restart the PD cluster.
Use PD Recover to recover and make sure that you use the correct
cluster-id and appropriate
When the recovery success information is prompted, restart the whole cluster.