在巡检数据库的时候，发现grid的安装目录非常大，于是进行了进一步的排查，发现有很多*.l10的日志已经删除了,但是并没有释放,使用lsof命令可以看到

lsof|grep delete

[smisa@smidb11 oraagent_grid]$ sudo lsof |grep delete|grep -E "oraagent|audit"oracle    18375      grid   33w      REG             253,18    10549871    1715713 /oracle/app/11.2.0/grid_1/log/smidb11/agent/crsd/oraagent_grid/oraagent_grid.l10 (deleted)oracle    25466      grid    4w      REG             253,18    10576898    1704191 /oracle/app/11.2.0/grid_1/log/smidb11/agent/ohasd/oraagent_grid/oraagent_grid.l10 (deleted)oracle    25468      grid    4w      REG             253,18    10576898    1704191 /oracle/app/11.2.0/grid_1/log/smidb11/agent/ohasd/oraagent_grid/oraagent_grid.l10 (deleted)。。。。。。oracle    25603      grid    4w      REG             253,18    10576898    1704191 /oracle/app/11.2.0/grid_1/log/smidb11/agent/ohasd/oraagent_grid/oraagent_grid.l10 (deleted)oracle    28628      grid    4w      REG             253,18    10511009    1704519 /oracle/app/11.2.0/grid_1/log/smidb11/agent/crsd/oraagent_grid/oraagent_grid.l10 (deleted)
二节点：
[smisa@smidb12 ~]$ sudo lsof |grep delete|grep -E "oraagent|audit"oracle    15647      grid    4w      REG             253,18    10574076    3150129 /oracle/app/11.2.0/grid_1/log/smidb12/agent/ohasd/oraagent_grid/oraagent_grid.l10 (deleted)oracle    15649      grid    4w      REG             253,18    10574076    3150129 /oracle/app/11.2.0/grid_1/log/smidb12/agent/ohasd/oraagent_grid/oraagent_grid.l10 (deleted)。。。。。。。。oracle    15887      grid    4w      REG             253,18    10543680    3150126 /oracle/app/11.2.0/grid_1/log/smidb12/agent/crsd/oraagent_grid/oraagent_grid.l10 (deleted)

随着grid的运行,此日志会越来越多,最终耗尽内存.通过MOS查找问题，发现名字Bug17034444   

但是发现此Bug还没有补丁，需要申请开发，所以通过自己编写脚本来进行规避，思路如下：

每隔一段时间扫描一下目录，查看是否生成 oraagent_grid.l10文件

如果发现此文件生成，那么在grid自动删除此文件前，提前进行删除，避免grid不会释放文件的bug

脚本如下：

source /home/grid/.bash_profile
HOSTNAME=`hostname`
LOGFILE1=/oracle/app/11.2.0/grid_1/log/${HOSTNAME}/agent/crsd/oraagent_grid/oraagent_grid.l10
LOGFILE2=/oracle/app/11.2.0/grid_1/log/${HOSTNAME}/agent/ohasd/oraagent_grid/oraagent_grid.l10
LISTENER_XML_LOG=/oracle/app/grid/diag/tnslsnr/${HOSTNAME}/listener/alert/log_*.xml
LISTENER_TRACE_FILE=/oracle/app/grid/diag/tnslsnr/${HOSTNAME}/listener/trace/listener.log
DATETIME=`date +%Y%m%d%H%M%S`
echo "${DATETIME} Is Run!" >>/home/grid/script/clearlog.log
if [ -e ${LOGFILE1} ] ; then
  rm -rf ${LOGFILE1}
  echo "${LOGFILE1} Deleted!">>/home/grid/script/clearlog.log
fi
if [ -e ${LOGFILE2} ] ; then
  rm -rf ${LOGFILE2}
  echo "${LOGFILE2} Deleted!">>/home/grid/script/clearlog.log
fi
FILE_CNT=`ls -l /oracle/app/grid/diag/tnslsnr/${HOSTNAME}/listener/alert/|wc -l`
if [ ${FILE_CNT} -gt 100 ] ; then
  ls -lrt ${LISTENER_XML_LOG}>>/home/grid/script/clearlog.log
  rm -rf ${LISTENER_XML_LOG}
fi
if [ `du -sk|awk '{print $1}'` -gt 1073741824 ] ; then
  echo "${LISTENER_TRACE_FILE} Clear!!">>/home/grid/script/clearlog.log
  >${LISTENER_TRACE_FILE}
fi
exit 0

使用的时候需要将前面的几个变量修改为当前服务器对应的值，此脚本除了会删除 *.l10的日志文件以外,还会自动清除监听日志.

Oracle官方描述: