Error in Installing Distributed Environment

samb over 9 years ago

trying to test HA and following these steps:
1.start serverA suite
2.start serverB suite
3.start serverA jboss
4.start serverB jboss and the error is

09:46:01,325 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/suite]] (ServerService Thread Pool -- 63) JBWEB000287: Exception sending context initialized event to listener instance of class com.appiancorp.common.config.ConfigurationLoader: com.appiancorp.common.config.FatalConfigurationException: com.appiancorp.suiteapi.common.exceptions.AppianException: An unexpected error occurred while trying to load the keystore. (APNX-1-4210-005)
Caused by: java.io.IOException: Keystore was tampered with, or password was incorrect

so it seems when the serverA jboss is starting, it generates a keystore file in shared folder and also encrypts it in primary datasource of serverA, and when the serverB is starting the jboss it sees the keystore in shared folder and compares ...

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0 samb over 9 years ago

...it to primary datasource of serverB which is empty and throws the error

Caused by: java.io.IOException: Keystore was tampered with, or password was incorrect

any solutions? am I missing something in the configurations? thanks
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0 Mike Cichy
Appian Employee
over 9 years ago

Make sure the _admin/shared folder is shared between the two servers.
SIDE NOTE: We recommend other failover approaches than dual gateways. We find it to be costly both in hardware and maintenance cost for little additional uptime. Please review forum.appian.com/.../High_Availability_and_Disaster_Recovery_Configurations.html for other configurations.
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0 samb over 9 years ago

actually as you have suggested, the _admin/shared folder is shared between both servers but I think the main issue maybe that each server has its own primary datasource as localhost... could that be the issue?
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0 Mike Cichy
Appian Employee
over 9 years ago

Absolutely, there needs to be single db instance for the primary data source + keys need to be shared between app servers.
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0 samb over 9 years ago

thank you very much and to make sure that I got it all right, did you mean:
1. one db as primary datasource between both servers and _admin/shared be mounted on both servers as nfs? does it make a difference that one jboss instance starts before the other?
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0 Mike Cichy
Appian Employee
over 9 years ago

Correct.
It does not make a difference.
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0 samb over 9 years ago

thank you once again..
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