Automations are not running or acquiring a lock. The automation log file is repeating the following message every few seconds:
WARN yyyy-MM-DD HH:mm:ss,SSS [<Automation Name> | <Automation Timestamp> | | {<Project<}][(connectall-flows) thread #nnnn - Split] org.apache.activemq.artemis.core.client: AMQ212054: Destination address=writeQ is blocked. If the system is configured to block make sure you consume messages on this configuration.
This can be caused if disk space usage rises above the configured disk space threshold in the broker service; by default this is 90%.
There are two options to resolve this.
1) Clear disk space until the used space falls below 90%
2) Reconfigure the broker service disk threshold to a higher value
To do this, edit <CONNECTALL_HOME>/Broker/connectall-broker/etc/broker.xml
Locate the line that reads <max-disk-usage>90</max-disk-usage>
Change 90 to a higher value
Save and restart the broker service