File related commands
1) find text in the matching files and show the filename with the pattern. The below example shows the list of filenames and the location of the hostname in those files, which will be helpful when changing hostnames for your websphere installation.
find . -name ‘*.xml’ -print | xargs grep ‘hostName’ /dev/null
bash-2.05b# find /usr/IBM/WebSphere/AppServer/profiles/AppSrv01/config/ -name ‘server*.xml’ -print | xargs grep ‘hostName’ /dev/null | more
/usr/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/portalserverCell01/nodes/portalserverNode01/serverindex.xml:<SERVERINDEX:ServerIndex xmi:version=”2.0″ xmlns:xmi=”http://www.omg.org/XMI” xmlns:serverindex=”http://www.ibm.com/websphere/appserver/schemas/5
.0/serverindex.xmi” xmi:id=”ServerIndex_1″ hostName=”portalserver.example.com” endPointRefs=”NamedEndPoint_1130375480667 NamedE
ndPoint_1130375480668 NamedEndPoint_1130375480669 NamedEndPoint_1130375480670 NamedEndPoint_1130375480671 NamedEndPoint_113037548067
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Network related Commands
1)
a) dig (domain information groper) – is a flexible tool for interrogating DNS name servers.
b) nslookup – Queries a name server for a host or domain lookup.
c) host – DNS lookup uility.
The below example shows the information like CNAME , Aliases, ipaddres , etc about www.google.com
a) dig
bash-2.05b# dig www.google.com
; <<>> DiG 9.2.4 <<>> www.google.com
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 1088
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 7, ADDITIONAL: 0
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Disk Usage related Commands to monitor Disk space
1)Disk Usage on all mounts
df -h -T
Filesystem Type Size Used Avail Use% Mounted on
/dev/sda1 ext3 2.9G 785M 2.0G 29% /
/dev/sda7 ext3 57G 9.3G 45G 18% /cust
/dev/sda6 ext3 2.0G 82M 1.8G 5% /lc
none tmpfs 5.7G 0 5.7G 0% /dev/shm
/dev/sda5 ext3 2.0G 33M 1.8G 2% /tmp
/dev/sda3 ext3 2.0G 64M 1.8G 4% /var
2)prints just one line with the total size of the directory, the below example show the size of the /usr/IBM/Websphere WebSphere Portal Server directory.
du -ch | grep total
bash-2.05b# du -ch | grep total
6.3G total
Performance related Commands to monitor system performance:
1) Find the process that uses most CPU
ps -eo pcpu,pid,user,args | sort -k 1 -r | head -2
(eg) output of the above command when websphere server process is utilizing the most of the CPU
%CPU PID USER COMMAND
71.7 31237 root /cust/IBM/WebSphere/AppServer/java/bin/java
-Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere
/AppServer/java/jre/lib/ext/ibmext.jar
-Dwas.status.socket=54859 -classpath
/cust/IBM/WebSphere/AppServer/profiles/AppSrv02/properties:/cust/IBM/WebSphere/AppSer
2) Find the last 10 process that use the most CPU
ps -eo pcpu,pid,user,args | sort -k 1 -r | head -10
%CPU PID USER COMMAND
2.1 6375 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=2132 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppServ
0.3 13886 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=25042 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppSer
0.2 17271 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=9606 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppServ
0.2 17871 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=9606 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppServ
0.2 17713 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=9140 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppServ
0.1 18499 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=11309 -classpath /cust/IBM/WebSphere/AppServer/profiles/AppSrv01/properties:/cust/IBM/WebSphere/AppSer
0.1 17504 root /cust/IBM/WebSphere/AppServer/java/bin/java -Xbootclasspath/p:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmorb.jar:/cust/IBM/WebSphere/AppServer/java/jre/lib/ext/ibmext.jar -Dwas.status.socket=8969 -classpath /cust/IBM/WebSphere/AppServer/profiles/Dmgr01/properties:/cust/IBM/WebSphere/AppServer
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