Hi Yuan, Sqgen is a script that takes a mixture of configuration and release specific parameters and creates or sets up a number of files that are used at startup and runtime.
For example, there is a file named sqconfig that describes the cluster (the number of nodes, the location of $TRAF_HOME, etc). Sqgen takes this file and other scripts to programmatically generate $TRAF_HOME/etc/ms.env, gomon.cold, etc. These are files that are created specifically and tailored to the installed cluster and release that it is running. In this way, when a user types 'sqstart' the scripts, directories, and files are all in place for the monitor and other processes to read and come up quickly and consistently. If you later decide to alter the configuration of your cluster, for example it you change the number of nodes in sqconfig, you can stop Trafodion and rerun sqgen. When Trafodion is restarted it will reflect the new changes you've specified. Regards, Sean -----Original Message----- From: Liu, Yuan (Yuan) [mailto:yuan....@esgyn.cn] Sent: Thursday, November 16, 2017 1:58 AM To: dev@trafodion.incubator.apache.org Subject: About sqgen Hi Trafodioneers, As we know, the first time when we install Trafodion, "sqgen" is required to run, can anyone give a brief introduction about sqgen? What does sqgen do? Thanks ahead. Best regards, Yuan
