Linux下使用ps命令来查看Oracle相关的进程
Linux下可以使用ps命令来查看Oracle相关的进程
Oracle Listener
这个命令会列出Oracle Net Listener的进程
[oracle@bej301441 ~]$ ps -ef | grep tnslsnr oracle 1999 29986 0 09:47 pts/2 00:00:00 grep tnslsnr oracle 3647 1 0 Jul03 ? 00:00:34 /u01/oracle/mc3yd213/db/tech_st/11.1.0/bin/tnslsnr mc3yd213 -inherit oracle 6431 1 0 Jul03 ? 00:00:00 /u01/oracle/mc3yd213/apps/tech_st/10.1.2/bin/tnslsnr APPS_mc3yd213 -inherit oracle 13616 1 0 May27 ? 00:00:40 /u01/oracle/mc3yd213/apps/tech_st/10.1.2/bin/tnslsnr LISTENER -inherit [oracle@bej301441 ~]$
Oracle Background Process
[oracle@bej301441 ~]$ ps -ef | grep -i "ora_" oracle 1887 1 0 09:42 ? 00:00:00 ora_w000_mc3yd213 oracle 2159 1 0 09:54 ? 00:00:00 ora_j000_mc3yd213 oracle 2167 29986 0 09:55 pts/2 00:00:00 grep -i ora_ oracle 3516 1 0 Jul03 ? 00:02:00 ora_pmon_mc3yd213 oracle 3518 1 0 Jul03 ? 00:02:08 ora_vktm_mc3yd213 oracle 3522 1 0 Jul03 ? 00:00:27 ora_diag_mc3yd213 oracle 3524 1 0 Jul03 ? 00:00:18 ora_dbrm_mc3yd213 oracle 3526 1 0 Jul03 ? 00:00:35 ora_psp0_mc3yd213 oracle 3528 1 0 Jul03 ? 00:05:59 ora_dia0_mc3yd213 oracle 3530 1 0 Jul03 ? 00:00:19 ora_mman_mc3yd213 oracle 3532 1 0 Jul03 ? 00:01:06 ora_dbw0_mc3yd213 oracle 3534 1 0 Jul03 ? 00:02:53 ora_lgwr_mc3yd213 oracle 3536 1 0 Jul03 ? 00:02:08 ora_ckpt_mc3yd213 oracle 3538 1 0 Jul03 ? 00:01:36 ora_smon_mc3yd213 oracle 3540 1 0 Jul03 ? 00:00:06 ora_reco_mc3yd213 oracle 3542 1 0 Jul03 ? 00:02:01 ora_mmon_mc3yd213 oracle 3544 1 0 Jul03 ? 00:03:20 ora_mmnl_mc3yd213 oracle 3564 1 0 Jul03 ? 00:00:09 ora_fbda_mc3yd213 oracle 3569 1 0 Jul03 ? 00:00:16 ora_qmnc_mc3yd213 oracle 3584 1 0 Jul03 ? 00:00:36 ora_q000_mc3yd213 oracle 3586 1 0 Jul03 ? 00:00:15 ora_q001_mc3yd213 oracle 3690 1 0 Jul03 ? 00:02:30 ora_cjq0_mc3yd213 oracle 3707 1 0 Jul03 ? 00:00:28 ora_smco_mc3yd213 oracle 7676 1 0 Jul03 ? 00:42:49 ora_m000_mc3yd213 [oracle@bej301441 ~]$eg.ora_pmon_mc3yd213 is PMON process, PMON (Process MONitor) is an Oracle background process created when you start a database instance. The PMON process will free up resources if a user process fails (eg. release database locks).
这些后台进程，从数据库里也是能查到的，可以使用下边这个SQL来查后台进程，在program列中，你就能看到SMON,MMON,CKPT,PMON,MMAN,MMNL...后台进程
select * FROM v$session WHERE type ='BACKGROUND';关于后台进程，可以参见 Oracle Background processes
Oracle Management Agent
[oracle@bej301441 ~]$ ps -ef | grep emagent oracle 2097 29986 0 09:51 pts/2 00:00:00 grep emagent oraem 3130 1 0 May24 ? 00:08:57 /opt/oracle/oraem/agent10g/perl/bin/perl /opt/oracle/oraem/agent10g/bin/emwd.pl agent /opt/oracle/oraem/agent10g/sysman/log/emagent.nohup oraem 3150 3130 0 May24 ? 00:25:56 /opt/oracle/oraem/agent10g/bin/emagent [oracle@bej301441 ~]$
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