Error on starting application server

RE: Error on starting application server

Eunnel — Fri, 07 Oct 2022 02:16:52 GMT

Thank you Dimitris. It's working now.

RE: Error on starting application server

Dimitris Soulovaris — Thu, 06 Oct 2022 14:42:22 GMT

In the custom.properties file, you should put the same JNDI name that you configured before in tomcatResources.xml file. The names should match. So in your case, the config should be:

conf.data.APPIAN_DATA_SOURCE=jdbc/MySqlDataSource

<Resource name="jdbc/MySqlDataSource"

RE: Error on starting application server

Eunnel — Thu, 06 Oct 2022 13:00:05 GMT

Yes, I was able to do that and it removed the error on java.sql.SQLException: Unable to load class.
For the error javax.naming.NameNotFoundException: Name [appian223Primary] is not bound in this Context. Unable to find [appian223Primary]. It is still there.

RE: Error on starting application server

Eunnel — Thu, 06 Oct 2022 12:58:04 GMT

Yes, I just did that to remove the error java.sql.SQLException: Unable to load.

But the issue is still there.

[wait-for-component] ERROR com.appiancorp.common.startup.healthcheck.PrimaryRdbmsHealthCheck - javax.naming.NameNotFoundException: Name [appian223Primary] is not bound in this Context. Unable to find [appian223Primary].
[wait-for-component] INFO com.appiancorp.common.startup.WaitForStatefulComponents - Waiting for Appian component Primary datasource RDBMS to be healthy...
[wait-for-component] INFO com.appiancorp.common.startup.WaitForStatefulComponents - Waiting for Appian component Primary datasource RDBMS to be healthy...
[wait-for-component] INFO com.appiancorp.common.startup.WaitForStatefulComponents - Waiting for Appian component Primary datasource RDBMS to be healthy...
[wait-for-component] INFO com.appiancorp.common.startup.WaitForStatefulComponents - Waiting for Appian component Primary datasource RDBMS to be healthy...

RE: Error on starting application server

Dimitris Soulovaris — Thu, 06 Oct 2022 12:53:56 GMT

Based on the documentation the driverClassName config should be:

driverClassName="com.mysql.jdbc.Driver"

and in your config file is:

driverClassName="com.mysql.cj.jdbc.Driver"

Check your logs also:

Oct 05, 2022 2:56:02 AM org.apache.tomcat.jdbc.pool.ConnectionPool init
SEVERE: Unable to create initial connections of pool.
java.sql.SQLException: Unable to load class: com.mysql.cj.jdbc.Driver from ClassLoader:java.net.URLClassLoader@4a574795;ClassLoader:AppianWebappClassLoader
context: suite
delegate: false
----------> Parent Classloader:
java.net.URLClassLoader@4a574795

at org.apache.tomcat.jdbc.pool.PooledConnection.connectUsingDriver(PooledConnection.java:316)

RE: Error on starting application server

Eunnel — Thu, 06 Oct 2022 12:46:09 GMT

Yes, I did those steps.

tomcat resources xml:

<Resource name="jdbc/MySqlDataSource"
factory="com.appiancorp.tomcat.datasource.EncodedPasswordDataSourceFactory"
type="javax.sql.DataSource"
driverClassName="com.mysql.cj.jdbc.Driver"
url="jdbc:mysql://practice-aws-db.cpkrckzng6iv.us-east-1.rds.amazonaws.com:3306/appian223Primary?useOldAliasMetadataBehavior=true"
username="username here"
password="encoded password here"
initialSize="5"
maxActive="200"
defaultTransactionIsolation="READ_COMMITTED"
maxWait="30000"
minIdle="5"
minEvictableIdleTimeMillis="90000"
timeBetweenEvictionRunsMillis="450000"
validationQuery="SELECT 1"
testOnBorrow="true"
/>

custom.properties:

######################
#### Data Sources ####
######################

## Appian must have a dedicated data source. Set the value to the JNDI name of
## the data source that will be used as the Appian data source.
## Note: This data source must point to a separate tablespace than any listed
## in the conf.data.datasources configuration.
conf.data.APPIAN_DATA_SOURCE=jdbc/appian223Primary
## Comma-separated list of JNDI names of data sources on the application server
## that will be used to store business data. This list is used by the Query
## Database smart service and Data Stores.
#conf.data.datasources=

for the tomcat I just the driverClassName com.mysql.cj.jdbc.Driver to com.mysql.jdbc.Driver to remove one of the error above.

RE: Error on starting application server

Dimitris Soulovaris — Thu, 06 Oct 2022 12:36:17 GMT

Did you configure the connection between Appian and the server where the DB is installed?

Here is what I mean:

https://docs.appian.com/suite/help/22.3/Configuring_Relational_Databases.html#mysql

For setting up the primary database you have to follow exactly what is mentioned here in the "RDBMS Configuration" section:

https://docs.appian.com/suite/help/22.3/Windows_Installation_Guide.html#rdbms-configurations

Don't forget to do all the configurations in the REPO location and then deploy them to your Appian instance.

RE: Error on starting application server

Eunnel — Thu, 06 Oct 2022 12:11:51 GMT

logs: community.appian.com/.../tomcatstdoutlogs.txt

for DB I hosted it in amazon RDS

Schema: appian223Primary
charset: utf8mb4
collation: utf8mb4_unicode_ci

RE: Error on starting application server

Dimitris Soulovaris — Thu, 06 Oct 2022 11:44:14 GMT

Can you post the new logs and the configuration of the Appian primary DB if possible..

RE: Error on starting application server

Eunnel — Thu, 06 Oct 2022 11:24:55 GMT

Hi Dimitris, I was using MySQL 8.0.30 and Connector/J 8.0.30. Then, I change to Connector/J 5.1.49. After changing and restarting the process, the issue is still the same.

RE: Error on starting application server

Dimitris Soulovaris — Thu, 06 Oct 2022 09:49:40 GMT

Which relational database and jdbc driver version are you using? I think you have an unsupported driver installed and the app server can't connect with the db. Check here the supported DB's and drivers:

https://docs.appian.com/suite/help/22.3/System_Requirements.html#databases