I added host.lb.check.interval = 0 to all agent.properties and restarted the
cloudstack-agent
The following is the connection status of the agent after reboot.
mysql> select host.id ,host.name,host.mgmt_server_id,host.status,mshost.name
from host,mshost where host.mgmt_server_id=mshost.msid;
+----+------------------------------------+----------------+--------+----------+
| id | name | mgmt_server_id | status | name |
+----+------------------------------------+----------------+--------+----------+
| 1 | test-ceph-node01.cs2cloud.internal | 2200502468634 | Up | acs-mn01 |
| 3 | s-8-VM | 2200502468634 | Up | acs-mn01 |
| 5 | test-ceph-node03.cs2cloud.internal | 2200502468634 | Up | acs-mn01 |
| 2 | v-9-VM | 2199950196764 | Up | acs-mn02 |
| 4 | test-ceph-node02.cs2cloud.internal | 2199950196764 | Up | acs-mn02 |
| 6 | test-ceph-node04.cs2cloud.internal | 2199950196764 | Up | acs-mn02 |
+----+------------------------------------+----------------+--------+----------+
6 rows in set (0.00 sec)
2019-07-18 15:10 Forced power off to close acs-mn02
wait....................................
After the 15th minute (2019-07-18 15:26:23), the agent found that the
management node failed and began to switch.
So, add host.lb.check.interval=0 to agent. properties doesn't solve the problem.
Below is the log
2019-07-18 15:26:23,414 DEBUG [utils.nio.NioConnection]
(Agent-NioConnectionHandler-1:null) (logid:) Location 1: Socket
Socket[addr=/172.17.1.142,port=8250,localport=33190] closed on read. Probably
-1 returned: No route to host
2019-07-18 15:26:23,416 DEBUG [utils.nio.NioConnection]
(Agent-NioConnectionHandler-1:null) (logid:) Closing socket
Socket[addr=/172.17.1.142,port=8250,localport=33190]
2019-07-18 15:26:23,417 DEBUG [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) Clearing watch list: 2
2019-07-18 15:26:23,417 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) Lost connection to host: 172.17.1.142. Attempting reconnection while
we still have 0 commands in progress.
2019-07-18 15:26:23,420 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) NioClient connection closed
2019-07-18 15:26:23,420 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) Reconnecting to host:172.17.1.142
2019-07-18 15:26:23,420 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) Connecting to 172.17.1.142:8250
2019-07-18 15:26:26,427 ERROR [utils.nio.NioConnection] (Agent-Handler-2:null)
(logid:) Unable to initialize the threads.
java.net.NoRouteToHostException: No route to host
at sun.nio.ch.Net.connect0(Native Method)
at sun.nio.ch.Net.connect(Net.java:454)
at sun.nio.ch.Net.connect(Net.java:446)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
at com.cloud.utils.nio.NioClient.init(NioClient.java:56)
at com.cloud.utils.nio.NioConnection.start(NioConnection.java:95)
at com.cloud.agent.Agent.reconnect(Agent.java:517)
at com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1091)
at com.cloud.utils.nio.Task.call(Task.java:83)
at com.cloud.utils.nio.Task.call(Task.java:29)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
2019-07-18 15:26:26,432 INFO [utils.exception.CSExceptionErrorCode]
(Agent-Handler-2:null) (logid:) Could not find exception:
com.cloud.utils.exception.NioConnectionException in error code list for
exceptions
2019-07-18 15:26:26,432 WARN [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) NIO Connection Exception
com.cloud.utils.exception.NioConnectionException: No route to host
2019-07-18 15:26:26,432 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) Attempted to connect to the server, but received an unexpected
exception, trying again...
2019-07-18 15:26:26,432 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) NioClient connection closed
2019-07-18 15:26:31,433 INFO [cloud.agent.Agent] (Agent-Handler-2:null)
(logid:) Reconnecting to host:172.17.1.141
2019-07-18 15:26:31,434 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) Connecting to 172.17.1.141:8250
2019-07-18 15:26:31,435 INFO [utils.nio.Link] (Agent-Handler-2:null) (logid:)
Conf file found: /etc/cloudstack/agent/agent.properties
2019-07-18 15:26:31,545 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) SSL: Handshake done
2019-07-18 15:26:31,546 INFO [utils.nio.NioClient] (Agent-Handler-2:null)
(logid:) Connected to 172.17.1.141:8250
2019-07-18 15:26:31,564 DEBUG [kvm.resource.LibvirtConnection]
(Agent-Handler-1:null) (logid:) Looking for libvirtd connection at:
qemu:///system
发件人: Nicolas Vazquez<mailto:[email protected]>
发送时间: 2019年7月18日 12:48
收件人: [email protected]<mailto:[email protected]>;
[email protected]<mailto:[email protected]>
主题: Re: Agent LB for CloudStack failed
Thanks,
I suspect the culprit is the background task trying to reconnect to the
preferred host (which runs every 60 seconds).
I would suggest disabling the background task by setting the interval to 0. As
you do not want to change your 'host' global configuration to propagate a new
list to the agents, you should do it this way:
- Add this line to agent.properties: host.lb.check.interval=0
- Restart the agent
Please let me know if this fixes your issue.
Regards,
Nicolas Vazquez
________________________________
From: li jerry <[email protected]>
Sent: Thursday, July 18, 2019 12:00 AM
To: [email protected] <[email protected]>;
[email protected] <[email protected]>
Subject: 答复: Agent LB for CloudStack failed
Hi Nicolas
test-ceph-node01
[root@test-ceph-node01 ~]# cat /etc/cloudstack/agent/agent.properties
#Storage
#Wed Jul 17 10:39:18 CST 2019
workers=5
guest.network.device=br0
private.network.device=br0
port=8250
resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
pod=1
zone=1
hypervisor.type=kvm
guid=88ca642a-e319-3369-b2c9-39c2b2bddc7c
public.network.device=br0
cluster=1
local.storage.uuid=ec28176f-a3db-4383-90c8-6dcdbc45c3e0
keystore.passphrase=O8VdcZqBwWMMxwk2
domr.scripts.dir=scripts/network/domr/kvm
LibvirtComputingResource.id=1
host=172.17.1.141,172.17.1.142@roundrobin
this is test-ceph-node02
[root@test-ceph-node02 ~]# cat /etc/cloudstack/agent/agent.properties
#Storage
#Wed Jul 17 10:58:23 CST 2019
guest.network.device=br0
workers=5
private.network.device=br0
port=8250
resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
pod=1
zone=1
guid=649cbe62-dcac-36ae-a62c-699f0e0b8af1
hypervisor.type=kvm
cluster=1
public.network.device=br0
local.storage.uuid=2fc2f796-0614-40cf-bfdf-37a9429520fb
domr.scripts.dir=scripts/network/domr/kvm
keystore.passphrase=vB48rgCk58vNJC6N
host=172.17.1.142,172.17.1.141@roundrobin
LibvirtComputingResource.id=4
test-ceph-node03
[root@test-ceph-node03 ~]# cat /etc/cloudstack/agent/agent.properties
#Storage
#Wed Jul 17 10:39:18 CST 2019
guest.network.device=br0
workers=5
private.network.device=br0
port=8250
resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
pod=1
zone=1
hypervisor.type=kvm
guid=4d3742c4-8678-3f21-a841-c1ffa32d0a8d
public.network.device=br0
cluster=1
local.storage.uuid=31ee15cf-b3b2-4387-b081-7c47971b9e68
keystore.passphrase=ACgs24DnBgYkORvh
domr.scripts.dir=scripts/network/domr/kvm
LibvirtComputingResource.id=5
host=172.17.1.141,172.17.1.142@roundrobin
test-ceph-node04
[root@test-ceph-node04 ~]# cat /etc/cloudstack/agent/agent.properties
#Storage
#Wed Jul 17 10:58:22 CST 2019
guest.network.device=br0
workers=5
private.network.device=br0
port=8250
resource=com.cloud.hypervisor.kvm.resource.LibvirtComputingResource
pod=1
zone=1
hypervisor.type=kvm
guid=bfd4b7ba-fd5f-365d-b4d8-a6e8e7c78c0c
public.network.device=br0
cluster=1
local.storage.uuid=2d5004ff-37b1-4f66-bff0-e71ac211f1da
keystore.passphrase=r3D4upcAOdWbwE9p
domr.scripts.dir=scripts/network/domr/kvm
LibvirtComputingResource.id=6
host=172.17.1.142,172.17.1.141@roundrobin
发件人: Nicolas Vazquez<mailto:[email protected]>
发送时间: 2019年7月18日 10:56
收件人: [email protected]<mailto:[email protected]>;
[email protected]<mailto:[email protected]>
主题: Re: Agent LB for CloudStack failed
Hi Jerry,
I'll request some additional information. Can you provide me with the value
stored on agent.properties for 'host' property on each KVM host? I suspect that
the global setting has not been propagated to the agents, as it is trying to
reconnect instead of connecting to the next management server once it is down.
Regards,
Nicolas Vazquez
________________________________
From: li jerry <[email protected]>
Sent: Monday, July 15, 2019 10:20 PM
To: [email protected] <[email protected]>;
[email protected] <[email protected]>
Subject: Agent LB for CloudStack failed
Hello everyone
My kvm Agent LB on 4.11.2/4.11.3 failed. When the preferred managment node is
forced to power off, the agent will not immediately connect to the second
management node.After 15 minutes, the agent issues a "No route to host" error
and connects to the second management node.
management node:
acs-mn01,172.17.1.141
acs-mn02,172.17.1.142
mysql db node:
acs-db01
kvmm agent node:
test-ceph-node01
test-ceph-node02
test-ceph-node03
test-ceph-node04
global seting
host=172.17.1.142,172.17.1.141
indirect.agent.lb.algorithm=roundrobin
indirect.agent.lb.check.interval=60
Partial agnet logs:
2019-07-15 23:22:39,340 DEBUG [cloud.agent.Agent] (UgentTask-5:null) (logid:)
Sending ping: Seq 1-19: { Cmd , MgmtId: -1, via: 1, Ver : v1, Flags: 11,
[{"com.cloud.agent.api.PingRoutingWithNwGroupsCommand":{"newGroupStates":{},"_hostVmStateReport":{},"_gatewayAccessible":true,"_vnetAccessible":true,"hostType
":"Routing","hostId":1,"wait":0}}] }
2019-07-15 23:23:09,960 DEBUG [utils.nio.NioConnection]
(Agent-NioConnectionHandler-1:null) (logid:) Location 1: Socket
Socket[addr=/172.17.1.142,port=8250,localport= 34854] closed on read. Probably
-1 returned: No route to host
2019-07-15 23:23:09,960 DEBUG [utils.nio.NioConnection]
(Agent-NioConnectionHandler-1:null) (logid:) Closing socket
Socket[addr=/172.17.1.142,port=8250,localport=34854]
2019-07-15 23:23:09,961 DEBUG [cloud.agent.Agent] (Agent-Handler-4:null)
(logid:a4e4de49) Clearing watch list: 2
2019-07-15 23:23:09,962 INFO [cloud.agent.Agent] (Agent-Handler-4:null)
(logid:a4e4de49) Lost connection to host: 172.17.1.142. Attempting reconnection
while we still have 0 commands in Progress.
2019-07-15 23:23:09,963 INFO [utils.nio.NioClient] (Agent-Handler-4:null)
(logid:a4e4de49) NioClient connection closed
2019-07-15 23:23:09,964 INFO [cloud.agent.Agent] (Agent-Handler-4:null)
(logid:a4e4de49) Reconnecting to host:172.17.1.142
2019-07-15 23:23:09,964 INFO [utils.nio.NioClient] (Agent-Handler-4:null)
(logid:a4e4de49) Connecting to 172.17.1.142:8250
2019-07-15 23:23:12,972 ERROR [utils.nio.NioConnection] (Agent-Handler-4:null)
(logid:a4e4de49) Unable to initialize the threads.
java.net.NoRouteToHostException: No route to host
At sun.nio.ch.Net.connect0(Native Method)
At sun.nio.ch.Net.connect(Net.java:454)
At sun.nio.ch.Net.connect(Net.java:446)
At sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:648)
At com.cloud.utils.nio.NioClient.init(NioClient.java:56)
At com.cloud.utils.nio.NioConnection.start(NioConnection.java:95)
At com.cloud.agent.Agent.reconnect(Agent.java:517)
At com.cloud.agent.Agent$ServerHandler.doTask(Agent.java:1091)
At com.clo
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