common_meta::peer

Trait PeerLookupService

Source 
pub trait PeerLookupService {
    // Required methods
    fn datanode<'life0, 'async_trait>(
        &'life0 self,
        id: DatanodeId,
    ) -> Pin<Box<dyn Future<Output = Result<Option<Peer>, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn flownode<'life0, 'async_trait>(
        &'life0 self,
        id: FlownodeId,
    ) -> Pin<Box<dyn Future<Output = Result<Option<Peer>, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn active_frontends<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<Peer>, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

PeerLookupService is a service that can lookup peers.

Required Methods§

Source

fn datanode<'life0, 'async_trait>( &'life0 self, id: DatanodeId, ) -> Pin<Box<dyn Future<Output = Result<Option<Peer>, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the datanode with the given id. It may return inactive peers.

Source

fn flownode<'life0, 'async_trait>( &'life0 self, id: FlownodeId, ) -> Pin<Box<dyn Future<Output = Result<Option<Peer>, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns the flownode with the given id. It may return inactive peers.

Source

fn active_frontends<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<Peer>, Error>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Returns all currently active frontend nodes that have reported a heartbeat within the most recent heartbeat interval from the in-memory backend.

Implementors§