cluster computing - Websphere 7 clustered deployment -

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we have j2ee application ear file deployed in 7, making application availability high needs deployed in 3 clusters. have quartz scheduler class job upload data 1 database daily @ 2:00 am.

now, problem if ear deployed in 3 different nodes load balancing , high availability, 3 ear file trigger upload @ same time. how can handle this. possible configuration in 7 environment. help/suggestion appreciated.

thanks

you have 2 possibilities:

  1. the quartz database backend nodes connect same database quartz uses synchronizing task running. can configured prevent task running on several nodes simultaneously.
  2. ejb 3.x timer. see instance example. works ensuring member each of clusters fire timer.

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