> [!WalReceiverExit] > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_ipc_walreceiverexit.png"></td><td><b>Wait Category</b></td><td>IPC</td></tr><tr><td><b>Mechanism</b></td><td><code>WalReceiver</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Distributed/Redistribute">Redistribute</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3"><b>Replication Lifecycle Synchronization Barrier</b>. It is most common during server shutdown or when the standby must switch to a new timeline (e.g., after a primary failover).</td></tr></table>