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Relationship between crawls and immediate alerts

  Asked By: Mindy    Date: Sep 10    Category: Sharepoint    Views: 1041

I'm having a discussion at work on the relationship between crawls and
immediate alerts ( NOT daily or weekly).

One camp says that if, for example, your incremental crawls are set for
one hour, then you get immediate alerts every hour. Thus the timing of
immediate alerts is tied to the scheduling of the crawl.

Another says that there is no relationship, the alert is triggered by
the action itself and that is why its stored in a separate table and
the timing set using stsadm.exe. Our alerts, when they work, are quite
instantaneous and could not possibly be the result of any crawl.

Obviously we are having problems with our alerts which is what started
the discussion.

What say you guys?



3 Answers Found

Answer #1    Answered By: Damon Garner     Answered On: Sep 10

WSS alerts  aren’t on the same schedule as SPS alerts. They are more or less fired immediately

Architecturally SPS alerts have to be the result  of a crawl. The “notifier” (which is what I’ll call it because I can’t remember what the PAM acronym stands for right now.) takes it’s input from the Indexing/Gathering process.

So … what are the issues that you’re seeing?

Answer #2    Answered By: Christop Mcfadden     Answered On: Sep 10

We were having a problem with losing half of our alerts  and wondering
where to start. One guy wanted to adjust the crawl  frequency and
another wanted to use stsadm  for a WSS site as we initially didn't
understand the difference in how the alerts were handled. But based
on other research we did, you are are exactly right.

FYI we solved the losing alerts issue by turning on SMTP on the
Sharepoint server instead of just pointing to another dedicated SMTP
server to gain the benefit of the out queue. If the connection
wasn't available at the moment the alert  was generated, the alert was
lost. With its own SMTP service, the alert email would be held until
the connection was available.

Answer #3    Answered By: Victoria Bell     Answered On: Sep 10

I generally put SMTP on the SharePoint farm, lock it down to my servers and then forward to the corporate SMTP server. It allows me to do things like eat a set  of alerts  if I know that people are going to get alerts they shouldn’t (if an index needs to be reset or similar.)

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