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siteadm 2007 1 7 11:04 pts/0 00:00:00
/data/java/jdk1.8.0_121/bin/java
-Djava.util.logging.config.file=/data/tomcat/AgencyWebApp/conf/logging.properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-Daccuity.servername=mavs01web11q
-Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false
-Djdk.tls.ephemeralDHKeySize=2048
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources -classpath
/data/tomcat/apache-tomcat/bin/bootstrap.jar:/data/tomcat/apache-tomcat/bin/tomcat-juli.jar
-Dcatalina.base=/data/tomcat/AgencyWebApp
-Dcatalina.home=/data/tomcat/apache-tomcat
-Djava.io.tmpdir=/data/tomcat/AgencyWebApp/temp
org.apache.catalina.startup.Bootstrap start
My kernel is 2.6.32-642.15.1.elf.x86_64
Memory gets all allocated and after I kill it only a portion is recovered.
Any ideas?
top - 11:18:36 up 16 min, 2 users, load average: 1.92, 1.39, 0.68
Tasks: 123 total, 1 running, 122 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.7%us, 0.0%sy, 0.0%ni, 99.3%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 16334352k total, 11215624k used, 5118728k free, 33788k buffers
Swap: 4128764k total, 0k used, 4128764k free, 313940k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1931 siteadm 20 0 105m 2120 1568 S 0.0 0.0 0:00.10 bash
2319 siteadm 20 0 19288 1460 1092 R 0.0 0.0 0:00.09 top
Sent from Yahoo Mail for iPhone
On Friday, March 17, 2017, 8:54 AM, Christopher Schultz
<ch...@christopherschultz.net> wrote:
-----BEGIN PGP SIGNED MESSAGE-----
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Eric,
On 3/16/17 11:01 PM, Eric Chua wrote:
> I am running tomcat 8.0.121. When I start my tomcat, it seems to
> be eating up all the memory on my system. I have 16 GB, and it
> keeps on going.
What are your memory-related parameters when you launch the JVM?
Note that Java *never* gives any memory back to the OS, even when the
heap-usage goes down. This is a Java thing, not a Tomcat thing.
> Then when I try to kill the process, it dies but 12 GB is still
> being used even though everything is turn off.
That makes no sense at all. Please provide some evidence this is
happening.
> The only way to reclaim the memory is to reboot.
If this is true, then you have some kind of awful kernel bug.
> I am running on redhat 6.5 and can't figure out what could be
> causing this. I run the tomcat as a local user, and I know there
> aren't any other processes running as the local user. I am running
> a spring MVC 4/Java 8/ struts web application. I have two of them
> with the same issue. Any help would be appreciated. When I try to
> view all the running processes I cannot see where most of the 12 gb
> are being used. The system came up with 2.2 gb used and after I
> start one web application it goes to 14-15gb.
Ok.
> The funny thing is that I can kill it to reclaim the memory. Only
> a reboot works.
You mean you CAN'T kill in to reclaim memory, right?
> I am running a VMware instance with vcenter version 6.5. This
> does not happen with Java 7 with tomcat 7. Any help would be
> appreciate.
Something tells me you are reading or interpreting something
incorrectly, here. Can you please share your raw data, and where you
got that raw data? Something like reports from free/ps/top/sar/etc.?
- -chris
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