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2025/1/8 11:37:03 来源：https://blog.csdn.net/zengxiangbo/article/details/144979720  浏览:  次   关键词：互联网协会是干嘛的_平台推广策划_合肥百度搜索优化_今日大新闻
互联网协会是干嘛的_平台推广策划_合肥百度搜索优化_今日大新闻

一、现象

 操作系统内存使用率告警，已达到98%,，告警内容如下：

【全景监控：Oracle主机内存使用监控】

【主机名】：XXXXX11

【主机IP】主机IP：*.126.15

【告警内容】当前内存使用率为98.9%，超警戒值90%

请及时处理

二、分析

1、查看操作系统内存使用情况

free -g

top

M

2、查看sga和pga分配的内存分别是：140g和40g。

3、集群日志发现如下报错

2022-03-20 20:22:19.247: 
[ohasd(30064)]CRS-10000:CLSU-00100: Operating System function: mkdir failed with error data: 28
CLSU-00101: Operating System error message: No space left on device
CLSU-00103: error location: authprep6
CLSU-00104: additional error information: failed to make dir /u01/app/11.2.0/grid/auth/ohasd/gw11/A10760792022-03-20 20:22:19.248: 
[ohasd(30064)]CRS-10000:CLSU-00100: Operating System function: mkdir failed with error data: 28
CLSU-00101: Operating System error message: No space left on device
CLSU-00103: error location: authprep6
CLSU-00104: additional error information: failed to make dir /u01/app/11.2.0/grid/auth/ohasd/gw11/A0906893

4、查看内存排行榜，top M ohas.d占用率最高

5、根据alert的报错日志查看空间使用率77%

[grid@gw11 crsd]$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_user01-LogVol0450G  4.5G   43G  10% /
tmpfs                 126G  736M  126G   1% /dev/shm
/dev/sda1             190M   42M  139M  24% /boot
/dev/mapper/vg_user01-LogVol0120G   45M   19G   1% /tmp
/dev/mapper/vg_user01-LogVol02148G  108G   33G  77% /u01
/dev/mapper/vg_user01-LogVol009.8G  636M  8.6G   7% /var
/dev/mapper/vg_user01-ogg_vg493G  8.8G  459G   2% /ogg
/dev/sds              2.0T   76G  1.8T   4% /nfs

6、当前空间看并没有不足，进一步查看删除未释放的空间，发现异常，存在大量删除未释放的文件，至此问题原因已明确，由于在删除文件的时候，进程占用，导致空间未能释放，从而引起空间不足。

[root@gw11 oraagent_grid]# lsof |grep delete
oracle     47876    oracle    3u      REG              253,5       7607   21495944 /ogg/dirrpt/R_P_JF9.rpt (deleted)
oracle     47876    oracle    5w      REG              253,5   10490641        114 /ogg/ggserr.log.9 (deleted)
oracle     47876    oracle    8w      REG              253,5       5876   21495906 /ogg/dirrpt/r_p_jf9.dsc (deleted)
server    246950    oracle    2w      REG              253,5   10490505        119 /ogg/ggserr.log.9 (deleted)
server    246951    oracle    2w      REG              253,5   10490505        119 /ogg/ggserr.log.9 (deleted)
server    246952    oracle    2w      REG              253,5   10490505        119 /ogg/ggserr.log.9 (deleted)
server    246953    oracle    2w      REG              253,5   10490505        119 /ogg/ggserr.log.9 (deleted)
oracle    257774    oracle    3u      REG              253,5       7310   21496010 /ogg/dirrpt/REP_FLO39.rpt (deleted)
oracle    257774    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257774    oracle    8w      REG              253,5       4855   21495982 /ogg/dirrpt/rep_flo39.dsc (deleted)
oracle    257775    oracle    3u      REG              253,5       7308   21496000 /ogg/dirrpt/REP_FLO29.rpt (deleted)
oracle    257775    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257775    oracle    8w      REG              253,5       4856   21495932 /ogg/dirrpt/rep_flo29.dsc (deleted)
oracle    257776    oracle    3u      REG              253,5       7310   21496013 /ogg/dirrpt/REP_FLO59.rpt (deleted)
oracle    257776    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257776    oracle    8w      REG              253,5       5003   21495861 /ogg/dirrpt/rep_flo59.dsc (deleted)
oracle    257777    oracle    3u      REG              253,5       7491   21496015 /ogg/dirrpt/REP_ORD19.rpt (deleted)
oracle    257777    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257777    oracle    8w      REG              253,5       5662   21496050 /ogg/dirrpt/REP_ORD19.dsc (deleted)
oracle    257778    oracle    3u      REG              253,5       6482   21495827 /ogg/dirrpt/REP_FLO19.rpt (deleted)
oracle    257778    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257778    oracle    8w      REG              253,5       5169   21495994 /ogg/dirrpt/rep_flo19.dsc (deleted)
oracle    257779    oracle    3u      REG              253,5       7474   21496020 /ogg/dirrpt/REP_ORD29.rpt (deleted)
oracle    257779    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257779    oracle    8w      REG              253,5       5522   21495877 /ogg/dirrpt/REP_ORD29.dsc (deleted)
oracle    257780    oracle    3u      REG              253,5       7474   21496028 /ogg/dirrpt/REP_ORD59.rpt (deleted)
oracle    257780    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257780    oracle    8w      REG              253,5       5498   21496153 /ogg/dirrpt/REP_ORD59.dsc (deleted)
oracle    257781    oracle    3u      REG              253,5       6481   21496014 /ogg/dirrpt/REP_FLOW9.rpt (deleted)
oracle    257781    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257781    oracle    8w      REG              253,5       4840   21495993 /ogg/dirrpt/rep_flow9.dsc (deleted)
oracle    257782    oracle    3u      REG              253,5       7310   21496012 /ogg/dirrpt/REP_FLO49.rpt (deleted)
oracle    257782    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257782    oracle    8w      REG              253,5       5099   21495977 /ogg/dirrpt/rep_flo49.dsc (deleted)
oracle    257783    oracle    3u      REG              253,5       7475   21496046 /ogg/dirrpt/REP_ORDE9.rpt (deleted)
oracle    257783    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257783    oracle    8w      REG              253,5       5662   21496148 /ogg/dirrpt/rep_orde9.dsc (deleted)
oracle    257785    oracle    3u      REG              253,5       7474   21496023 /ogg/dirrpt/REP_ORD39.rpt (deleted)
oracle    257785    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257785    oracle    8w      REG              253,5       5661   21496212 /ogg/dirrpt/REP_ORD39.dsc (deleted)
oracle    257786    oracle    3u      REG              253,5       7474   21496025 /ogg/dirrpt/REP_ORD49.rpt (deleted)
oracle    257786    oracle    5w      REG              253,5   10490644        120 /ogg/ggserr.log.9 (deleted)
oracle    257786    oracle    8w      REG              253,5       5498   21496152 /ogg/dirrpt/REP_ORD49.dsc (deleted)
oracle    268915    oracle    3u      REG              253,5       7755   21496082 /ogg/dirrpt/REP_ICR49.rpt (deleted)
oracle    268915    oracle    5w      REG              253,5   10490643        123 /ogg/ggserr.log.9 (deleted)
oracle    268915    oracle    8w      REG              253,5        330   21495988 /ogg/dirrpt/REP_ICR49.dsc (deleted)
oracle    268916    oracle    3u      REG              253,5       7801   21496080 /ogg/dirrpt/REP_ICR29.rpt (deleted)
oracle    268916    oracle    5w      REG              253,5   10490643        123 /ogg/ggserr.log.9 (deleted)
oracle    268916    oracle    8w      REG              253,5        330   21495986 /ogg/dirrpt/REP_ICR29.dsc (deleted)
oracle    268917    oracle    3u      REG              253,5       7755   21496079 /ogg/dirrpt/REP_ICR19.rpt (deleted)
oracle    268917    oracle    5w      REG              253,5   10490643        123 /ogg/ggserr.log.9 (deleted)
oracle    268917    oracle    8w      REG              253,5        330   21495987 /ogg/dirrpt/REP_ICR19.dsc (deleted)
oracle    268918    oracle    3u      REG              253,5       7755   21496083 /ogg/dirrpt/REP_ICR39.rpt (deleted)
oracle    268918    oracle    5w      REG              253,5   10490643        123 /ogg/ggserr.log.9 (deleted)
oracle    268918    oracle    8w      REG              253,5        330   21495985 /ogg/dirrpt/REP_ICR39.dsc (deleted)
gpnpd.bin 370856      grid   36uw     REG              253,3          0     524808 /var/tmp/.oracle/ora_gipc_GPNPD_bywsgw11_lock (deleted)
gipcd.bin 370870      grid   34uw     REG              253,3          0     524816 /var/tmp/.oracle/ora_gipc_gipcd_bywsgw11_lock (deleted)
osysmond. 370883      root   58uw     REG              253,3          0     524818 /var/tmp/.oracle/ora_gipc_sbywsgw11gridbyicdb-clusterCRFM_CLIIPC_lock (deleted)
osysmond. 370883      root   60uw     REG              253,3          0     524820 /var/tmp/.oracle/ora_gipc_sbywsgw11gridbyicdb-clusterCRFM_SIPC_lock (deleted)
ocssd.bin 370964      grid   35uw     REG              253,3          0     524814 /var/tmp/.oracle/sOCSSD_LL_bywsgw11__lock (deleted)
ocssd.bin 370964      grid   94uw     REG              253,3          0     524844 /var/tmp/.oracle/sOracle_CSS_LclLstnr_byicdb-cluster_1_lock (deleted)
ocssd.bin 370964      grid  100uw     REG              253,3          0     524845 /var/tmp/.oracle/sOCSSD_LL_bywsgw11_byicdb-cluster_lock (deleted)
oracle    372244      grid   16w      REG              253,4        832    5657402 /u01/app/grid/diag/asm/+asm/+ASM1/trace/+ASM1_ping_372244.trc (deleted)
oracle    372244      grid   17w      REG              253,4         62    5657404 /u01/app/grid/diag/asm/+asm/+ASM1/trace/+ASM1_ping_372244.trm (deleted)
oracle    372246      grid   15w      REG              253,4     106031    5657393 /u01/app/grid/diag/asm/+asm/+ASM1/trace/+ASM1_dia0_372246_base_1.trc (deleted)
oracle    372246      grid   16w      REG              253,4      13846    5657394 /u01/app/grid/diag/asm/+asm/+ASM1/trace/+ASM1_dia0_372246_base_1.trm (deleted)
crsd.bin  373237      root   61uw     REG              253,3          0     524846 /var/tmp/.oracle/sprocr_local_conn_0_PROC_lock (deleted)
crsd.bin  373237      root  122uw     REG              253,3          0     524847 /var/tmp/.oracle/sCRSD_IPC_SOCKET_11_lock (deleted)
oracle    373253      grid   11u      REG              253,4        756    5657420 /u01/app/11.2.0/grid/rdbms/audit/+ASM1_ora_373253_20200815180326047345143795.aud (deleted)
oracle    373257      grid   13u      REG              253,4        756    5657421 /u01/app/11.2.0/grid/rdbms/audit/+ASM1_ora_373257_20200815180326173317143795.aud (deleted)
oracle    374115    oracle   16w      REG              253,4        886    5511353 /u01/app/oracle/diag/rdbms/byicdb/byicdb1/trace/byicdb1_ping_374115.trc (deleted)
oracle    374115    oracle   17w      REG              253,4         64    5511356 /u01/app/oracle/diag/rdbms/byicdb/byicdb1/trace/byicdb1_ping_374115.trm (deleted)
oracle    374185    oracle   18w      REG              253,4        877    5511337 /u01/app/oracle/diag/rdbms/byicdb/byicdb1/trace/byicdb1_asmb_374185.trc (deleted)
oracle    374185    oracle   19w      REG              253,4         64    5511338 /u01/app/oracle/diag/rdbms/byicdb/byicdb1/trace/byicdb1_asmb_374185.trm (deleted)
oracle    374197      grid   13u      REG              253,4        758    5657431 /u01/app/11.2.0/grid/rdbms/audit/+ASM1_ora_374197_20200815180410057079143795.aud (deleted)
oracle    399268    oracle    3u      REG              253,5       7241   21495844 /ogg/dirrpt/REP_REQE9.rpt (deleted)
oracle    399268    oracle    5w      REG              253,5   10490459        124 /ogg/ggserr.log.9 (deleted)
oracle    399268    oracle    8w      REG              253,5        740   21495867 /ogg/dirrpt/rep_reqe9.dsc (deleted)

三、解决

1、清理一些必要的无用日志释放空间。

2、重启集群，释放被占用的内存。

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