Ceph » Orchestrator

This appears to be an issue with the "created" field changing, which should not affect equality in this case

We have tried to look up in the code snippet that is generating the log message as below.
~~~
The code is here: mgr/cephadm/inventory.py:
    def devices_changed(self, host: str, b: List[inventory.Device]) -> bool:
        a = self.devices[host]
        if len(a) != len(b):
            return True
        aj = {d.path: d.to_json() for d in a}
        bj = {d.path: d.to_json() for d in b}
        if aj != bj:
            self.mgr.log.info("Detected new or changed devices on %s" % host)
            return True
        return False
~~~

And while dumping the values of both aj & bj variables, observed that the difference is only for the field "created" which is 30 mins.
     - This 30 mins is after which the above function is called coming from the configuration parameter mgr/cephadm/device_cache_timeout

~~~
aj: {'/dev/sdX': {'ceph_device': None, 'rejected_reasons': [], 'available': True, 'path': '/dev/sdX', 'sys_api': {'human_readable_size': '10.00 GB', 'locked': 0, 'model': 'QEMU HARDDISK', 'nr_requests': '256', 'partitions': {}, 'path': '/dev/sdX', 'removable': '0', 'rev': '2.5+', 'ro': '0', 'rotational': '1', 'sas_address': '', 'sas_device_handle': '', 'scheduler_mode': 'mq-deadline', 'sectors': 0, 'sectorsize': '512', 'size': 10737418240.0, 'support_discard': '4096', 'vendor': 'QEMU'}, 'created': '2022-10-20T01:07:32.604710Z', 'lvs': [], 'human_readable_type': 'hdd', 'device_id': 'QEMU_QEMU_HARDDISK_15bbXXXX-XXXX-40e8-XXXX-946a21dXXXXXX', 'lsm_data': {}}} 
-------------------------------------------------
bj: {'/dev/sdX': {'ceph_device': None, 'rejected_reasons': [], 'available': True, 'path': '/dev/sdX', 'sys_api': {'human_readable_size': '10.00 GB', 'locked': 0, 'model': 'QEMU HARDDISK', 'nr_requests': '256', 'partitions': {}, 'path': '/dev/sdX', 'removable': '0', 'rev': '2.5+', 'ro': '0', 'rotational': '1', 'sas_address': '', 'sas_device_handle': '', 'scheduler_mode': 'mq-deadline', 'sectors': 0, 'sectorsize': '512', 'size': 10737418240.0, 'support_discard': '4096', 'vendor': 'QEMU'}, 'created': '2022-10-20T01:38:30.355023Z', 'lvs': [], 'human_readable_type': 'hdd', 'device_id': 'QEMU_QEMU_HARDDISK_15bbXXXX-XXXX-40e8-XXXX-946a21dXXXXX', 'lsm_data': {}}}
~~~