> [!info] RecoveryWalStream > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_activity_recoverywalstream.png"></td><td><b>Wait Category</b></td><td>Activity</td></tr><tr><td><b>Mechanism</b></td><td><code>WaitForWALToArrive</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/Network">Network</a>, <a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3"><b>Standby Recovery Synchronization</b>. The standby replay process waits for new WAL data to arrive via the replication stream from the primary to keep up-to-date. (Analogized by a raccoon holding a wooden bucket, waiting patiently at the end of a long wooden aqueduct made of bamboo segments).</td></tr></table>