Export Script

Purpose

The Appian engines synchronously store write transactions in the Kafka component of the Internal Messaging Service as they are applied. For troubleshooting purposes it is sometimes useful to be able to look at the contents of the transaction log for an engine to see how many transactions were applied in a given time period, what types of transactions are flowing through the system, or what parameters were used in a particularly slow transaction. The export script outputs the contents of the transaction log in a machine-readable format for analysis by Appian Support.

Run this script when directed to do so by Appian Support as part of troubleshooting.

Location

<APPIAN_HOME>/services/bin/export.sh (.bat)

Options

Short Name	Long Name	Required	Meaning
-h	--help	No	Show usage information
-f	--from-transaction	No	Id of the first transaction to export (inclusive)
-o	--output-directory	No	Directory to write the export file to
-r	--raw	No	Export the entire transaction log in raw kafka data format
-t	--to-transaction	No	Id of the last transaction to export (inclusive)

Although none of the options are required, you must use either --from-transaction and --to-transaction to specify a transaction range or use the --raw option.

Usage

The export script takes as a parameter the name of a service for which to export transactions. One of: analytics00, analytics01, analytics02, channels, content, download-stats, execution00, execution01, execution02, forums, groups, notifications, notifications-email, portal, process-design.

export.sh groups --from-transaction 1 --to-transaction 100

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