mgr/cephadm: Config parameter to set the max number of OSDs to upgrade in single iteration

Fixes: https://tracker.ceph.com/issues/72652
Signed-off-by: Shweta Bhosale <[email protected]>

Author: ShwetaBhosale1

src/pybind/mgr/cephadm/module.py

@@ -401,6 +401,12 @@ class CephadmOrchestrator(orchestrator.Orchestrator, MgrModule,
             default=10,
             desc='max number of osds that will be drained simultaneously when osds are removed'
         ),
+        Option(
+            'max_parallel_osd_upgrades',
+            type='int',
+            default=16,
+            desc='Maximum number of OSD daemons upgraded in parallel.'
+        ),
         Option(
             'service_discovery_port',
             type='int',
@@ -585,6 +591,7 @@ def __init__(self, *args: Any, **kwargs: Any):
             self.secure_monitoring_stack = False
             self.apply_spec_fails: List[Tuple[str, str]] = []
             self.max_osd_draining_count = 10
+            self.max_parallel_osd_upgrades = 16
             self.device_enhanced_scan = False
             self.inventory_list_all = False
             self.cgroups_split = True

src/pybind/mgr/cephadm/services/cephadmservice.py

@@ -483,7 +483,7 @@ def ok_to_stop_osd(
         r = HandleCommandResult(*self.mgr.mon_command({
             'prefix': "osd ok-to-stop",
             'ids': osds,
-            'max': 16,
+            'max': self.mgr.max_parallel_osd_upgrades,
         }))
         j = None
         try: