KB-1665 TIME_SKEW error in application server and engine logs


The application server log contains the following error:

com.appiancorp.kougar.driver.exceptions.Signal: TIME_SKEW@ki=-519788690@ti=-519787588

The db_*.log files for various engines show errors such as:

ERROR .a.s.loader "Transaction received has timestamp marked too far in future (YYYY-MM-DD HH:MM:SS) from current time (YYYY-MM-DD HH-MM-SS), which is X seconds in the future of this server engine and so will be rejected with TIME_SKEW exception.  System administrator must ensure that all servers have the same time (within 900 seconds).
ERROR .a.s.loader "The transaction that caused this TIME_SKEW is [.a.p.PROCESS.acceptWorkBulk].  This transaction will not be executed.


In a distributed installation, at least two of the servers in the Appian environment have a difference in the system time that is greater than 900 seconds.


Verify the system time on each server in the Appian environment. The system time on all servers must be synchronized so that each server reports the same time.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: August 2018