The paramdb file (located in /vardir/data subdirectory) contains user-defined parameter settings — values that were changed from their defaults by a SharePlex Administrator using the “set param” command. This article addresses the question of editing the file manually to change value of a SharePlex parameter from its default.
General information.
It is possible to edit the paramdb file manually by using the operating system editor but ideally you may want to shutdown SharePlex prior to doing so. Mostly sp_ctrl commands are used to change the content of paramdb except for some rare situations. So, if one were to edit it manually, care has to be taken to do it with diligence. When done thru sp_ctrl, this problem will not arise as any invalid command will be rejected by the program code, for example values of the parameters falling out of valid range, or wrong name specified for a parameter.
One of the rare situation that requires manual editing of paramdb file is, a server panic or server crash corrupts the paramdb by removing a part of its content and it now needs to be repaired manually for replication to resume.
