In data_engine log:
Aug 13 01:35:16:421 [25724] de: Metric id to be changed from M25223241FC173E957059DDCAE9802C61 to M8E3992C2CDDD141FDECE73211C3DB8F1 for qos=QOS_NET_CONNECT_PACKETLOSS source=xx target=yy:packet_loss robot=zzprobe=net_connect queue size= 0
...
Aug 13 01:35:16:422 [25724] de: Metric id to be changed from M8E3992C2CDDD141FDECE73211C3DB8F1 to M71A8859A99BB7CE1CD1C7ADDD87EB623 for qos=QOS_NET_CONNECT_PACKETLOSS source=xx target=yy:packet_loss robot=zz probe=net_connect queue size= 1
...
Aug 13 01:35:16:422 [25724] de: Metric id to be changed from M71A8859A99BB7CE1CD1C7ADDD87EB623 to M25223241FC173E957059DDCAE9802C61 for qos=QOS_NET_CONNECT_PACKETLOSS source=xx target=yy:packet_loss robot=zz probe=net_connect queue size= 2
...
Aug 13 01:35:16:704 [23824] de: [QOS Metric] has connected to database
Aug 13 01:35:16:705 [23824] de: qos_metric_thread - updated qos object with table_id 42 with metric id 'M8E3992C2CDDD141FDECE73211C3DB8F1' time used open db: 13 ms, execute cmd: 1 ms
Aug 13 01:35:16:707 [23824] de: qos_metric_thread - updated qos object with table_id 42 with metric id 'M71A8859A99BB7CE1CD1C7ADDD87EB623' time used open db: 0 ms, execute cmd: 1 ms
Aug 13 01:35:16:708 [23824] de: qos_metric_thread - updated qos object with table_id 42 with metric id 'M25223241FC173E957059DDCAE9802C61' time used open db: 0 ms, execute cmd: 1 ms
Client application 'data_engine [QOS Metric]' will update the s_qos_data for the same table_id:
update s_qos_data set ci_metric_id = 'M8E3992C2CDDD141FDECE73211C3DB8F1' where table_id = 42;
update s_qos_data set ci_metric_id = 'M71A8859A99BB7CE1CD1C7ADDD87EB623' where table_id = 42;
update s_qos_data set ci_metric_id = 'M25223241FC173E957059DDCAE9802C61' where table_id = 42;
data_engine probe 8.50 and later with parameter 'update_metric_id' set to 'yes'
net_connect 3.33 with packet loss metric enabled
deploy net_connect 3.37.
drop niscache folder and restart nimbus service on the robot server to which net_connect probe is deployed.
Check data_engine at log level 5, messages as in the description will not occur again. Profile on the DB table s_qos_data, the update statements should not be seen repeatedly for net_connect probe.