In this blog post, let’s learn about the error message “123 ISAM error: no shared memory.” in Hydra and the description of the error.
Error Message
123 ISAM error: no shared memory.
Error Details
The ISAM processor has been asked to mark the start or end of a transaction, but transaction logging is not in effect. For C-ISAM programs, this file was not opened with logging. Review the calls to isopen, and make sure that the ISTRANS parameter is included. For SQL products, this database does not support transaction logging. If you are using the database server, have the database server administrator enable logging for this database. Otherwise, use the START DATABASE statement to begin transaction logging. In all cases, logging should only start immediately after the database has been fully backed up.