• July 6, 2022

Little known iCluster Monitor Commands Part 2: CHGHASMON

Last week’s Tech Tuesday post talked about little known iCluster monitor commands. In Part 1 we introduced DSPHASMON, a display only version of the iCluster Primary Status Monitor. This week we cover CHGHASMON. iCluster is always collecting historical data on latency, journal positions and throughput in the background. This history can be accessed via Option 12 on the monitors. The collection of this data can be modified using the CHGHASMON command. The Change Source History Monitor (CHGHASMON) command changes the  history monitor collection process on a primary node. The collection process can be modified so that replication information is captured for different groups within different collection intervals. As you can see in the screen below,

CHGHASMON

for any group you can specify a start date and time, end date and time and a polling interval for data collection. If you have groups that are less critical and you need no historical monitoring you can turn it off completely or just monitor for a few specific hours or days and then stop data collection.

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iCluster TechTuesday is a set of posts covering technical tips and techniques to help get the most out of your Rocket iCluster installation.

4 Comments

  • Mickysz Reply

    February 6, 2014 at 6:35 am

    Can we delete/ clear the records at any stage? clean up /sql?

  • Mike Warkentin Reply

    February 10, 2014 at 9:52 am

    Mickysz Yes of course. At the risk of stealing my thunder for tomorrow’s Tech Tuesday post, the PRGHASMON command will do the trick!

  • Little known iCluster Monitor Commands Part 3: PRGHASMON Reply

    February 11, 2014 at 8:07 am

    […] Little known iCluster Monitor Commands Part 2: CHGHASMON […]

  • What's in the History Monitor? Reply

    May 20, 2014 at 7:54 am

    […] see Option 12 = History. What exactly is behind that option? In a previous post, we discussed the CHGHASMON command which starts or changes the collection process for the Primary History […]

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