> [!HashGrowBatchesRepartition] > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_ipc_hash_repartition.png"></td><td><b>Wait Category</b></td><td>IPC</td></tr><tr><td><b>Mechanism</b></td><td><code>HashGrowBatchesRepartition</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Joins/HashJoin">HashJoin</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/RAM">Memory</a>, <a href="Resources/CPU">CPU</a></td></tr><tr><td colspan="3">Synchronization stall during <b>Hash Table Expansion</b>. When the shared hash table for a parallel join grows too large for its current batches, workers must wait for each other to finish re-distributing (repartitioning) tuples into a larger number of batches.</td></tr></table>