#Postgres 14 sharding manual
SystemĪdministrators can still use manual failover commands to promote a standby even if it results in transaction Means that the system may be unavailable for writes even though some servers are available.
Values of off and local may be lost on fail over, but will not be blocked by replication delays). Per transaction using PostgreSQL’s synchronous_commit setting. Transactions that may have returned a successful commit status to client (clients can change the behavior When in synchronous mode a standby will not be promoted unless it is certain that the standby contains all Remain in a “forked timeline” on the primary, and are effectively unrecoverable (the data is still there,īut recovering it requires a manual recovery effort by data recovery specialists). Any transactions that have not been replicated to that standby Will automatically be promoted to primary. When the primary server fails or becomes unavailable for any other reason a sufficiently healthy standby When in asynchronous mode the cluster is allowed to lose some committed transactions. The replication mode applied to the whole cluster. Both clusterIPs and ipFamilies are governed by the ipFamilyPolicy field. These families must correspond to the values of the clusterIPs field, if specified. This field may hold a maximum of two entries (dual-stack families, in either order). This field will be wiped when updating a Service to type ExternalName. This field only applies to Services of types ClusterIP, NodePort, and LoadBalancer, and does apply to “headless” services. This field is conditionally mutable: it allows for adding or removing a secondary IP family, but it does not allow changing the primary IP family of the Service.
If this field is specified manually, the requested family is available in the cluster, and ipFamilyPolicy allows it, it will be used otherwise creation of the service will fail. This field is usually assigned automatically based on cluster configuration and the ipFamilyPolicy field. IPFamilies is a list of IP families (e.g.
Please help improve it by filing issues or pull requests. Recovering PGDATA From an Existing Volume
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