问题
Trying to get OpsCenter 5.2.2 after fresh install to pick up data from two new clusters. Both cluster are freshly installed and runs fine:
[root@d1r1n1 ~]# metatool status
Note: Ownership information does not include topology; for complete information, specify a keyspace
Datacenter: OPA3
================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 10.45.68.13 136.01 KB 1 7.1% 692e6062-388d-49f4-93de-380405e1495f R3.3.16
UN 10.45.68.12 150.64 KB 1 7.1% 20534507-1924-4240-a980-d4296566d48d R3.3.16
UN 10.45.68.14 136.34 KB 1 7.1% 6bcdf08f-f49e-438e-b102-ac1b132cd3af R3.3.16
UN 10.45.68.9 155.83 KB 1 7.1% 5984016d-7ab4-4cfc-99a7-1fb44e2525d5 R3.3.16
UN 10.45.68.8 140.67 KB 1 7.1% bea12c79-5856-4dd6-8c2e-e2498229ab1e R3.3.16
UN 10.45.68.11 150.44 KB 1 7.1% 58082d4c-c5bb-42b2-abfc-472602e6fd3c R3.3.16
UN 10.45.68.10 155.61 KB 1 7.1% 489c3a11-2b7e-4dc0-b023-fca1b611d7d5 R3.3.16
UN 10.45.68.5 134.14 KB 1 7.1% b42e3bb5-d033-4cd2-9a4d-d68e12026403 R3.3.16
UN 10.45.68.4 136.04 KB 1 7.1% ad33485c-e4f8-40b8-804f-363ea326319c R3.3.16
UN 10.45.68.7 150.67 KB 1 7.1% 174040b9-ea42-43c2-88f2-26c18ebeef15 R3.3.16
UN 10.45.68.6 134.33 KB 1 7.1% 7da26426-a4d6-4d21-b1e9-ac2a5896a453 R3.3.16
UN 10.45.68.1 141.33 KB 1 7.1% 466832c8-95b7-4cd9-8ace-87624478f79a R3.3.16
UN 10.45.68.3 126.15 KB 1 7.1% 99a2332d-97d2-46e8-b93d-1986e7161789 R3.3.16
UN 10.45.68.2 126.69 KB 1 7.1% 03c62604-9a6f-42be-8d77-0a8f4113a307 R3.3.16
[root@d1r1n1 ~]# blobtool status
Note: Ownership information does not include topology; for complete information, specify a keyspace
Datacenter: OPA3
================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
-- Address Load Tokens Owns Host ID Rack
UN 10.45.68.13 104.56 KB 1 7.1% 103038fc-dce8-455b-84c4-5d1abee2a9d2 R3.3.16
UN 10.45.68.12 105 KB 1 7.1% fb24a3ff-69fc-47d6-b434-db6e00aaea98 R3.3.16
UN 10.45.68.14 105.05 KB 1 7.1% 776d8a1b-9f63-4a04-93fc-1cb8b3439997 R3.3.16
UN 10.45.68.9 121.56 KB 1 7.1% 3a8d9139-67af-4c14-bfb8-880517323e5b R3.3.16
UN 10.45.68.8 106.51 KB 1 7.1% c41e9965-2a27-45cb-aa3e-d9f9b59cbc98 R3.3.16
UN 10.45.68.11 119.31 KB 1 7.1% 7528c8f6-aa79-4776-8a98-5c2890f2cf3d R3.3.16
UN 10.45.68.10 119.29 KB 1 7.1% 12109e0b-e25e-45f1-b891-fe6debe91891 R3.3.16
UN 10.45.68.5 105.67 KB 1 7.1% 378a6f68-9014-4f04-9004-2cc1a0b607a9 R3.3.16
UN 10.45.68.4 117.05 KB 1 7.1% 7128ae20-186e-4b63-a284-4949e6596c11 R3.3.16
UN 10.45.68.7 106.6 KB 1 7.1% 165ade74-c5b2-4086-961c-8fe14a266379 R3.3.16
UN 10.45.68.6 106.63 KB 1 7.1% 744a6c72-b0fb-4db7-8582-a82a62ad74e5 R3.3.16
UN 10.45.68.1 113.92 KB 1 7.1% 3c4805f1-e606-450f-9c98-68b1ea7f9d4f R3.3.16
UN 10.45.68.3 116.47 KB 1 7.1% 6b0dc9fa-576f-4832-b16e-0051b0d6d48a R3.3.16
UN 10.45.68.2 101.05 KB 1 7.1% 2eb608f3-9499-4862-be0c-5154115ab4ea R3.3.16
[root@d1r1n1 ~]# alias | grep tool
alias blobtool='nodetool -h localhost -p 8081'
alias metatool='nodetool -h localhost -p 8082'
Defined my two clusters in OpsCenter only whenever data are send from the agents; I get this annoying warnings in /var/log/opscenter/opscenter.log:
2015-10-30 18:09:58+0100 [] WARN: Unable to find a matching cluster for node with IP d1r1n1; the message was {u'os-load': 0.040000000000000001}. This usually indicates that an OpsCenter agent is still running on an old node that was decommissioned or is part of a cluster that OpsCenter is no longer monitoring.
Wonder if the host name d1r1n1 instead of it's IP is an issue though:
[root@opsc opscenter]# dig +short d1r1n1
[root@opsc opscenter]# dig +short +search d1r1n1
10.45.68.1
Not sure why and how to fix this, hints are appreciated.
TIA!
Screen Dump of Overview Dashboard here!
来源：https://stackoverflow.com/questions/33441977/datastax-agents-unable-to-find-a-matching-cluster-for-node-with-ip