Trigger using Find string

[sagar]

Hi,

I have set a UserParameter that sends "rsync failed" on failure.
I want to set a trigger that fires on 5 consecutive rsync failed alerts.

I tried

{Server:rsync.status.str("rsync failed",#5)}=1 & {Server:rsync.status.str("rsync failed",#4)}=1 & {Server:rsync.status.str("rsync failed",#3)}=1 & {Server:rsync.status.str("rsync failed",#2)}=1 & {Server:rsync.status.str("rsync failed",#1)}=1

But is not working. The trigger fires even if any one of the previous 5 values is "rsync failed".