1PMDAORACLE(1) General Commands Manual PMDAORACLE(1)
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6 pmdaoracle - Oracle database PMDA
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9 pmdaoracle is a Performance Co-Pilot PMDA which extracts live perfor‐
10 mance data from a running Oracle database.
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13 pmdaoracle uses a configuration file from (in this order):
14 • /etc/pcpdbi.conf
15 • $PCP_PMDAS_DIR/oracle/oracle.conf
16 • ./oracle.conf
17 This file can contain overridden values (Perl code) for the settings
19 listed at the start of pmdaoracle.pl, for example:
20 • $username - username to connect to the database [default: 'SYSTEM']
21 • $password - password to connect to the database [default: 'man‐
22 ager']
23 • $host - host the database is running on [default: 'localhost']
24 • $port - port the database is listening on [default: '1521']
25 • $os_user - operating system username (PMDA will run with the corre‐
26 sponding user id) [default: oracle]
27 • @sids - an array of $ORACLE_SID database identifiers [default:
28 ('master')]
29 In order to test your local settings, a simple script is provided that
31 will connect and disconnect from the database - verifying fundamental
32 configuration is in place before continuing on. If the $PCP_PM‐
33 DAS_DIR/oracle/connect.pl script cannot connect, do not proceed with
34 installation of the PMDA as it will be unsuccessful. Correct your lo‐
35 cal settings first.
36 Once this is setup, you can access the names and values for the oracle
38 performance metrics by doing the following as root:
39 # cd $PCP_PMDAS_DIR/oracle
41 # ./Install
42 To uninstall, the following must be done as root:
44 # cd $PCP_PMDAS_DIR/oracle
46 # ./Remove
47 pmdaoracle is launched by pmcd(1) and should never be executed di‐
49 rectly. The Install and Remove scripts notify pmcd(1) when the agent is
50 installed or removed.
51
53 By default, pmdaoracle will aggressively attempt to maintain persistent
54 connections to Oracle to ensure timely responses to its queries, and
55 will automatically re-connect if a connection drops.
56 However, in certain circumstances this may be undesirable, so a manual
58 pmStore(3) mechanism is provided to explicitly control disconnecting
59 and reconnecting to an Oracle instance. This can be used, for example,
60 to ensure that pmdaoracle is not connected at shutdown, to ensure a
61 clean Oracle shutdown process.
62 The pmstore (1) command can be used to disconnect and reconnect. Using
64 the individual instances of the oracle.control.connected metric, one
65 can set the connection state to either up (1) or down (0). Addition‐
66 ally, pminfo(1) can report on the current status of Oracle connections.
67 # pminfo ‐f oracle.control.connected
69 oracle.control.connected
71 inst [0 or "master"] value 1
72 # pmstore oracle.control.connected 0
74 oracle.control.connected inst [0 or "master"] old value=1 new value=0
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77 /etc/pcpdbi.conf
78 configuration file for all PCP database monitors
79 $PCP_PMDAS_DIR/oracle/oracle.conf
80 configuration file for pmdaoracle
81 $PCP_PMDAS_DIR/oracle/sample.conf
82 example configuration file for pmdaoracle using $LD_LIBRARY_PATH
83 $PCP_PMDAS_DIR/oracle/connect.pl
84 configuration test script for Oracle database connectivity
85 $PCP_PMDAS_DIR/oracle/Install
86 installation script for the pmdaoracle agent
87 $PCP_PMDAS_DIR/oracle/Remove
88 undo installation script for the pmdaoracle agent
89 $PCP_LOG_DIR/pmcd/oracle.log
90 default log file for error messages from pmdaoracle
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93 Environment variables with the prefix PCP_ are used to parameterize the
94 file and directory names used by PCP. On each installation, the file
95 /etc/pcp.conf contains the local values for these variables. The
96 $PCP_CONF variable may be used to specify an alternative configuration
97 file, as described in pcp.conf(5).
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100 PCPIntro(1), pmdadbping(1), pminfo(1), pmstore(1), DBI(3) and pm‐
101 Store(3).
102Performance Co-Pilot PCP PMDAORACLE(1)