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T
tftrandy
Participant
December 15, 2009
Question

cf8 server hang

  • December 15, 2009
  • 1 reply
  • 2779 views

Hi,

I am hoping someone would have some ideas on this.

Platform: Sol 10.

CF8 running standalone.

Web Server Sun/Iplanet 7

Java: 1.6.0_01

I have a intermittent situation where cfserver will hang for 5 to 10 minutes and then go back to normal.

What I have observed during this time is my running templates jump to the maximum of 100 from a regular peak

of about 10 to 20.

I enabled server monitor to capture a snapshot of when the server is in this state and see a log of jdbcPool checkIn and checkOuts in a blocked state.

I have not found any out of memory issues in the JVM.

Not using a lof of CFC's mostly using cfm templates in my applications.

I do not see any locks or blocks on the DB and there is not a saturation of connections there.

I have attached the snapshot file from coldfusion for reference.

Thanks

    This topic has been closed for replies.

    1 reply

    A
    Anonymous
    December 16, 2009

    is ur db on same server? if not, get a network guy to trace the packets (inc firewall if any) - looks like there is a drop out inconnections. what are ur connection pooling settings?

    anything different in the code cftransation, calls to db, webservice, http or otherwise

    ur using cf8 - profile the requests when the problem occurs and see where the problem is occuring.

    what kindof db requests are u sending, sql or proc calls?

    ur running 100 requests at once - that's quite a lot - is the app / server/ db is able to cope with all that?

    T
    tftrandyAuthor
    Participant
    December 16, 2009

    Hi,

    Where are you seeing the dropout of db connections ?

    The calls to db have not changed. Mostly using cfqueries using standard sql.

    The DB sever is on a different server. There are no firewalls between the two servers.

    I will enable profiling during a non issue time and attach the logs to this.

    My connection Pool is set to Maintain Connections and at a Max of 120 Connection.

    Not seen any issues with the DB or server side. The cf server runs on a 32 Core Sparc Machine

    and the DB is running on a 8 processor machine. I have monitored the db during this issue and do not see any db errors e.t.c.

    No Locks or Logical Blocks.

    Thanks

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