We have java app which uses Appian APIs to connect to one of our Appian servers

senthilvg over 11 years ago

We have java app which uses Appian APIs to connect to one of our Appian servers and i observe the below connection failures occationally when trying to retrieve Appian data.

Any common cause why this could happen? Any help would be appreciated!

20130326 09:51:18,829 EDT INFO com.appiancorp.kougar.driver.ipc.IpcConnection [Timer-0] - Open IpcConnection imappl09dev.fmrco.com:5030
20130326 09:51:18,831 EDT INFO com.appiancorp.kougar.driver.ipc.IpcConnection [Timer-0] - Open connection imappl09dev.fmrco.com:5030: connected
20130326 09:51:18,831 EDT INFO com.appiancorp.kougar.driver.ipc.IpcConnection [Timer-0] - Open connection imappl09dev.fmrco.com:5030: initializing
20130326 09:51:18,832 EDT WARN com.appiancorp.kougar.driver.ipc.IpcConnection [Timer-0] - java.io.EOFException: there is a problem with the database server: imappl09dev.fmrco.com:5030
java.io.EOFException: there is a problem with the database server: imappl09dev.fmr...

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0 senthilvg over 11 years ago

...co.com:5030
at com.appiancorp.kougar.driver.ipc.IpcConnection.read(IpcConnection.java:237)
at com.appiancorp.kougar.driver.ipc.IpcConnection.readMessage(IpcConnection.java:208)
at com.appiancorp.kougar.driver.ipc.IpcConnection.get(IpcConnection.java:155)
at com.appiancorp.kougar.driver.ipc.IpcConnectionConfiguration.isPrimary(IpcConnectionConfiguration.java:190)
at com.appiancorp.kougar.driver.pooling.PoolManager.activatePool(PoolManager.java:360)
at com.appiancorp.kougar.driver.pooling.PoolManager.access$100(PoolManager.java:51)
at com.appiancorp.kougar.driver.pooling.PoolManager$CheckInvalidConnections.run(PoolManager.java:83)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
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0 Sathya Srinivasan
Appian Employee
over 11 years ago

Are your Appian engines running? use $APPIAN_HOME/server/_scripts/diagnostics.sh {bat} to make sure your engines are online.
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0 Sathya Srinivasan
Appian Employee
over 11 years ago

If the engines are running, you may also want to make sure there are no connectivity issues between your client (i.e. where you are running this code) and the server hosting the Appian engines. Check for Firewall restrictions etc.,
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