Hi, I think there's a problem in UsedSpace for Admin Tools Application. If we change the default values for "xwiki.db" and "xwiki.db.prefix" parameters (in xwiki.cfg), the code of "showSpaceUsed" procedure doesn't work : def showSpaceUsed(message, table, wiki) { def mwikiquery = (wiki=="") ? "" : "AND TABLE_SCHEMA = '${wiki}'" def query = (table=="") ? "SELECT SUM(DATA_LENGTH)/1024/1024 as 'space' FROM INFORMATION_SCHEMA.TABLES WHERE 1=1 ${mwikiquery}" : "SELECT SUM(DATA_LENGTH)/1024/1024 as 'space' FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='${table}' ${mwikiquery}" For example with "xwiki.db=manager" and "xwiki.db.prefix=xwiki_" : My table is "xwiki_manager" and not "xwiki". As result : Wiki xwiki o Total Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o Attachment Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o Attachment History Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o Attachment Recycle bin Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o History Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o Recycle bin Space used: ? (No signature of method: static java.lang.Math.floor() is applicable for argument types: (java.lang.String) values: [] Possible solutions: floor(double), log(double), find(), acos(double), cos(double), cosh(double) o Other Space used 0.0MB Best regards, Nicolas