09-21-2001
Interpretting the result of TOP command
I want to find out how much memory is used by one unix process. I guess I can use unix top command. I have seen the SIZE and RES column in the TOP command. For Oracle client connections these values are too high about 700M , My system does not have that much pysical memory. Here is few Oracle processes listing. I don't believe that Oracle will use about 650M for a client connection. Can anybody help me understanding it.
Thanks for you help.
Sanjay
PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
21156 sanjay 1 10 0 2264K 1824K cpu0 0:02 4.71% top
18843 oracle 1 30 0 653M 619M sleep 0:14 1.18% oracle
20470 oracle 11 30 0 655M 623M sleep 34:40 0.30% oracle
18709 oracle 1 30 0 653M 619M sleep 2:56 0.08% oracle
11889 oracle 11 53 0 657M 622M sleep 25:35 0.05% oracle
11903 oracle 11 58 0 655M 622M sleep 0:19 0.04% oracle
11909 oracle 13 50 0 655M 622M sleep 3:55 0.03% oracle
11879 oracle 12 59 0 655M 621M sleep 16:15 0.02% oracle
3678 oracle 1 58 0 654M 621M sleep 2:09 0.02% oracle
18711 oracle 1 59 0 652M 618M sleep 0:16 0.02% oracle
11883 oracle 11 50 0 657M 623M sleep 18:40 0.01% oracle
597 root 7 59 -16 3576K 2208K sleep 5:27 0.01% VolumeAgent
20522 sanjay 1 48 0 2056K 1616K sleep 0:00 0.01% bash
11873 oracle 11 55 0 655M 625M sleep 14:20 0.00% oracle
11 root 4 58 0 2960K 1072K sleep 12:57 0.00% vxconfigd
19619 oracle 1 58 0 653M 620M sleep 8:18 0.00% oracle
3555 root 1 51 0 86M 2872K sleep 61:07 0.00% snmpd
1666 oracle 11 58 0 654M 609M sleep 43:50 0.00% oracle
11897 oracle 11 58 0 658M 623M sleep 34:20 0.00% oracle
14793 oracle 11 59 0 657M 622M sleep 30:41 0.00% oracle
11899 oracle 11 58 0 656M 622M sleep 24:13 0.00% oracle
10517 oracle 11 28 0 656M 623M sleep 22:22 0.00% oracle
10527 oracle 11 58 0 656M 623M sleep 18:34 0.00% oracle
1668 oracle 113 58 0 655M 611M sleep 17:25 0.00% oracle
10523 oracle 11 58 0 656M 622M sleep 17:00 0.00% oracle
11905 oracle 11 13 0 655M 623M sleep 14:06 0.00% oracle
11891 oracle 1 48 0 654M 620M sleep 13:32 0.00% oracle
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LEARN ABOUT DEBIAN
ocf_heartbeat_oracle
OCF_HEARTBEAT_ORACLE(7) OCF resource agents OCF_HEARTBEAT_ORACLE(7)
NAME
ocf_heartbeat_oracle - Manages an Oracle Database instance
SYNOPSIS
oracle [start | stop | status | monitor | meta-data | validate-all]
DESCRIPTION
Resource script for oracle. Manages an Oracle Database instance as an HA resource.
SUPPORTED PARAMETERS
sid
The Oracle SID (aka ORACLE_SID). (unique, required, string, no default)
home
The Oracle home directory (aka ORACLE_HOME). If not specified, then the SID along with its home should be listed in /etc/oratab.
(optional, string, no default)
user
The Oracle owner (aka ORACLE_OWNER). If not specified, then it is set to the owner of file $ORACLE_HOME/dbs/*${ORACLE_SID}.ora. If this
does not work for you, just set it explicitely. (optional, string, no default)
ipcrm
Sometimes IPC objects (shared memory segments and semaphores) belonging to an Oracle instance might be left behind which prevents the
instance from starting. It is not easy to figure out which shared segments belong to which instance, in particular when more instances
are running as same user. .sp What we use here is the "oradebug" feature and its "ipc" trace utility. It is not optimal to parse the
debugging information, but I am not aware of any other way to find out about the IPC information. In case the format or wording of the
trace report changes, parsing might fail. There are some precautions, however, to prevent stepping on other peoples toes. There is also
a dumpinstipc option which will make us print the IPC objects which belong to the instance. Use it to see if we parse the trace file
correctly. .sp Three settings are possible: .sp - none: don't mess with IPC and hope for the best (beware: you'll probably be out of
luck, sooner or later) - instance: try to figure out the IPC stuff which belongs to the instance and remove only those (default; should
be safe) - orauser: remove all IPC belonging to the user which runs the instance (don't use this if you run more than one instance as
same user or if other apps running as this user use IPC) .sp The default setting "instance" should be safe to use, but in that case we
cannot guarantee that the instance will start. In case IPC objects were already left around, because, for instance, someone mercilessly
killing Oracle processes, there is no way any more to find out which IPC objects should be removed. In that case, human intervention is
necessary, and probably _all_ instances running as same user will have to be stopped. The third setting, "orauser", guarantees IPC
objects removal, but it does that based only on IPC objects ownership, so you should use that only if every instance runs as separate
user. .sp Please report any problems. Suggestions/fixes welcome. (optional, string, default instance)
clear_backupmode
The clear of the backup mode of ORACLE. (optional, boolean, default false)
shutdown_method
How to stop Oracle is a matter of taste it seems. The default method ("checkpoint/abort") is: .sp alter system checkpoint; shutdown
abort; .sp This should be the fastest safe way bring the instance down. If you find "shutdown abort" distasteful, set this attribute to
"immediate" in which case we will .sp shutdown immediate; .sp If you still think that there's even better way to shutdown an Oracle
instance we are willing to listen. (optional, string, default checkpoint/abort)
SUPPORTED ACTIONS
This resource agent supports the following actions (operations):
start
Starts the resource. Suggested minimum timeout: 120.
stop
Stops the resource. Suggested minimum timeout: 120.
status
Performs a status check. Suggested minimum timeout: 5.
monitor
Performs a detailed status check. Suggested minimum timeout: 30. Suggested interval: 120.
validate-all
Performs a validation of the resource configuration. Suggested minimum timeout: 5.
methods
Suggested minimum timeout: 5.
meta-data
Retrieves resource agent metadata (internal use only). Suggested minimum timeout: 5.
EXAMPLE
The following is an example configuration for a oracle resource using the crm(8) shell:
primitive p_oracle ocf:heartbeat:oracle
params
sid=string
op monitor depth="0" timeout="30" interval="120"
SEE ALSO
http://www.linux-ha.org/wiki/oracle_(resource_agent)
AUTHOR
Linux-HA contributors (see the resource agent source for information about individual authors)
resource-agents UNKNOWN 03/09/2014 OCF_HEARTBEAT_ORACLE(7)