Re: soap web service (axis based) on tomcat 8

tomcat Sat, 19 Sep 2015 07:00:54 -0700

On 19.09.2015 02:20, jennifer zhou wrote:

Hi,


   Our app was running well on Tomcat 7 on linux. Recently we migrated to
Tomcat 8 on linux. However we found the system CPU usage is higher than
normal. When there is no any user interaction, we still see about 25% of
the system CPU usage. After deep dive, we found the tomcat keeps scanning
our app's class path under WEB-INF folder. Actually all our artifacts are
packed within WEB-INF/lib folder, there is nothing within WEB-INF/classes
folder. Is there any way to look for WEB-INF/lib folder first before
looking for artifacts within WEB-INF/classes folder?

Also why does Tomcat keeps scanning our app classpath during app idle time?
Is there anyway to turn this off?


Quick pointer :
http://tomcat.apache.org/tomcat-8.0-doc/config/host.html#Standard_Implementation
See "autoDeploy" (default is true)

If you set this to "false", does the same still happen ?


The detailed information is shown as below for your references.

7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/org",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/org",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/org",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/org",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/com",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin", {st_mode=S_IFDIR|0700, st_size=4096, ...}) =
0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24", {st_mode=S_IFDIR|0700,
st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196  lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes",
{st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0
7196
lstat("/home/jgu-admin/apache-tomcat-8.0.24/webapps/IDManager/WEB-INF/classes/com",
0x2b9a564eb2b0) = -1 ENOENT (No such file or directory)
7196  lstat("/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0

Thanks,
Jennifer



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Re: soap web service (axis based) on tomcat 8

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