pmdaxfs(1) [centos man page]
PMDAXFS(1) General Commands Manual PMDAXFS(1) NAME
pmdaxfs - XFS filesystem performance metrics domain agent (PMDA) SYNOPSIS
$PCP_PMDAS_DIR/xfs/pmdaxfs [-d domain] [-l logfile] DESCRIPTION
pmdaxfs is a Performance Metrics Domain Agent (PMDA) which extracts performance metrics describing the state of the XFS filesystem from the Linux kernel. The xfs PMDA exports metrics that measure information about metadata buffer usage, the journal, btree operations, inode operations, extended attributes, directories, quotas, read and write operation counts and of course throughput. The PMDA provides a facility to reset the values of all counters to zero using pmstore(1) with the xfs.control.reset metric. A brief description of the pmdaxfs command line options follows: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -l Location of the log file. By default, a log file named xfs.log is written in the current directory of pmcd(1) when pmdaxfs is started, i.e. $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. INSTALLATION
The xfs PMDA is installed and available by default on Linux. If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/xfs # ./Remove If you want to establish access to the names, help text and values for the XFS performance metrics once more, after removal, do the follow- ing as root: # cd $PCP_PMDAS_DIR/xfs # ./Install pmdaxfs is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed. FILES
$PCP_PMCDCONF_PATH command line options used to launch pmdaxfs $PCP_PMDAS_DIR/xfs/help default help text file for the xfs metrics $PCP_PMDAS_DIR/xfs/Install installation script for the pmdaxfs agent $PCP_PMDAS_DIR/xfs/Remove undo installation script for the pmdaxfs agent $PCP_LOG_DIR/pmcd/xfs.log default log file for error messages and other information from pmdaxfs PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). SEE ALSO
PCPIntro(1), pmcd(1), pmstore(1), pcp.conf(5) and pcp.env(5). Performance Co-Pilot PCP PMDAXFS(1)
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PMDASENDMAIL(1) General Commands Manual PMDASENDMAIL(1) NAME
pmdasendmail - sendmail performance metrics domain agent (PMDA) SYNOPSIS
$PCP_PMDAS_DIR/sendmail/pmdasendmail [-d domain] [-l logfile] [-U username] DESCRIPTION
pmdasendmail is a sendmail Performance Metrics Domain Agent (PMDA) which exports mail traffic statistics as collected by sendmail(1). Before the sendmail PMDA can export any metrics, sendmail(1) must have statistics collection enabled. This involves checking the name of the statistics file, as given by the OS or O StatusFile control lines in /etc/sendmail.cf, and then creating this file if it does not already exist. Removing the file will terminate statistics collection by sendmail(1) and hence the sendmail PMDA. A brief description of the pmdasendmail command line options follows: -d It is absolutely crucial that the performance metrics domain number specified here is unique and consistent. That is, domain should be different for every PMDA on the one host, and the same domain number should be used for the same PMDA on all hosts. -l Location of the log file. By default, a log file named sendmail.log is written in the current directory of pmcd(1) when pmdasendmail is started, i.e. $PCP_LOG_DIR/pmcd. If the log file cannot be created or is not writable, output is written to the standard error instead. -U User account under which to run the agent. The default is the unprivileged "pcp" account in current versions of PCP, but in older versions the superuser account ("root") was used by default. There are no communication options, as the Install script ensures the sendmail PMDA will be connected to PMCD by a pipe. INSTALLATION
If you want access to the names, help text and values for the sendmail performance metrics, do the following as root: # cd $PCP_PMDAS_DIR/sendmail # ./Install If you want to undo the installation, do the following as root: # cd $PCP_PMDAS_DIR/sendmail # ./Remove pmdasendmail is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is installed or removed. FILES
$PCP_PMCDCONF_PATH command line options used to launch pmdasendmail $PCP_PMDAS_DIR/sendmail/help default help text file for the sendmail metrics $PCP_PMDAS_DIR/sendmail/Install installation script for the pmdasendmail agent $PCP_PMDAS_DIR/sendmail/Remove undo installation script for the pmdasendmail agent $PCP_LOG_DIR/pmcd/sendmail.log default log file for error messages and other information from pmdasendmail /etc/sendmail.cf sendmail configuration file to identify the name of the statistics file PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura- tion file, as described in pcp.conf(5). SEE ALSO
pmcd(1) and sendmail(1). Performance Co-Pilot PCP PMDASENDMAIL(1)