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From Rohit Yadav <rohit.ya...@shapeblue.com>
Subject Re: CS 4.9 NIO Selector wait time PR-1601
Date Wed, 24 Aug 2016 13:46:51 GMT
The PR and fix already exists in 4.9.0 release. Please make sure to upgrade all of your management
server(s) and KVM agents and then also restart them after the upgrade.


If you are seeing SSL handshake failures, it could be due to network or security issue and
most likely due to mismatch between CloudStack mgmt server and KVM agent version.


Regards.

________________________________
From: Will Stevens <williamstevens@gmail.com>
Sent: 24 August 2016 18:17:17
To: dev@cloudstack.apache.org; Rohit Yadav
Subject: Re: CS 4.9 NIO Selector wait time PR-1601


That PR is already merged, so you don't have to do anything to get that code, you already
have it.

@rohit, can you review this?  I think this is a similar to the issue Simon reported earlier.

Will

On Aug 24, 2016 6:56 AM, "fanfarlo" <fanfarlo2@gmail.com<mailto:fanfarlo2@gmail.com>>
wrote:
hi all

We have the following environment:
- OS: Debian 14.04 (hypervisors and management)
- 4 KVM Hosts
- Cloudstack Release 4.9 with local database

Since we upgraded to Release 4.9 the KVM hosts no longer connect to the
management Server. Upgrade procedure was followed as described:
http://docs.cloudstack.apache.org/projects/cloudstack-release-notes/en/4.9.0/upgrade/upgrade-4.8.html


On the KVM hosts we have the following error message:
/2016-08-24 10:42:49,678 INFO  [utils.exception.CSExceptionErrorCode]
(main:null) (logid:) Could not find exception:
com.cloud.utils.exception.NioConnectionException in error code list for
exceptions
2016-08-24 10:42:49,678 WARN  [cloud.agent.Agent] (main:null) (logid:)
NIO Connection Exception
com.cloud.utils.exception.NioConnectionException: SSL Handshake failed
while connecting to host: 10.100.12.10 port: 8250
2016-08-24 10:42:49,678 INFO  [cloud.agent.Agent] (main:null) (logid:)
Attempted to connect to the server, but received an unexpected
exception, trying again...
2016-08-24 10:42:54,679 INFO  [utils.nio.NioClient] (main:null) (logid:)
Connecting to 10.100.12.10:8250<http://10.100.12.10:8250>
2016-08-24 10:42:54,684 WARN  [utils.nio.Link] (main:null) (logid:) This
SSL engine was forced to close inbound due to end of stream.
2016-08-24 10:42:54,684 ERROR [utils.nio.NioClient] (main:null) (logid:)
SSL Handshake failed while connecting to host: 10.100.12.10 port: 8250
2016-08-24 10:42:54,685 ERROR [utils.nio.NioConnection] (main:null)
(logid:) Unable to initialize the threads.
java.io.IOException: SSL Handshake failed while connecting to host:
10.100.12.10 port: 8250
    at com.cloud.utils.nio.NioClient.init(NioClient.java:67)
    at com.cloud.utils.nio.NioConnection.start(NioConnection.java:88)
    at com.cloud.agent.Agent.start(Agent.java:237)
    at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:399)
    at
com.cloud.agent.AgentShell.launchAgentFromClassInfo(AgentShell.java:367)
    at com.cloud.agent.AgentShell.launchAgent(AgentShell.java:351)
    at com.cloud.agent.AgentShell.start(AgentShell.java:456)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at
org.apache.commons.daemon.support.DaemonLoader.start(DaemonLoader.java:243)
2016-08-24 10:42:54,685 INFO  [utils.exception.CSExceptionErrorCode]
(main:null) (logid:) Could not find exception:
com.cloud.utils.exception.NioConnectionException in error code list for
exceptions
2016-08-24 10:42:54,685 WARN  [cloud.agent.Agent] (main:null) (logid:)
NIO Connection Exception
com.cloud.utils.exception.NioConnectionException: SSL Handshake failed
while connecting to host: 10.100.12.10 port: 8250
2016-08-24 10:42:54,686 INFO  [cloud.agent.Agent] (main:null) (logid:)
Attempted to connect to the server, but received an unexpected
exception, trying again.../


Port is open on the management server, there is no firewall in between.
We found that there was a bug report here:
https://issues.apache.org/jira/browse/CLOUDSTACK-9348. There is a PR
changing the NIO Selector wait time:
https://github.com/apache/cloudstack/pull/1601 which was merged into
master branch.

Since we installed Release 4.9 we probably need to patch the
NioConection.class as described in PR1601 , right?

kvm03# unzip -v /usr/share/cloudstack-agent/lib/cloud-utils-4.9.0.jar  |
grep NioConnection
    3923  Defl:N     1778  55% 2016-08-02 09:28 05aaf7d5
com/cloud/utils/nio/NioConnection$1.class
     881  Defl:N      495  44% 2016-08-02 09:28 e378984c
com/cloud/utils/nio/NioConnection$ChangeRequest.class
   15410  Defl:N     7130  54% 2016-08-02 09:28 b3281f5a
com/cloud/utils/nio/NioConnection.class
    1134  Defl:N      584  49% 2016-08-02 09:28 8d5cb4a8
com/cloud/utils/exception/NioConnectionException.class

Due to a lack of java expertise we have some basic questions:
- Is there a patched jar file available ? public build server?
- Do we need to create the jar from sources ? procedure?
- How do we apply the patch ?

many thanks!
fanfarlo

rohit.yadav@shapeblue.comĀ 
www.shapeblue.com
53 Chandos Place, Covent Garden, London  WC2N 4HSUK
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