I have a question regarding the scheduled services,my scheduled services will disapper sometimes so we have to restart the integration server again so that the scheduled services come again into action this happens on and off i d’t know why this happens ,

we have two 2 integration servers 6.1 in clustered envir
and Oracle as repository server,i looked into the repoui.bat the settings looks great but i d’t know why it happens,
can some one help in this regard