Historical data in TDMaps tables can take up too much space. To clean up old data and regain space, periodically run TruncateHistorySP. For example:
call tdmaps.truncatehistorysp(date '2016-01-01', :numdeletedrows);
Result:
*** Procedure has been executed.
*** Warning: 3212: The stored procedure returned one or more result sets.
NumDeletedRows
--------------
35
*** ResultSet# 1 : 3 rows returned by "TDMAPS.TRUNCATEHISTORYSP".
Table NumRowsDeleted
-------------- --------------
ActionHistory 10
LogTbl 20
AnalyzeLogTbl 5