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--- litespeed_wiki:troubleshooting:advanced-lsof [2018/09/10 20:03]
Jackson Zhang
+++ litespeed_wiki:troubleshooting:advanced-lsof [2018/09/10 20:25] (current)
Lisa Clarke Proofreading
@@ Line 1: / Line 1: @@
-====== Use lsof to check files openned by a process ======
+====== Use lsof to Find Files Opened by a Process ======
-"lsof" meaning ‘LiSt Open Files’ is used to find out which files are open by which process. As we all know Linux/Unix considers everything as files (pipes, sockets, directories, devices etc). One of the reason to use lsof command is to find out if there is any file system problem.
+''lsof'', meaning "LiSt Open Files," is used to find out which files are opened by which processes. As we all know, Linux/Unix considers everything to be a file (pipes, sockets, directories, devices etc). One of the reason to use the lsof command is to find out if there is any file system problem.
-For example, we see some processes like the following in CloudLinux Environment.
+For example, we see some processes like the following in a CloudLinux environment:
   lscgid -n 161
-and lscgid is constantly running 100%CPU
+and ''lscgid'' is constantly running 100%CPU
   1193334 root 20 0 15180 980 788 R 100.0 0.0 0:53.02 lscgid
-   lsof -p pid
+  lsof -p pid
-Looks like cagefs mount points messed up. It tries to an endless file under /proc,
+Looks like cagefs mount points are messed up. It tries to use an endless file under ''/proc'',
-# more /proc/1204041/mounts
+  more /proc/1204041/mounts
   1204041 is live 100% cpu lscgid process.
-it has endless
+it is endless
   /dev/mapper/centos_linux2-root /var/cagefs/78/tahacocukoyunpar/var/cpanel/userdata/tahacocukoyunpar xfs rw,nosuid,relatime,attr2,inode64,usrquota 0 0
@@ Line 27: / Line 27: @@
   /dev/mapper/centos_linux2-root /usr/share/cagefs-skeleton/var/cpanel/userdata/tahacocukoyunpar xfs rw,nosuid,relatime,attr2,inode64,usrquota 0 0
-Try `cagefsctl --force-update` and lscgid process can finish now but CPU usage is still high. The user will need to contact CloudLinux support for the cagefs mount problem.
+Try ''cagefsctl --force-update'', and lscgid process can finish now, but CPU usage is still high. The user will need to contact CloudLinux support for the cagefs mount problem.
-**'lscgid -n xxx'** is for LitesSeed to start a Suexec PHP processes and use lscgid to gain root then change user id. Usually, it will immediately execute PHP binary, so won't see it running normally.
+''lscgid -n xxx'' is used by LiteSpeed to start a Suexec PHP process, use lscgid to gain root, then change user id. Under normal circumstances, it will immediately execute the PHP binary, so you won't see it running.