alter table dfs_throughput change readsFromLocalRemotePerSec readsFromRemoteClientPerSec double;
alter table dfs_throughput change writesFromLocalRemotePerSec writesFromRemoteClientPerSec double;
alter table dfs_individual change readsFromLocalRemotePerSec readsFromRemoteClientPerSec double;
alter table dfs_individual change writesFromLocalRemotePerSec writesFromRemoteClientPerSec double;