Re: Reducing Checkpoints duration

Posted in 1998

Kate_Tomchik@HomeDepot.COM — Tue, 29 Sep 1998 11:14:24 -0400 — source: Informix-list mailing list archive (1991-1998)

Make the Chkptintvl much higher, like 600. This will force the engine to do the cleanups separate from during the checkpoints. Please respond to cam@codetel.net.do To: "International Informix Users Group (E-mail)" <informix-list @ iiug.org> cc: (bcc: Kate Tomchik/IS/SSC/THD) Subject: Reducing Checkpoints duration Hello all! I'm using INFORMIX Dyamic Server Workgroup Edition 7.20.UC2 on SCO OpenServer and I'm getting checkpoints that lasts until 20 seconds . I reduced LRU_MAX_DIRTY and LRU_MIN_DIRTY to 10 and 5 respectively and the CHKPTINTVL to 60. I'm still getting checkpoints around 10 seconds. I have been monitoring the LRU's queue and the flushers activities and apparently the buffers are not being cleaning when reach the LRU_MAX_DIRTY parameter. Is there any another trick for reduce such time? thanks in advance. Ing. Melvin Perez Cedano Vicepresidente Tecnico CAM Informatica, S. A.