André,

On 5/26/21 05:12, André Warnier (tomcat/perl) wrote:
Maybe I am missing something, but at first sight it looks like lsof, inside the container, can also not get more information about these "sock" things.

I am running out of ideas.
If you search in Google for precisely this :

lsof "sock" and "protocol : TCP"

there are a lot of links which discuss similar issues, and this over many years.
(So it is not either a unique or a recent issue).

They all seem to boil down to this : some *application* is opening sockets, but then not really using them (and not closing them).

In your case, that probably means one of the webapps running under tomcat.

Maybe a database connection pool? Or a REST service that the server code is calling-out to? Or an SMTP connection? Or a JMS queue? Or, or, or..

It seems quite unlikely that this would be tomcat itself, because if that was the case, this tomcat users list would probably be swamped with requests such as yours; which it isn't.

+1

-chris

On 26.05.2021 00:03, Yeggy Javadi wrote:
Hi,
Below is the nsenter output:

# ps -ef | grep tomcat
root      165217       1  1 10:22 ?        00:05:33 /usr/local/jre/bin/java -Djava.util.logging.config.file=/usr/local/apache-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -d64 -server -Xms1800m -Xmx8192m -XX:MaxMetaspaceSize=1800m -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /usr/local/apache-tomcat/bin/bootstrap.jar:/usr/local/apache-tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat -Dcatalina.home=/usr/local/apache-tomcat -Djava.io.tmpdir=/usr/local/apache-tomcat/temp org.apache.catalina.startup.Bootstrap start root      167329  167268  0 18:00 pts/1    00:00:00 grep --color=auto tomcat

# nsenter -t 165217 --net lsof -n -p 165217 |less
COMMAND    PID USER   FD      TYPE             DEVICE SIZE/OFF NODE NAME java    165217 root  cwd       DIR                8,2     4096 157664 /usr/local/freestor/bin
java    165217 root  rtd       DIR                8,3     4096        2 /
java    165217 root  txt       REG                8,2     8712 8913 /usr/local/jdk/jre1.8.0_271/bin/java java    165217 root  mem       REG                8,2   113371 160881 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/hibernate-jpa-2.1-api-1.0.0.Final.jar java    165217 root  mem       REG                8,2   147874 160802 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/activemq-protobuf-1.1.jar java    165217 root  mem       REG                8,2   391515 160836 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/lucene-queryparser-4.10.4.jar java    165217 root  mem       REG                8,2   868615 160813 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/spring-context-3.2.17.RELEASE.jar java    165217 root  mem       REG                8,2     9711 160792 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/slf4j-log4j12-1.6.6.jar java    165217 root  mem       REG                8,2   196573 160819 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/spring-expression-3.2.17.RELEASE.jar java    165217 root  mem       REG                8,2    97173 160843 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/lucene-misc-4.10.4.jar java    165217 root  mem       REG                8,2    10074 160872 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/batik-ext-1.11.jar java    165217 root  mem       REG                8,2    62983 160861 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/activation-1.1.jar java    165217 root  mem       REG                8,2   371668 160812 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/spring-security-core-3.2.9.RELEASE.jar java    165217 root  mem       REG                8,2   645914 160754 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/hibernate-entitymanager-4.3.5.Final.jar java    165217 root  mem       REG                8,2   427030 160753 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/hibernate-envers-4.3.5.Final.jar java    165217 root  mem       REG                8,2   256468 160829 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/barcode4j-2.0.jar java    165217 root  mem       REG                8,2   489884 160846 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/log4j-1.2.17.jar java    165217 root  mem       REG                8,2    29257 160798 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/slf4j-api-1.7.7.jar java    165217 root  mem       REG                8,2   422612 160783 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/batik-awt-util-1.11.jar java    165217 root  mem       REG                8,2    16519 160796 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/jcl-over-slf4j-1.7.7.jar java    165217 root  mem       REG                8,2   322362 160851 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/cglib-nodep-2.2.jar java    165217 root  mem       REG                8,2   864598 160848 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/castor-1.2.jar java    165217 root  mem       REG                8,2   434678 160748 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/commons-lang3-3.4.jar java    165217 root  mem       REG                8,2   325196 160785 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/batik-css-1.11.jar java    165217 root  mem       REG                8,2  5230007 160755 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/hibernate-core-4.3.5.Final.jar java    165217 root  mem       REG                8,2 14041249 160763 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/elasticsearch-1.7.5.jar java    165217 root  mem       REG                8,2   206385 160749 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/spring-jms-3.2.17.RELEASE.jar java    165217 root  mem       REG                8,2    64021 160837 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/lucene-join-4.10.4.jar java    165217 root  mem       REG                8,2   714194 160828 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/javassist-3.18.1-GA.jar java    165217 root  mem       REG                8,2   279193 160876 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/commons-lang-2.5.jar java    165217 root  mem       REG                8,2    75311 160826 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/hibernate-commons-annotations-4.0.4.Final.jar java    165217 root  mem       REG                8,2   436303 160745 /usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/avro-1.7.7.jar
................
java    165217 root   73w     FIFO               0,13      0t0 16786125 pipe java    165217 root   74u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   75r     FIFO               0,13      0t0 16786126 pipe java    165217 root   76w     FIFO               0,13      0t0 16786126 pipe java    165217 root   77u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   78u     sock                0,9      0t0 16961335 protocol: TCPv6 java    165217 root   79r     FIFO               0,13      0t0 16786127 pipe java    165217 root   80w     FIFO               0,13      0t0 16786127 pipe java    165217 root   81u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   82r     FIFO               0,13      0t0 16786128 pipe java    165217 root   83w     FIFO               0,13      0t0 16786128 pipe java    165217 root   84u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   86r     FIFO               0,13      0t0 16786129 pipe java    165217 root   87w     FIFO               0,13      0t0 16786129 pipe java    165217 root   88u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   89r     FIFO               0,13      0t0 16786130 pipe java    165217 root   90w     FIFO               0,13      0t0 16786130 pipe java    165217 root   91u  a_inode               0,14        0 10970 [eventpoll] java    165217 root   93u     IPv6           16786133      0t0 TCP 127.0.0.1:mxi (LISTEN) java    165217 root   94u     sock                0,9      0t0 16963075 protocol: TCPv6 java    165217 root   96u     sock                0,9      0t0 16824649 protocol: TCPv6 java    165217 root   97u     IPv6           17051898      0t0 TCP 10.4.3.55:60204->172.22.22.192:https (ESTABLISHED) java    165217 root   98u     sock                0,9      0t0 16824673 protocol: TCPv6 java    165217 root   99u     sock                0,9      0t0 16824711 protocol: TCPv6 java    165217 root  100u     sock                0,9      0t0 16893245 protocol: TCPv6 java    165217 root  101u     sock                0,9      0t0 16824385 protocol: TCPv6 java    165217 root  102u     sock                0,9      0t0 16824264 protocol: TCPv6 java    165217 root  103u     sock                0,9      0t0 16824278 protocol: TCPv6 java    165217 root  104u     sock                0,9      0t0 16824279 protocol: TCPv6 java    165217 root  105u     sock                0,9      0t0 16824063 protocol: TCPv6 java    165217 root  106u     sock                0,9      0t0 16823982 protocol: TCPv6 java    165217 root  107u     sock                0,9      0t0 16823959 protocol: TCPv6 java    165217 root  108r      CHR                1,8      0t0 1041 /dev/random java    165217 root  109u     sock                0,9      0t0 16778709 protocol: TCPv6 java    165217 root  110w      REG                8,6 25506176 1835053 /apps/apache-tomcat/logs/fms.log java    165217 root  111w      REG                8,6   919042 1835019 /apps/apache-tomcat/logs/obd.log java    165217 root  112u     sock                0,9      0t0 16823821 protocol: TCPv6 java    165217 root  113u     sock                0,9      0t0 16823822 protocol: TCPv6 java    165217 root  114u     sock                0,9      0t0 16823633 protocol: TCPv6 java    165217 root  115u     sock                0,9      0t0 16823527 protocol: TCPv6 java    165217 root  116u     sock                0,9      0t0 16823489 protocol: TCPv6 java    165217 root  117u     sock                0,9      0t0 16823490 protocol: TCPv6 java    165217 root  118u     sock                0,9      0t0 16823491 protocol: TCPv6
..................

Thanks

-----Original Message-----
From: André Warnier (tomcat/perl) <a...@ice-sa.com>
Sent: Tuesday, May 25, 2021 12:42 PM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Hi.
The point is to try to figure out what these thousands of apparently "TCPv6" sockets belonging to the tomcat process actually are, so that we can maybe begin to look at where
they may be coming from.
The trouble is, the lsof output so far did not really tell us what these "sock" things
might be.

But there may be a clue here :
https://serverfault.com/questions/1000338/in-lsof-output-what-are-those-sock-lines
(about when things run in a container).
Is that your case ?
And if so, could you run the lsof command in the container, as they suggest ?

And the point of forcing a tomcat/JVM GC was this :
When you restart tomcat (actually the JVM which runs tomcat), the OS will clean up *all* the file descriptors belonging to that process, including the "legitimate" ones shown by
netstat, and the "unknown" ones shown in addition by lsof.
Doing a GC, without stopping the JVM, would clean up *only* such sockets/fd that are held by objects which are discarded, but still sit on the heap awaiting a GC to really destroy them.  If your heap is very large, it may otherwise take a long while before such a GC
happens, and such sockets could accumulate.
One way to trigger a GC is through JMX, but it takes a bit of additional setup to make
that work. That's why I was asking if you had some method to do that.
(see : https://code.google.com/archive/p/jmxsh/)
But let's look at the lsof part first.



On 24.05.2021 16:09, Yeggy Javadi wrote:
Hi,
I restarted tomcat so PID has changed to 143152; I do not know how to trigger tomcat GC, I just restart it to reset the lsof to 0.
Please see outputs below:

# ps -ef | grep tomcat
root      143152       1  0 May22 ?        00:26:44 /usr/local/jre/bin/java -Djava.util.logging.config.file=/usr/local/apache-tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -d64 -server -Xms1800m -Xmx8192m -XX:MaxMetaspaceSize=1800m -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /usr/local/apache-tomcat/bin/bootstrap.jar:/usr/local/apache-tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat -Dcatalina.home=/usr/local/apache-tomcat -Djava.io.tmpdir=/usr/local/apache-tomcat/temp org.apache.catalina.startup.Bootstrap start root      153962  153912  0 10:00 pts/1    00:00:00 grep --color=auto tomcat

# lsof -p 143152 | wc -l
41043

# lsof -p 143152 | grep "protocol: TCPv6"| wc -l
40487

# netstat -p -a -n --inet6 | grep 143152
tcp6       0      0 :::8443                 :::* LISTEN      143152/java tcp6       0      0 :::443                  :::* LISTEN      143152/java tcp6       0      0 127.0.0.1:8005          :::* LISTEN      143152/java tcp6       0      0 :::1099                 :::* LISTEN      143152/java tcp6       0      0 :::80                   :::* LISTEN      143152/java tcp6       0      0 :::36081                :::* LISTEN      143152/java tcp6       0      0 10.4.3.55:60736         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60732         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60728         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:80            10.197.255.10:55446 ESTABLISHED 143152/java tcp6       1      0 10.4.3.55:55958         10.4.3.55:11576 CLOSE_WAIT  143152/java tcp6       0      0 10.4.3.55:53682         172.22.21.48:443 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:48622         127.0.0.1:5432 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60748         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       1      0 10.4.3.55:55956         10.4.3.55:11576 CLOSE_WAIT  143152/java tcp6       0      0 10.4.3.55:40574         172.22.21.47:443 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:48620         127.0.0.1:5432 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:53782         172.22.21.48:443 ESTABLISHED 143152/java tcp6       0      1 10.4.3.55:49808         10.12.3.78:443 SYN_SENT    143152/java tcp6       0      0 10.4.3.55:60730         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60750         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60742         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60746         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:48624         127.0.0.1:5432 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60734         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60226         172.22.22.192:443 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:52312         127.0.0.1:5432 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:57302         127.0.0.1:11753 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60738         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60740         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:80            10.197.255.10:55444 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:46976         127.0.0.1:9300 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:40540         172.22.21.47:443 ESTABLISHED 143152/java tcp6       0      0 127.0.0.1:52310         127.0.0.1:5432 ESTABLISHED 143152/java tcp6       0      0 10.4.3.55:60726         10.4.3.55:9300 ESTABLISHED 143152/java tcp6       0    669 10.4.3.55:60744         10.4.3.55:9300 ESTABLISHED 143152/java

# lsof -a -p 143152 -T s -i6
COMMAND    PID USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
java    143152 root   58u  IPv6 13816226      0t0  TCP *:http (LISTEN)
java    143152 root   63u  IPv6 13816230      0t0  TCP *:https (LISTEN)
java    143152 root   82u  IPv6 13816325      0t0  TCP localhost.localdomain:mxi (LISTEN) java    143152 root   84u  IPv6 13874431      0t0  TCP localhost.localdomain:52310->localhost.localdomain:postgres (ESTABLISHED) java    143152 root   86u  IPv6 13848367      0t0  TCP localhost.localdomain:52312->localhost.localdomain:postgres (ESTABLISHED) java    143152 root  215u  IPv6 13822102      0t0  TCP localhost.localdomain:48620->localhost.localdomain:postgres (ESTABLISHED) java    143152 root  216u  IPv6 13823064      0t0  TCP localhost.localdomain:48624->localhost.localdomain:postgres (ESTABLISHED) java    143152 root  217u  IPv6 13821107      0t0  TCP localhost.localdomain:48622->localhost.localdomain:postgres (ESTABLISHED) java    143152 root  269u  IPv6 13824001      0t0  TCP localhost.localdomain:46976->localhost.localdomain:vrace (ESTABLISHED) java    143152 root  270u  IPv6 13787907      0t0  TCP Yeggy-F8-FMSVA:60726->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  271u  IPv6 13787908      0t0  TCP Yeggy-F8-FMSVA:60728->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  272u  IPv6 13787909      0t0  TCP Yeggy-F8-FMSVA:60730->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  273u  IPv6 13787910      0t0  TCP Yeggy-F8-FMSVA:60732->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  274u  IPv6 13787911      0t0  TCP Yeggy-F8-FMSVA:60734->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  275u  IPv6 13787912      0t0  TCP Yeggy-F8-FMSVA:60736->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  276u  IPv6 13787913      0t0  TCP Yeggy-F8-FMSVA:60738->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  277u  IPv6 13787914      0t0  TCP Yeggy-F8-FMSVA:60740->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  278u  IPv6 13787915      0t0  TCP Yeggy-F8-FMSVA:60742->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  279u  IPv6 13787916      0t0  TCP Yeggy-F8-FMSVA:60744->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  280u  IPv6 13787917      0t0  TCP Yeggy-F8-FMSVA:60746->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  281u  IPv6 13787918      0t0  TCP Yeggy-F8-FMSVA:60748->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  282u  IPv6 13787919      0t0  TCP Yeggy-F8-FMSVA:60750->Yeggy-F8-FMSVA:vrace (ESTABLISHED) java    143152 root  293u  IPv6 13821122      0t0  TCP *:rmiregistry (LISTEN)
java    143152 root  294u  IPv6 13816318      0t0  TCP *:36081 (LISTEN)
java    143152 root  304u  IPv6 13787923      0t0  TCP *:pcsync-https (LISTEN) java    143152 root *740u  IPv6 15607907      0t0  TCP Yeggy-F8-FMSVA:53366->172.22.21.48:https (ESTABLISHED) java    143152 root *876u  IPv6 15608779      0t0  TCP Yeggy-F8-FMSVA:40328->172.22.21.47:https (ESTABLISHED) java    143152 root *881u  IPv6 15614275      0t0  TCP Yeggy-F8-FMSVA:59970->172.22.22.192:https (ESTABLISHED) java    143152 root *882u  IPv6 15558639      0t0  TCP Yeggy-F8-FMSVA:53526->172.22.21.48:https (ESTABLISHED) java    143152 root *067u  IPv6 15602583      0t0  TCP Yeggy-F8-FMSVA:http->10.197.255.10:55037 (ESTABLISHED) java    143152 root *070u  IPv6 15602586      0t0  TCP Yeggy-F8-FMSVA:40318->Yeggy-F8-FMSVA:36081 (ESTABLISHED) java    143152 root *073u  IPv6 15602582      0t0  TCP Yeggy-F8-FMSVA:http->10.197.255.10:55036 (ESTABLISHED) java    143152 root *080u  IPv6 15512947      0t0  TCP Yeggy-F8-FMSVA:55956->Yeggy-F8-FMSVA:11576 (CLOSE_WAIT) java    143152 root *081u  IPv6 15512948      0t0  TCP Yeggy-F8-FMSVA:55958->Yeggy-F8-FMSVA:11576 (CLOSE_WAIT) java    143152 root *817u  IPv6 15611323      0t0  TCP Yeggy-F8-FMSVA:36081->Yeggy-F8-FMSVA:40318 (ESTABLISHED) java    143152 root *818u  IPv6 15602584      0t0  TCP Yeggy-F8-FMSVA:http->10.197.255.10:55039 (ESTABLISHED)

Thank

-----Original Message-----
From: André Warnier (tomcat/perl) <a...@ice-sa.com>
Sent: Sunday, May 23, 2021 6:30 PM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Hi.

I have no idea what lines like this are :
java    130244 root   78u     sock                0,9      0t0 12154374 protocol: TCPv6

There are obviously too many of them, for them to match with the sockets listed by netstat.

The ones which in the lsof output, have "TYPE" set to "IPv6" seem to correspond to the
ones marked as "LISTEN" in the netstat output.
But the ones with TYPE="sock" and NAME="protocol: TCPv6" are a mystery to me.

Could you redo a netstat as follows :
# netstat -p -a -n --inet6 | grep 130244

and can you also try this form of lsof :
# lsof -a -p 130244 -T s -i6

And finally (after copying the result of the above) : do you know how to trigger a GC
(Garbage Collection) in your tomcat JVM ?
(the point is to see if when a GC happens, these things disappear).


On 22.05.2021 18:03, Yeggy Javadi wrote:
Here it is:

# netstat -p -a  --tcp | grep 130244
tcp6       0      0 [::]:pcsync-https       [::]:* LISTEN      130244/java tcp6       0      0 [::]:https              [::]:* LISTEN      130244/java tcp6       0      0 [::]:37537              [::]:* LISTEN      130244/java tcp6       0      0 localhost.localdoma:mxi [::]:* LISTEN      130244/java tcp6       0      0 [::]:8009               [::]:* LISTEN      130244/java tcp6       0      0 [::]:rmiregistry        [::]:* LISTEN      130244/java tcp6       0      0 [::]:http               [::]:* LISTEN      130244/java tcp6      86      0 Yeggy-F8-FMSVA:39680    172.22.22.192:https CLOSE_WAIT  130244/java tcp6       0      1 Yeggy-F8-FMSVA:53618    10.12.3.78:https SYN_SENT    130244/java tcp6       0      0 Yeggy-F8-FMSVA:54772    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42664 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54782    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54766    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42662 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54778    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54788    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54770    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54790    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54776    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54786    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54780    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:45736 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54768    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54784    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42660 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      1 Yeggy-F8-FMSVA:42922    10.12.3.77:https SYN_SENT    130244/java tcp6       0      0 Yeggy-F8-FMSVA:35794    172.22.22.192:https ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54774    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:45734 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:41016 localhost.localdo:vrace ESTABLISHED 130244/java


# lsof -p 130244
COMMAND    PID USER   FD      TYPE             DEVICE SIZE/OFF NODE NAME java    130244 root  cwd       DIR                8,2     4096 157664 /usr/local/freestor/bin java    130244 root  rtd       DIR                8,3 4096        2 / java    130244 root  txt       REG                8,2     8712 8913 /usr/local/jdk/jre1.8.0_271/bin/java java    130244 root  mem       REG                8,2   498864 9007 /usr/local/jdk/jre1.8.0_271/lib/amd64/libfontmanager.so java    130244 root  mem       REG                8,2    39176 9006 /usr/local/jdk/jre1.8.0_271/lib/amd64/libawt_headless.so java    130244 root  mem       REG                8,2   759184 8996 /usr/local/jdk/jre1.8.0_271/lib/amd64/libawt.so java    130244 root  mem       REG                8,2  3559360 9139 /usr/local/jdk/jre1.8.0_271/lib/resources.jar java    130244 root  mem       REG                8,2    99680 133076 /usr/lib64/libgcc_s-8-20191121.so.1 java    130244 root  mem       REG                8,2  3135658 9133 /usr/local/jdk/jre1.8.0_271/lib/charsets.jar java    130244 root  mem       REG                8,2   283368 8980 /usr/local/jdk/jre1.8.0_271/lib/amd64/libsunec.so java    130244 root  mem       REG                8,2  1907341 9138 /usr/local/jdk/jre1.8.0_271/lib/jsse.jar java    130244 root  mem       REG                8,2   285868 9126 /usr/local/jdk/jre1.8.0_271/lib/ext/sunjce_provider.jar java    130244 root  mem       REG                8,2    43191 9125 /usr/local/jdk/jre1.8.0_271/lib/ext/sunec.jar java    130244 root  mem       REG                8,2   283206 9127 /usr/local/jdk/jre1.8.0_271/lib/ext/sunpkcs11.jar java    130244 root  mem       REG                8,2   118047 9136 /usr/local/jdk/jre1.8.0_271/lib/jce.jar java    130244 root  mem       REG                8,2  1179462 9128 /usr/local/jdk/jre1.8.0_271/lib/ext/localedata.jar java    130244 root  mem       REG                8,2  3860563 9129 /usr/local/jdk/jre1.8.0_271/lib/ext/cldrdata.jar java    130244 root  mem       REG                8,2    51984 8995 /usr/local/jdk/jre1.8.0_271/lib/amd64/libmanagement.so java    130244 root  mem       REG                8,2    12373 8871 /usr/local/apache-tomcat-8.5.59/lib/annotations-api.jar java    130244 root  mem       REG                8,2   169952 8868 /usr/local/apache-tomcat-8.5.59/lib/tomcat-util.jar java    130244 root  mem       REG                8,2   168382 8867 /usr/local/apache-tomcat-8.5.59/lib/jasper-el.jar java    130244 root  mem       REG                8,2   244451 8862 /usr/local/apache-tomcat-8.5.59/lib/servlet-api.jar java    130244 root  mem       REG                8,2   148761 8881 /usr/local/apache-tomcat-8.5.59/lib/tomcat-jdbc.jar java    130244 root  mem       REG                8,2    62004 8863 /usr/local/apache-tomcat-8.5.59/lib/jsp-api.jar java    130244 root  mem       REG                8,2  2450404 8864 /usr/local/apache-tomcat-8.5.59/lib/ecj-4.6.3.jar java    130244 root  mem       REG                8,2    34798 8873 /usr/local/apache-tomcat-8.5.59/lib/tomcat-jni.jar java    130244 root  mem       REG                8,2    78087 8886 /usr/local/apache-tomcat-8.5.59/lib/catalina-storeconfig.jar java    130244 root  mem       REG                8,2    89695 8877 /usr/local/apache-tomcat-8.5.59/lib/el-api.jar java    130244 root  mem       REG                8,2   599431 8884 /usr/local/apache-tomcat-8.5.59/lib/jasper.jar java    130244 root  mem       REG                8,2   174393 8870 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ja.jar java    130244 root  mem       REG                8,2   294856 8861 /usr/local/apache-tomcat-8.5.59/lib/catalina-tribes.jar java    130244 root  mem       REG                8,2   173282 8880 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ko.jar java    130244 root  mem       REG                8,2   284036 8872 /usr/local/apache-tomcat-8.5.59/lib/tomcat-dbcp.jar java    130244 root  mem       REG                8,2    72656 8865 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-de.jar java    130244 root  mem       REG                8,2    54667 8878 /usr/local/apache-tomcat-8.5.59/lib/catalina-ant.jar java    130244 root  mem       REG                8,2  1705863 8860 /usr/local/apache-tomcat-8.5.59/lib/catalina.jar java    130244 root  mem       REG                8,2    38241 8882 /usr/local/apache-tomcat-8.5.59/lib/websocket-api.jar java    130244 root  mem       REG                8,2   106051 8869 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-es.jar java    130244 root  mem       REG                8,2   120073 8876 /usr/local/apache-tomcat-8.5.59/lib/catalina-ha.jar java    130244 root  mem       REG                8,2   228391 8879 /usr/local/apache-tomcat-8.5.59/lib/tomcat-websocket.jar java    130244 root  mem       REG                8,2   868336 8888 /usr/local/apache-tomcat-8.5.59/lib/tomcat-coyote.jar java    130244 root  mem       REG                8,2   215400 8874 /usr/local/apache-tomcat-8.5.59/lib/tomcat-util-scan.jar java    130244 root  mem       REG                8,2   155094 8866 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-fr.jar java    130244 root  mem       REG                8,2    26872 8885 /usr/local/apache-tomcat-8.5.59/lib/jaspic-api.jar java    130244 root  mem       REG                8,2   113008 8989 /usr/local/jdk/jre1.8.0_271/lib/amd64/libnet.so java    130244 root  mem       REG                8,2    93872 9003 /usr/local/jdk/jre1.8.0_271/lib/amd64/libnio.so java    130244 root  mem       REG                8,2   337024 395971 /usr/lib/locale/en_US.utf8/LC_CTYPE java    130244 root  mem       REG                8,2  2586930 390297 /usr/lib/locale/en_US.utf8/LC_COLLATE java    130244 root  mem       REG                8,2    10673 8887 /usr/local/apache-tomcat-8.5.59/lib/tomcat-api.jar java    130244 root  mem       REG                8,2    38561 8875 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ru.jar java    130244 root  mem       REG                8,2   158590 8883 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-zh-CN.jar java    130244 root  mem       REG                8,2    51205 8857 /usr/local/apache-tomcat-8.5.59/bin/tomcat-juli.jar java    130244 root  mem       REG                8,2    25287 8835 /usr/local/apache-tomcat-8.5.59/bin/commons-daemon.jar java    130244 root  mem       REG                8,2    36132 8837 /usr/local/apache-tomcat-8.5.59/bin/bootstrap.jar java    130244 root  mem       REG                8,2       54 395975 /usr/lib/locale/en_US.utf8/LC_NUMERIC java    130244 root  mem       REG                8,2     3316 521695 /usr/lib/locale/en_US.utf8/LC_TIME java    130244 root  mem       REG                8,2      286 521693 /usr/lib/locale/en_US.utf8/LC_MONETARY java    130244 root  mem       REG                8,2    26998 130155 /usr/lib64/gconv/gconv-modules.cache java    130244 root  mem       REG                8,2 67053209 9140 /usr/local/jdk/jre1.8.0_271/lib/rt.jar java    130244 root  mem       REG                8,2   127016 8988 /usr/local/jdk/jre1.8.0_271/lib/amd64/libzip.so java    130244 root  mem       REG                8,2    76880 133068 /usr/lib64/libnss_files-2.28.so java    130244 root  mem       REG                8,3  9253600 129922 /var/lib/sss/mc/passwd java    130244 root  mem       REG                8,2    46432 134002 /usr/lib64/libnss_sss.so.2 java    130244 root  mem       REG                8,2   231960 8986 /usr/local/jdk/jre1.8.0_271/lib/amd64/libjava.so java    130244 root  mem       REG                8,2    66112 8975 /usr/local/jdk/jre1.8.0_271/lib/amd64/libverify.so java    130244 root  mem       REG                8,2    68944 133091 /usr/lib64/librt-2.28.so java    130244 root  mem       REG                8,2  2191808 133023 /usr/lib64/libm-2.28.so java    130244 root  mem       REG                8,2 17108824 8969 /usr/local/jdk/jre1.8.0_271/lib/amd64/server/libjvm.so java    130244 root  mem       REG                8,2  3154704 129871 /usr/lib64/libc-2.28.so java    130244 root  mem       REG                8,2    28968 133013 /usr/lib64/libdl-2.28.so java    130244 root  mem       REG                8,2   108616 8973 /usr/local/jdk/jre1.8.0_271/lib/amd64/jli/libjli.so java    130244 root  mem       REG                8,2   321552 133079 /usr/lib64/libpthread-2.28.so java    130244 root  mem       REG                8,2   252280 129864 /usr/lib64/ld-2.28.so java    130244 root  mem       REG                8,3    32768 18 /tmp/hsperfdata_root/130244 java    130244 root  mem       REG                8,2       57 395973 /usr/lib/locale/en_US.utf8/LC_MESSAGES/SYS_LC_MESSAGES java    130244 root  mem       REG                8,2       34 390317 /usr/lib/locale/en_US.utf8/LC_PAPER java    130244 root  mem       REG                8,2       77 395974 /usr/lib/locale/en_US.utf8/LC_NAME java    130244 root  mem       REG                8,2      167 519390 /usr/lib/locale/en_US.utf8/LC_ADDRESS java    130244 root  mem       REG                8,2       59 521694 /usr/lib/locale/en_US.utf8/LC_TELEPHONE java    130244 root  mem       REG                8,2       23 521692 /usr/lib/locale/en_US.utf8/LC_MEASUREMENT java    130244 root  mem       REG                8,2      368 521691 /usr/lib/locale/en_US.utf8/LC_IDENTIFICATION java    130244 root    0r      CHR                1,3      0t0 1037 /dev/null java    130244 root    1w      REG                8,6   394654 1835011 /apps/apache-tomcat/logs/catalina.out java    130244 root    2w      REG                8,6   394654 1835011 /apps/apache-tomcat/logs/catalina.out java    130244 root    3r      REG                8,3  9253600 129922 /var/lib/sss/mc/passwd java    130244 root    4u     unix 0xffff985d1bd7b180      0t0 11980864 type=STREAM java    130244 root    5r      REG                8,2 67053209 9140 /usr/local/jdk/jre1.8.0_271/lib/rt.jar java    130244 root    6r      REG                8,2    36132 8837 /usr/local/apache-tomcat-8.5.59/bin/bootstrap.jar java    130244 root    7r      REG                8,2    25287 8835 /usr/local/apache-tomcat-8.5.59/bin/commons-daemon.jar java    130244 root    8r      REG                8,2    51205 8857 /usr/local/apache-tomcat-8.5.59/bin/tomcat-juli.jar java    130244 root    9w      REG                8,6    21883 1835065 /apps/apache-tomcat/logs/catalina.2021-05-20.log java    130244 root   10w      REG                8,6      761 1835066 /apps/apache-tomcat/logs/localhost.2021-05-20.log java    130244 root   11w      REG                8,6        0 1835067 /apps/apache-tomcat/logs/manager.2021-05-20.log java    130244 root   12w      REG                8,6        0 1835068 /apps/apache-tomcat/logs/host-manager.2021-05-20.log java    130244 root   13r      REG                8,2   158590 8883 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-zh-CN.jar java    130244 root   14r      REG                8,2    38561 8875 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ru.jar java    130244 root   15r      REG                8,2    26872 8885 /usr/local/apache-tomcat-8.5.59/lib/jaspic-api.jar java    130244 root   16r      REG                8,2   155094 8866 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-fr.jar java    130244 root   17r      REG                8,2   215400 8874 /usr/local/apache-tomcat-8.5.59/lib/tomcat-util-scan.jar java    130244 root   18r      REG                8,2   868336 8888 /usr/local/apache-tomcat-8.5.59/lib/tomcat-coyote.jar java    130244 root   19r      REG                8,2   228391 8879 /usr/local/apache-tomcat-8.5.59/lib/tomcat-websocket.jar java    130244 root   20r      REG                8,2   120073 8876 /usr/local/apache-tomcat-8.5.59/lib/catalina-ha.jar java    130244 root   21r      REG                8,2   106051 8869 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-es.jar java    130244 root   22r      REG                8,2    38241 8882 /usr/local/apache-tomcat-8.5.59/lib/websocket-api.jar java    130244 root   23r      REG                8,2  1705863 8860 /usr/local/apache-tomcat-8.5.59/lib/catalina.jar java    130244 root   24r      REG                8,2    54667 8878 /usr/local/apache-tomcat-8.5.59/lib/catalina-ant.jar java    130244 root   25r      REG                8,2    72656 8865 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-de.jar java    130244 root   26r      REG                8,2   284036 8872 /usr/local/apache-tomcat-8.5.59/lib/tomcat-dbcp.jar java    130244 root   27r      REG                8,2    10673 8887 /usr/local/apache-tomcat-8.5.59/lib/tomcat-api.jar java    130244 root   28r      REG                8,2   173282 8880 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ko.jar java    130244 root   29r      REG                8,2   294856 8861 /usr/local/apache-tomcat-8.5.59/lib/catalina-tribes.jar java    130244 root   30r      REG                8,2   174393 8870 /usr/local/apache-tomcat-8.5.59/lib/tomcat-i18n-ja.jar java    130244 root   31r      REG                8,2   599431 8884 /usr/local/apache-tomcat-8.5.59/lib/jasper.jar java    130244 root   32r      REG                8,2    89695 8877 /usr/local/apache-tomcat-8.5.59/lib/el-api.jar java    130244 root   33r      REG                8,2    78087 8886 /usr/local/apache-tomcat-8.5.59/lib/catalina-storeconfig.jar java    130244 root   34r      REG                8,2    34798 8873 /usr/local/apache-tomcat-8.5.59/lib/tomcat-jni.jar java    130244 root   35r      REG                8,2  2450404 8864 /usr/local/apache-tomcat-8.5.59/lib/ecj-4.6.3.jar java    130244 root   36r      REG                8,2    62004 8863 /usr/local/apache-tomcat-8.5.59/lib/jsp-api.jar java    130244 root   37r      REG                8,2   148761 8881 /usr/local/apache-tomcat-8.5.59/lib/tomcat-jdbc.jar java    130244 root   38r      REG                8,2   244451 8862 /usr/local/apache-tomcat-8.5.59/lib/servlet-api.jar java    130244 root   39r      REG                8,2   168382 8867 /usr/local/apache-tomcat-8.5.59/lib/jasper-el.jar java    130244 root   40r      REG                8,2   169952 8868 /usr/local/apache-tomcat-8.5.59/lib/tomcat-util.jar java    130244 root   41r      REG                8,2    12373 8871 /usr/local/apache-tomcat-8.5.59/lib/annotations-api.jar java    130244 root   42r      REG                8,2  1907341 9138 /usr/local/jdk/jre1.8.0_271/lib/jsse.jar java    130244 root   43r      REG                8,2  3860563 9129 /usr/local/jdk/jre1.8.0_271/lib/ext/cldrdata.jar java    130244 root   44u     unix 0xffff985d1bd7a400      0t0 11980871 type=STREAM java    130244 root   45r      REG                8,2  1179462 9128 /usr/local/jdk/jre1.8.0_271/lib/ext/localedata.jar java    130244 root   46r      CHR                1,8      0t0 1041 /dev/random java    130244 root   47r      CHR                1,9      0t0 1042 /dev/urandom java    130244 root   48r      CHR                1,8      0t0 1041 /dev/random java    130244 root   49r      CHR                1,8      0t0 1041 /dev/random java    130244 root   50r      CHR                1,9      0t0 1042 /dev/urandom java    130244 root   51r      CHR                1,9      0t0 1042 /dev/urandom java    130244 root   52r      REG                8,2   118047 9136 /usr/local/jdk/jre1.8.0_271/lib/jce.jar java    130244 root   53r      REG                8,2   283206 9127 /usr/local/jdk/jre1.8.0_271/lib/ext/sunpkcs11.jar java    130244 root   54r      REG                8,2    43191 9125 /usr/local/jdk/jre1.8.0_271/lib/ext/sunec.jar java    130244 root   55r      REG                8,2   285868 9126 /usr/local/jdk/jre1.8.0_271/lib/ext/sunjce_provider.jar java    130244 root   56r      REG                8,2  3559360 9139 /usr/local/jdk/jre1.8.0_271/lib/resources.jar java    130244 root   57r      REG                8,2  3135658 9133 /usr/local/jdk/jre1.8.0_271/lib/charsets.jar java    130244 root   58u     IPv6           11980876      0t0 TCP *:http (LISTEN) java    130244 root   59u     unix 0xffff985d1bd7e780      0t0 11980877 type=STREAM java    130244 root   60r     FIFO               0,13      0t0 11980879 pipe java    130244 root   61w     FIFO               0,13      0t0 11980879 pipe java    130244 root   62u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   63u     IPv6           11980880      0t0 TCP *:https (LISTEN) java    130244 root   64r     FIFO               0,13      0t0 11980884 pipe java    130244 root   65w     FIFO               0,13      0t0 11980884 pipe java    130244 root   66u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   67u     IPv6           11980885      0t0 TCP *:8009 (LISTEN) java    130244 root   68r     FIFO               0,13      0t0 11980886 pipe java    130244 root   69w     FIFO               0,13      0t0 11980886 pipe java    130244 root   70u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   71w      REG                8,6   342714 1835069 /apps/apache-tomcat/logs/localhost_access_log.2021-05-21.txt java    130244 root   72r     FIFO               0,13      0t0 11968845 pipe java    130244 root   73w     FIFO               0,13      0t0 11968845 pipe java    130244 root   74u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   75r     FIFO               0,13      0t0 11968846 pipe java    130244 root   76w     FIFO               0,13      0t0 11968846 pipe java    130244 root   77u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   78u     sock                0,9      0t0 12154374 protocol: TCPv6 java    130244 root   79r     FIFO               0,13      0t0 11968847 pipe java    130244 root   80w     FIFO               0,13      0t0 11968847 pipe java    130244 root   81u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   82r     FIFO               0,13      0t0 11968848 pipe java    130244 root   83w     FIFO               0,13      0t0 11968848 pipe java    130244 root   84u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   86r     FIFO               0,13      0t0 11968849 pipe java    130244 root   87w     FIFO               0,13      0t0 11968849 pipe java    130244 root   88u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   89r     FIFO               0,13      0t0 11968850 pipe java    130244 root   90w     FIFO               0,13      0t0 11968850 pipe java    130244 root   91u  a_inode               0,14        0 10970 [eventpoll] java    130244 root   93u     IPv6           11968853      0t0 TCP localhost.localdomain:mxi (LISTEN) java    130244 root   94u     IPv6           12298916      0t0 TCP localhost.localdomain:45734->localhost.localdomain:postgres (ESTABLISHED) java    130244 root   95u     sock                0,9      0t0 12017983 protocol: TCPv6 java    130244 root   96u     sock                0,9      0t0 11983086 protocol: TCPv6 java    130244 root   97u     sock                0,9      0t0 11983087 protocol: TCPv6 java    130244 root   98u     sock                0,9      0t0 11983088 protocol: TCPv6 java    130244 root   99u     sock                0,9      0t0 11983089 protocol: TCPv6 java    130244 root  100u     sock                0,9      0t0 11983090 protocol: TCPv6 java    130244 root  101u     sock                0,9      0t0 11983091 protocol: TCPv6 java    130244 root  102u     sock                0,9      0t0 11983092 protocol: TCPv6 java    130244 root  103u     sock                0,9      0t0 11969375 protocol: TCPv6 java    130244 root  104u     sock                0,9      0t0 11987339 protocol: TCPv6 java    130244 root  105u     sock                0,9      0t0 11987347 protocol: TCPv6 java    130244 root  106u     sock                0,9      0t0 11969384 protocol: TCPv6 java    130244 root  107u     sock                0,9      0t0 11987348 protocol: TCPv6 java    130244 root  108r      CHR                1,8      0t0 1041 /dev/random java    130244 root  109w      REG                8,6 19536380 1835053 /apps/apache-tomcat/logs/fms.log java    130244 root  110u     sock                0,9      0t0 11979291 protocol: TCPv6 java    130244 root  111u     sock                0,9      0t0 11979292 protocol: TCPv6 java    130244 root  112w      REG                8,6   835408 1835019 /apps/apache-tomcat/logs/obd.log java    130244 root  113u     sock                0,9      0t0 11987349 protocol: TCPv6 java    130244 root  114u     sock                0,9      0t0 11987350 protocol: TCPv6 java    130244 root  115u     sock                0,9      0t0 11987351 protocol: TCPv6 java    130244 root  116u     sock                0,9      0t0 11987352 protocol: TCPv6 java    130244 root  117u     sock                0,9      0t0 11987353 protocol: TCPv6 java    130244 root  118u     sock                0,9      0t0 11987354 protocol: TCPv6 java    130244 root  119u     sock                0,9      0t0 11987355 protocol: TCPv6 java    130244 root  120u     sock                0,9      0t0 11987356 protocol: TCPv6 java    130244 root  121u     sock                0,9      0t0 11987357 protocol: TCPv6 java    130244 root  122u     sock                0,9      0t0 11987358 protocol: TCPv6 java    130244 root  123u     sock                0,9      0t0 11987359 protocol: TCPv6 java    130244 root  124u     sock                0,9      0t0 11987360 protocol: TCPv6
...........................
Keep seeing the same line

-----Original Message-----
From: André Warnier (tomcat/perl) <a...@ice-sa.com>
Sent: Saturday, May 22, 2021 10:22 AM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Mmm. Nothing very special in that netstat output.
The sockets seen there look quite normal for tomcat, and there are not a lot.
What about the IPv4 sockets ? (remove the -6 in your netstat command)

Looks like lsof is counting things which are not IPv6 TCP sockets belonging to the tomcat JVM process. Where is the difference between the lsof count (19948) and the netstat count (25) ?
(genuine question, I'm puzzled too)

Can you give an example of the "lsof -p 130244" output lines ?
(not all 19948 please, but enough to see some variety)

On 21.05.2021 16:11, Yeggy Javadi wrote:
Hi,
Here its is:
# lsof -p 130244 | grep "protocol: TCPv6"| wc -l
19948

# netstat -p -a -6 --tcp | grep 130244
tcp6       0      0 [::]:pcsync-https       [::]:* LISTEN      130244/java tcp6       0      0 [::]:https              [::]:* LISTEN      130244/java tcp6       0      0 [::]:37537              [::]:* LISTEN      130244/java tcp6       0      0 localhost.localdoma:mxi [::]:* LISTEN      130244/java tcp6       0      0 [::]:8009               [::]:* LISTEN      130244/java tcp6       0      0 [::]:rmiregistry        [::]:* LISTEN      130244/java tcp6       0      0 [::]:http               [::]:* LISTEN      130244/java tcp6      86      0 Yeggy-F8-FMSVA:39680    172.22.22.192:https CLOSE_WAIT  130244/java tcp6       0      0 Yeggy-F8-FMSVA:54772    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42664 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54782    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54766    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42662 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54778    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:46966 localhost.localdo:11753 ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54788    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54770    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:http     10.197.255.10:64799 ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54790    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54776    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54786    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54780    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:45736 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54768    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54784    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:42660 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:54774    Yeggy-F8-FMSVA:vrace ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:45734 localhost.loca:postgres ESTABLISHED 130244/java tcp6       0      0 Yeggy-F8-FMSVA:http     10.197.255.10:64798 ESTABLISHED 130244/java tcp6       0      0 localhost.localdo:41016 localhost.localdo:vrace ESTABLISHED 130244/java
Thanks
-----Original Message-----
From: Noelette Stout <noelettest...@isu.edu>
Sent: Friday, May 21, 2021 8:28 AM
To: Tomcat Users List <users@tomcat.apache.org>
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

ss has all the same options as netstat

On Fri, May 21, 2021 at 3:51 AM André Warnier (tomcat/perl)
<a...@ice-sa.com>
wrote:

Soyrry to top-post, but it's getting cluttered down there..

The next thing that you may want to do :

      > netstat -p -a -6 --tcp

That is an alternative list of sockets, which also shows the "tcp state"
of the sockets.
To get only the ones of the tomcat JVM PID, filter with grep based of
the last column.
The type of thing you are looking for is the column which should show
"LISTEN", or "ESTABLISHED" or "CLOSE_WAIT" etc..

The options above :
-p : show PID and program
-a : show all sockets states
-6 : only inet v6
--tcp : only TCP sockets

"netstat" may not be on your system by default, and you may need to
install it.
An alternative is "ss", but I don't know the options.


On 21.05.2021 02:14, Yeggy Javadi wrote:
Hi,
Yes; that is what I get and as you can see among 8028 open files,
7474
are for TCPv6 sockets:
java    130244 root 7805u     sock                0,9      0t0 12294251
protocol: TCPv6

# ps -ef | grep tomcat
root      130244       1  1 11:01 ?        00:06:20
/usr/local/jre/bin/java
-Djava.util.logging.config.file=/usr/local/apache-tomcat/conf/logging.
properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-d64 -server -Xms1800m -Xmx8192m -XX:MaxMetaspaceSize=1800m
-Djdk.tls.ephemeralDHKeySize=2048
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources
-Dorg.apache.catalina.security.SecurityListener.UMASK=0027
-Dignore.endorsed.dirs= -classpath
/usr/local/apache-tomcat/bin/bootstrap.jar:/usr/local/apache-tomcat/b
i n/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat
-Dcatalina.home=/usr/local/apache-tomcat
-Djava.io.tmpdir=/usr/local/apache-tomcat/temp
org.apache.catalina.startup.Bootstrap start
root      132566  132492  0 20:10 pts/1    00:00:00 grep --color=auto
tomcat

#lsof -p 130244 | wc -l
8028

#lsof -p 130244 | grep "protocol: TCPv6"| wc -l
7474

Thanks

-----Original Message-----
From: André Warnier (tomcat/perl) <a...@ice-sa.com>
Sent: Thursday, May 20, 2021 4:19 PM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Hi.
According to the list below, you have 2 java (JVM) processes running
on
your system.
One (PID = 130244) is the JVM which runs tomcat.  This is visible
when
you look at the whole command-line.

The other (PID = 130516) runs ElasticSearch, which I believe is not
relevant here.

So you should run lsof with the "-p 130244" option, to show only the
files opened by the tomcat JVM.
To show the current Tomcat JVM PID, do e.g. : ps -ef | grep
"apache-tomcat"
(or anything else unique in that line)


On 20.05.2021 21:00, Yeggy Javadi wrote:
Hi Chris,
Please indicate how to show lsof or netstat to *just the JVM* process.

Below is the list of running processes on my server:
UID          PID    PPID  C STIME TTY          TIME CMD
root           1       0  0 May07 ?        00:00:14
/usr/lib/systemd/systemd --switched-root --system --deserialize 17
root           2       0  0 May07 ?        00:00:00 [kthreadd]
root           3       2  0 May07 ?        00:00:00 [rcu_gp]
root           4       2  0 May07 ?        00:00:00 [rcu_par_gp]
root           6       2  0 May07 ?        00:00:00
[kworker/0:0H-kblockd]
root           8       2  0 May07 ?        00:00:00 [mm_percpu_wq]
root           9       2  0 May07 ?        00:00:00 [ksoftirqd/0]
root          10       2  0 May07 ?        00:02:18 [rcu_sched]
root          11       2  0 May07 ?        00:00:00 [migration/0]
root          12       2  0 May07 ?        00:00:00 [watchdog/0]
root          13       2  0 May07 ?        00:00:00 [cpuhp/0]
root          14       2  0 May07 ?        00:00:00 [cpuhp/1]
root          15       2  0 May07 ?        00:00:00 [watchdog/1]
root          16       2  0 May07 ?        00:00:00 [migration/1]
root          17       2  0 May07 ?        00:00:00 [ksoftirqd/1]
root          19       2  0 May07 ?        00:00:00
[kworker/1:0H-kblockd]
root          20       2  0 May07 ?        00:00:00 [cpuhp/2]
root          21       2  0 May07 ?        00:00:00 [watchdog/2]
root          22       2  0 May07 ?        00:00:00 [migration/2]
root          23       2  0 May07 ?        00:00:00 [ksoftirqd/2]
root          25       2  0 May07 ?        00:00:00
[kworker/2:0H-kblockd]
root          26       2  0 May07 ?        00:00:00 [cpuhp/3]
root          27       2  0 May07 ?        00:00:00 [watchdog/3]
root          28       2  0 May07 ?        00:00:00 [migration/3]
root          29       2  0 May07 ?        00:00:00 [ksoftirqd/3]
root          31       2  0 May07 ?        00:00:00
[kworker/3:0H-kblockd]
root          32       2  0 May07 ?        00:00:00 [cpuhp/4]
root          33       2  0 May07 ?        00:00:00 [watchdog/4]
root          34       2  0 May07 ?        00:00:00 [migration/4]
root          35       2  0 May07 ?        00:00:00 [ksoftirqd/4]
root          37       2  0 May07 ?        00:00:00
[kworker/4:0H-kblockd]
root          38       2  0 May07 ?        00:00:00 [cpuhp/5]
root          39       2  0 May07 ?        00:00:00 [watchdog/5]
root          40       2  0 May07 ?        00:00:00 [migration/5]
root          41       2  0 May07 ?        00:00:00 [ksoftirqd/5]
root          43       2  0 May07 ?        00:00:00
[kworker/5:0H-kblockd]
root          44       2  0 May07 ?        00:00:00 [cpuhp/6]
root          45       2  0 May07 ?        00:00:00 [watchdog/6]
root          46       2  0 May07 ?        00:00:00 [migration/6]
root          47       2  0 May07 ?        00:00:00 [ksoftirqd/6]
root          49       2  0 May07 ?        00:00:00
[kworker/6:0H-kblockd]
root          50       2  0 May07 ?        00:00:00 [cpuhp/7]
root          51       2  0 May07 ?        00:00:00 [watchdog/7]
root          52       2  0 May07 ?        00:00:00 [migration/7]
root          53       2  0 May07 ?        00:00:00 [ksoftirqd/7]
root          55       2  0 May07 ?        00:00:00
[kworker/7:0H-kblockd]
root          57       2  0 May07 ?        00:00:00 [kdevtmpfs]
root          58       2  0 May07 ?        00:00:00 [netns]
root          59       2  0 May07 ?        00:00:00 [kauditd]
root          62       2  0 May07 ?        00:00:00 [khungtaskd]
root          63       2  0 May07 ?        00:00:00 [oom_reaper]
root          64       2  0 May07 ?        00:00:00 [writeback]
root          65       2  0 May07 ?        00:00:00 [kcompactd0]
root          66       2  0 May07 ?        00:00:00 [ksmd]
root          67       2  0 May07 ?        00:00:02 [khugepaged]
root          68       2  0 May07 ?        00:00:00 [crypto]
root          69       2  0 May07 ?        00:00:00 [kintegrityd]
root          70       2  0 May07 ?        00:00:00 [kblockd]
root          71       2  0 May07 ?        00:00:00 [tpm_dev_wq]
root          72       2  0 May07 ?        00:00:00 [md]
root          73       2  0 May07 ?        00:00:00 [edac-poller]
root          74       2  0 May07 ?        00:00:00 [watchdogd]
root          92       2  0 May07 ?        00:00:00 [kswapd0]
root         188       2  0 May07 ?        00:00:00 [kthrotld]
root         189       2  0 May07 ?        00:00:00 [irq/24-pciehp]
root         190       2  0 May07 ?        00:00:00 [irq/25-pciehp]
root         191       2  0 May07 ?        00:00:00 [irq/26-pciehp]
root         192       2  0 May07 ?        00:00:00 [irq/27-pciehp]
root         193       2  0 May07 ?        00:00:00 [irq/28-pciehp]
root         194       2  0 May07 ?        00:00:00 [irq/29-pciehp]
root         195       2  0 May07 ?        00:00:00 [irq/30-pciehp]
root         196       2  0 May07 ?        00:00:00 [irq/31-pciehp]
root         197       2  0 May07 ?        00:00:00 [irq/32-pciehp]
root         198       2  0 May07 ?        00:00:00 [irq/33-pciehp]
root         199       2  0 May07 ?        00:00:00 [irq/34-pciehp]
root         200       2  0 May07 ?        00:00:00 [irq/35-pciehp]
root         201       2  0 May07 ?        00:00:00 [irq/36-pciehp]
root         202       2  0 May07 ?        00:00:00 [irq/37-pciehp]
root         203       2  0 May07 ?        00:00:00 [irq/38-pciehp]
root         204       2  0 May07 ?        00:00:00 [irq/39-pciehp]
root         205       2  0 May07 ?        00:00:00 [irq/40-pciehp]
root         206       2  0 May07 ?        00:00:00 [irq/41-pciehp]
root         207       2  0 May07 ?        00:00:00 [irq/42-pciehp]
root         208       2  0 May07 ?        00:00:00 [irq/43-pciehp]
root         209       2  0 May07 ?        00:00:00 [irq/44-pciehp]
root         210       2  0 May07 ?        00:00:00 [irq/45-pciehp]
root         211       2  0 May07 ?        00:00:00 [irq/46-pciehp]
root         212       2  0 May07 ?        00:00:00 [irq/47-pciehp]
root         213       2  0 May07 ?        00:00:00 [irq/48-pciehp]
root         214       2  0 May07 ?        00:00:00 [irq/49-pciehp]
root         215       2  0 May07 ?        00:00:00 [irq/50-pciehp]
root         216       2  0 May07 ?        00:00:00 [irq/51-pciehp]
root         217       2  0 May07 ?        00:00:00 [irq/52-pciehp]
root         218       2  0 May07 ?        00:00:00 [irq/53-pciehp]
root         219       2  0 May07 ?        00:00:00 [irq/54-pciehp]
root         220       2  0 May07 ?        00:00:00 [irq/55-pciehp]
root         222       2  0 May07 ?        00:00:00 [acpi_thermal_pm]
root         223       2  0 May07 ?        00:00:00 [kmpath_rdacd]
root         224       2  0 May07 ?        00:00:00 [kaluad]
root         226       2  0 May07 ?        00:00:00 [ipv6_addrconf]
root         227       2  0 May07 ?        00:00:00 [kstrp]
root         508       2  0 May07 ?        00:00:00 [mpt_poll_0]
root         509       2  0 May07 ?        00:00:00 [ata_sff]
root         510       2  0 May07 ?        00:00:00 [mpt/0]
root         512       2  0 May07 ?        00:00:00 [scsi_eh_0]
root         516       2  0 May07 ?        00:00:00 [scsi_tmf_0]
root         517       2  0 May07 ?        00:00:00 [scsi_eh_1]
root         518       2  0 May07 ?        00:00:00 [scsi_tmf_1]
root         524       2  0 May07 ?        00:00:14 [irq/16-vmwgfx]
root         525       2  0 May07 ?        00:00:00 [ttm_swap]
root         531       2  0 May07 ?        00:00:00 [scsi_eh_2]
root         532       2  0 May07 ?        00:00:00 [scsi_tmf_2]
root         540       2  0 May07 ?        00:00:01
[kworker/7:1H-kblockd]
root         541       2  0 May07 ?        00:00:01
[kworker/5:1H-kblockd]
root         567       2  0 May07 ?        00:00:07 [jbd2/sda3-8]
root         568       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         611       2  0 May07 ?        00:00:49 [jbd2/sda2-8]
root         612       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         613       2  0 May07 ?        00:00:01
[kworker/6:1H-kblockd]
root         650       2  0 May07 ?        00:00:01
[kworker/4:1H-kblockd]
root         659       2  0 May07 ?        00:00:02
[kworker/3:1H-kblockd]
root         660       2  0 May07 ?        00:00:02
[kworker/2:1H-kblockd]
root         662       2  0 May07 ?        00:00:01
[kworker/0:1H-kblockd]
root         679       1  0 May07 ?        00:00:03
/usr/lib/systemd/systemd-journald
root         682       2  0 May07 ?        00:00:02
[kworker/1:1H-kblockd]
root         716       1  0 May07 ?        00:00:01
/usr/lib/systemd/systemd-udevd
root         723       2  0 May07 ?        00:00:18 [jbd2/sdb1-8]
root         724       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         733       2  0 May07 ?        00:00:14 [jbd2/sda6-8]
root         734       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         738       2  0 May07 ?        00:00:00 [jbd2/sdc1-8]
root         739       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         744       2  0 May07 ?        00:00:00 [jbd2/sda1-8]
root         745       2  0 May07 ?        00:00:00 [ext4-rsv-conver]
root         776       1  0 May07 ?        00:00:01 /sbin/auditd
root         790       2  0 May07 ?        00:00:00 [rpciod]
root         791       2  0 May07 ?        00:00:00 [kworker/u17:0]
root         792       2  0 May07 ?        00:00:00 [xprtiod]
dbus         883       1  0 May07 ?        00:00:03
/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile
--systemd-activation --syslog-only
root         885       1  0 May07 ?        00:02:42
/usr/sbin/NetworkManager --no-daemon
root         887       1  0 May07 ?        00:00:44
/usr/sbin/irqbalance --foreground
root         888       1  0 May07 ?        00:00:00
/usr/bin/VGAuthService -s
root         889       1  0 May07 ?        00:10:28 /usr/bin/vmtoolsd root         890       1  0 May07 ?        00:00:00 /usr/sbin/sssd -i
--logger=files
chrony       906       1  0 May07 ?        00:00:00 /usr/sbin/chronyd
rngd         944       1  0 May07 ?        00:00:49 /sbin/rngd -f
--fill-watermark=0
root         946     890  0 May07 ?        00:00:06
/usr/libexec/sssd/sssd_be --domain implicit_files --uid 0 --gid 0
--logger=files
root         954       1  0 May07 ?        00:00:00 /usr/sbin/iscsid -f
-d2
root         962     890  0 May07 ?        00:00:12
/usr/libexec/sssd/sssd_nss --uid 0 --gid 0 --logger=files
root         963       1  0 May07 ?        00:00:00 /usr/sbin/gssproxy
-D
root         970       1  0 May07 ?        00:00:02
/usr/lib/systemd/systemd-logind
root         971       2  0 May07 ?        00:00:00 [iscsi_eh]
root         998       1  0 May07 ?        00:00:33 /usr/sbin/rsyslogd
-n
root        1007       1  0 May07 ?        00:00:00 /usr/sbin/crond -n
root        6223       1  0 May07 ?        00:07:27
/usr/local/vtl/bin/sanidmgr
root        6271       2  0 May07 ?        00:00:03 [bksc_exec]
root        6272       2  0 May07 ?        00:00:03 [bksc_done]
root        6274       2  0 May07 ?        00:00:00 [scsi_eh_3]
root        6275       2  0 May07 ?        00:00:00 [scsi_tmf_3]
root        6460       2  0 May07 ?        00:00:00 [kdownstream]
root        6461       2  0 May07 ?        00:00:07 [msgfilter]
root        6463       2  0 May07 ?        00:00:12 [iocore]
root        6466       2  0 May07 ?        00:00:02 [ioctl_mgr]
root        6467       2  0 May07 ?        00:00:02 [ioctl_mgr]
root        6505       1  0 May07 ?        00:00:00 fsnupd -d 0
root        6523       2  0 May07 ?        00:01:50 [trudpd]
root        6539       2  0 May07 ?        00:00:00 [fsnalias_worker] root        6541       2  0 May07 ?        00:00:00 [fsnalias_check]
root        6551       2  0 May07 ?        00:00:00 [misc_thread]
root        6553       2  0 May07 ?        00:00:01 [mtcp2_listen]
root        6554       2  0 May07 ?        00:00:00 [listen_handle]
root        6557       2  0 May07 ?        00:00:00 [ipstord]
root        6579       2  0 May07 ?        00:00:00 [kfsvshostwq]
root        6580       2  0 May07 ?        00:00:00 [scsi_eh_4]
root        6582       2  0 May07 ?        00:00:00 [scsi_tmf_4]
root        6654       1  0 May07 ?        00:00:00
/usr/local/vtl/bin/ipstorcomm -d 0
root        6655    6654  0 May07 ?        00:05:18
/usr/local/vtl/bin/ipstorcomm -d 0
root        6656    6655  0 May07 ?        00:00:36
/usr/local/vtl/bin/ipstorcomm -d 0
root        6693       1  0 May07 ?        00:00:00 rdesirkey
root        6699       1  0 May07 ?        00:00:12 ikmd
root        6721       1  0 May07 ?        00:00:35
/usr/local/vtl/bin/iscliproxy
root        6747       1  0 May07 ?        00:00:40
/usr/local/vtl/bin/ipstorlog
root        6780       1  0 May07 ?        00:04:50
/usr/local/vtl/bin/snmpd
root        7722       1  0 May07 ?        00:00:00
/usr/local/vtl/bin/ipstorsm
root        7723    7722  0 May07 ?        01:08:12
/usr/local/vtl/bin/ipstorsm
root        7901       1  0 May07 ?        00:00:00
/usr/lib/systemd/systemd --user
root        7904    7901  0 May07 ?        00:00:00 (sd-pam)
root        8179       1  0 May07 tty1     00:00:00 /sbin/agetty -o -p
-- \u --noclear tty1 linux
root       14199       1  0 May08 ?        00:00:01 sshd: root [priv] root       14201   14199  0 May08 ?        00:00:01 sshd: root@pts/0
root       14202   14201  0 May08 pts/0    00:00:00 -bash
root       14261       1  0 May08 ?        00:00:00 /usr/sbin/sshd -D
-oCiphers=aes256-...@openssh.com,chacha20-poly1...@openssh.com
,aes256-ctr,aes256-cbc,aes128-...@openssh.com,aes128-ctr,aes128-cbc
-oMACs=hmac-sha2-256-...@openssh.com,hmac-sha1-...@openssh.com,
umac-128-...@openssh.com,hmac-sha2-512-...@openssh.com
,hmac-sha2-256,hmac-sha1,umac-...@openssh.com,hmac-sha2-512
-oGSSAPIKexAlgorithms=gss-curve25519-sha256-,gss-nistp256-sha256-,gss
-
group14-sha256-,gss-group16-sha512-,gss-gex-sha1-,gss-group14-sha1-
-oKexAlgorithms=curve25519-sha256,curve25519-sha...@libssh.org,ecdh-s
h
a2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-grou
p
-exchange-sha256,diffie-hellman-group14-sha256,diffie-hellman-group16
-
sha512,diffie-hellman-group18-sha512,diffie-hellman-group-exchange-sh
a
1,diffie-hellman-group14-sha1
-oHostKeyAlgorithms=ecdsa-sha2-nistp256,
ecdsa-sha2-nistp256-cert-...@openssh.com,ecdsa-sha2-nistp384,
ecdsa-sha2-nistp384-cert-...@openssh.com,ecdsa-sha2-nistp521,
ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519,
ssh-ed25519-cert-...@openssh.com,rsa-sha2-256,
rsa-sha2-256-cert-...@openssh.com,rsa-sha2-512,
rsa-sha2-512-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.co
m -oPubkeyAcceptedKeyTypes=ecdsa-sha2-nistp256,
ecdsa-sha2-nistp256-cert-...@openssh.com,ecdsa-sha2-nistp384,
ecdsa-sha2-nistp384-cert-...@openssh.com,ecdsa-sha2-nistp521,
ecdsa-sha2-nistp521-cert-...@openssh.com,ssh-ed25519,
ssh-ed25519-cert-...@openssh.com,rsa-sha2-256,
rsa-sha2-256-cert-...@openssh.com,rsa-sha2-512,
rsa-sha2-512-cert-...@openssh.com,ssh-rsa,ssh-rsa-cert-...@openssh.co
m
-oCASignatureAlgorithms=ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa
- sha2-nistp521,ssh-ed25519,rsa-sha2-256,rsa-sha2-512,ssh-rsa
root      122905       2  0 May19 ?        00:00:27 [kworker/7:0-events] root      126037       2  0 05:30 ?        00:00:00 [kworker/1:2-events]
root      128108       2  0 08:40 ?        00:00:00
[kworker/4:1-events_power_efficient]
root      128360       2  0 09:10 ?        00:00:00
[kworker/4:2-cgroup_destroy]
root      128430       2  0 09:30 ?        00:00:00
[kworker/6:0-mm_percpu_wq]
root      128738       2  0 11:00 ?        00:00:00
[kworker/3:3-mm_percpu_wq]
root      128761       2  0 11:00 ?        00:00:00
[kworker/2:1-mm_percpu_wq]
root      130244       1  1 11:01 ?        00:03:50
/usr/local/jre/bin/java
-Djava.util.logging.config.file=/usr/local/apache-tomcat/conf/logging.
properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-d64 -server -Xms1800m -Xmx8192m -XX:MaxMetaspaceSize=1800m
-Djdk.tls.ephemeralDHKeySize=2048
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources
-Dorg.apache.catalina.security.SecurityListener.UMASK=0027
-Dignore.endorsed.dirs= -classpath
/usr/local/apache-tomcat/bin/bootstrap.jar:/usr/local/apache-tomcat/b
i n/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat
-Dcatalina.home=/usr/local/apache-tomcat
-Djava.io.tmpdir=/usr/local/apache-tomcat/temp
org.apache.catalina.startup.Bootstrap start
elastic+  130516       1  1 11:01 ?        00:03:26 /bin/java -Xms8g
-Xmx8g -Djava.awt.headless=true -XX:+UseParNewGC
-XX:+UseConcMarkSweepGC
-XX:CMSInitiatingOccupancyFraction=75
-XX:+UseCMSInitiatingOccupancyOnly
-XX:+HeapDumpOnOutOfMemoryError -XX:+DisableExplicitGC
-Dfile.encoding=UTF-8 -Delasticsearch -Des.foreground=yes
-Des.path.home=/usr/share/elasticsearch -cp
:/usr/share/elasticsearch/lib/elasticsearch-1.7.6.jar:/usr/share/elas
t
icsearch/lib/*:/usr/share/elasticsearch/lib/sigar/*
-Des.pidfile=/var/run/elasticsearch/elasticsearch.pid
-Des.default.path.home=/usr/share/elasticsearch
-Des.default.path.logs=/var/log/elasticsearch
-Des.default.path.data=/var/lib/elasticsearch
-Des.default.config=/etc/elasticsearch/elasticsearch.yml
-Des.default.path.conf=/etc/elasticsearch
org.elasticsearch.bootstrap.Elasticsearch
postgres  130548       1  0 11:01 ?        00:00:00
/usr/pgsql-9.6/bin/postgres -D /DB/postgres/data
postgres  130561  130548  0 11:01 ?        00:00:00 postgres: logger
process
postgres  130563  130548  0 11:01 ?        00:00:00 postgres:
checkpointer process
postgres  130564  130548  0 11:01 ?        00:00:00 postgres: writer
process
postgres  130565  130548  0 11:01 ?        00:00:00 postgres: wal
writer process
postgres  130566  130548  0 11:01 ?        00:00:00 postgres:
autovacuum launcher process
postgres  130567  130548  0 11:01 ?        00:00:00 postgres: stats
collector process
root      130570       1  0 11:01 ?        00:00:01
/usr/local/freestor/bin/fmsd
postgres  130675  130548  0 11:01 ?        00:00:03 postgres: postgres
freestor 127.0.0.1(42660) idle
postgres  130676  130548  0 11:01 ?        00:00:04 postgres: postgres
freestor 127.0.0.1(42662) idle
postgres  130677  130548  0 11:01 ?        00:00:03 postgres: postgres
freestor 127.0.0.1(42664) idle
root      131206       2  0 13:00 ?        00:00:00 [kworker/7:2]
root      131269       2  0 13:20 ?        00:00:00 [kworker/6:2]
root      131347       2  0 13:49 ?        00:00:00
[kworker/5:1-mm_percpu_wq]
root      131364       2  0 13:56 ?        00:00:00
[kworker/u16:2-events_unbound]
root      131401       2  0 14:05 ?        00:00:00
[kworker/u16:1-events_unbound]
root      131438       2  0 14:20 ?        00:00:00 [kworker/2:2]
root      131465       2  0 14:30 ?        00:00:00 [kworker/0:2-events]
root      131490       2  0 14:40 ?        00:00:00 [kworker/3:0]
root      131491       2  0 14:40 ?        00:00:00 [kworker/0:1-events]
root      131515       2  0 14:49 ?        00:00:00
[kworker/1:0-events_freezable]
root      131520       2  0 14:50 ?        00:00:00 [kworker/5:0]
root      131525   14261  0 14:52 ?        00:00:00 sshd: root [priv] root      131529  131525  0 14:52 ?        00:00:00 sshd: root@pts/1
root      131530  131529  0 14:52 pts/1    00:00:00 -bash
root      131600  131530  0 14:57 pts/1    00:00:00 ps -ef

Thanks
-----Original Message-----
From: Christopher Schultz <ch...@christopherschultz.net>
Sent: Thursday, May 20, 2021 12:49 PM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Yeggy,

On 5/19/21 19:37, Yeggy Javadi wrote:
Hi Chris,
Thanks for your email. Below are replies to your questions:

1. Did you upgrade anything recently (like Java VM)?
[YJ] To support Linux 8, only Postgres was upgraded from version
9.3
to 9.6.

2. What is error you are seeing? A full stack trace would be helpful.
[YJ] The application error can occur in any place with the (Too
many
open files) error when the limit of open files for tomcat has reached
(262144 in my environment), for example, I can get a connectivity
error when pulling info from a server as below :

        [InventoryPullerTask - 10.1.6.25] ERROR
FSSDataCollectorService - Error : The XML configuration file
failed to be retrieved for server 10.1.6.25. Check server
connectivity.Error retrieving IPStorConfg for
server=10.1.6.25 error=java.io.FileNotFoundException:
/usr/local/apache-tomcat-8.5.59/webapps/ROOT/WEB-INF/lib/spring-orm-3.
2.10.RELEASE.jar (Too many open files) restatus=-1 output=

3. What is your <Connector> configuration?
[YJ] It is as below in server.xml:

           <Connector address="0.0.0.0" port="80" protocol="HTTP/1.1"
                      maxThreads="150"
                      minSpareThreads="25" maxSpareThreads="75"
                      enableLookups="false" acceptCount="100"
                      connectionTimeout="20000" disableUploadTimeout="true"
                      compression="on"
                      compressionMinSize="2048"
                      noCompressionUserAgents="gozilla, traviata"

     compressableMimeType="text/html,text/xml,application/json"
                      redirectPort="443" /> ...........
           <Connector address="0.0.0.0" port="443"
protocol="org.apache.coyote.http11.Http11NioProtocol" SSLEnabled="true"
                      maxThreads="150" scheme="https" secure="true"                       clientAuth="false" sslEnabledProtocols="TLSv1.2"

ciphers="TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA"
                      keystoreFile="conf/freestor"
keystorePass="freestor"/>

           <!-- Define an AJP 1.3 Connector on port 8009 -->
           <Connector address="0.0.0.0" port="8009" protocol="AJP/1.3"
redirectPort="443" secretRequired="false" />

You have lots of settings on the HTTP connector but not the HTTPS one.
Is that intentional? Which one are you using? Or both?

Are you using AJP? If not, disable the connetor entirely.
Definitely
never enable it on 0.0.0.0 unless you really know what you are doing.

4. Are you counting all the open files for a single process or all
of
the sub-processes which represent the threads of the main process?
Different kernel versions count things differently.
[YJ] I am just getting the process ID of tomcat and count open
files for that process

Ok.

5. Running lsof, netstat, etc. can you see if some large number of
those sockets are bound to any specific port (listen or connect)?
[YJ] Here is the netstat output:
Active Internet connections (w/o servers)
Proto Recv-Q Send-Q Local Address           Foreign Address
     State
tcp        0      0 Yeggy-F8-FMSVA:ssh      10.12.3.33:55236
ESTABLISHED
tcp        0     64 Yeggy-F8-FMSVA:ssh      10.197.255.10:60378
     ESTABLISHED
tcp        0      0 localhost.loca:postgres localhost.localdo:36846
ESTABLISHED

That's not helpful. I want to see what the JVM process is holding,
not
what the whole OS is handling.

My guess is that lsof is going to be a better bet for inspecting
the
process. But if you get "too many open files" being thrown inside the
JVM and you don't see a 1/4 million lines of "lsof" output on your
process, then something else is going on. But remember to limit your
lsof to *just the JVM* process.

-chris

-----Original Message-----
From: Christopher Schultz <ch...@christopherschultz.net>
Sent: Monday, May 17, 2021 5:18 PM
To: users@tomcat.apache.org
Subject: Re: apache-tomcat-8.5.59 too many open files on Linux 8

Yeggy,

On 5/17/21 15:17, Yeggy Javadi wrote:
Hi,
I am seeing too many TCP sockets open by tomcat on Oracle Linux 8: java    51798 root 6601u     sock                0,9      0t0 3959342
protocol: TCPv6

I was running the same application on Linux 7.6 with the same
apache-tomcat version without seeing this issue. I saw that
RedHat has removed apache-tomcat fom their Linux 8 distribution.
Please help with throubleshooting and indicating if there is any
changes in Linux
8 that can explain this

Configuration:
apache-tomcat-8.5.59
OEL Linux 8 kernel 4.18.0-193.28.1.el8_2.x86_64 Web-based
application using Postgres and elastic search databases


# ps -ef | grep tomcat
root       51798       1  1 11:16 ?        00:06:01
/usr/local/jre/bin/java
-Djava.util.logging.config.file=/usr/local/apache-tomcat/conf/logging.
properties
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager
-d64 -server -Xms1800m -Xmx8192m -XX:MaxMetaspaceSize=1800m
-Djdk.tls.ephemeralDHKeySize=2048
-Djava.protocol.handler.pkgs=org.apache.catalina.webresources
-Dorg.apache.catalina.security.SecurityListener.UMASK=0027
-Dignore.endorsed.dirs= -classpath
/usr/local/apache-tomcat/bin/bootstrap.jar:/usr/local/apache-tomcat/b
i n/tomcat-juli.jar -Dcatalina.base=/usr/local/apache-tomcat
-Dcatalina.home=/usr/local/apache-tomcat
-Djava.io.tmpdir=/usr/local/apache-tomcat/temp
org.apache.catalina.startup.Bootstrap start
root       54122   54037  0 19:43 pts/1    00:00:00 grep --color=auto
tomcat


# cat /proc/51798/limits
Limit                     Soft Limit           Hard Limit
     Units
Max cpu time              unlimited            unlimited
seconds
Max file size             unlimited            unlimited
bytes
Max data size             unlimited            unlimited
bytes
Max stack size            8388608              unlimited
bytes
Max core file size        unlimited            unlimited
bytes
Max resident set          unlimited            unlimited
bytes
Max processes             256518               256518
     processes
Max open files            262144               262144
     files
Max locked memory         65536                65536
bytes
Max address space         unlimited            unlimited
bytes
Max file locks            unlimited            unlimited
locks
Max pending signals       256518               256518
     signals
Max msgqueue size         819200               819200
     bytes
Max nice priority         0                    0
Max realtime priority     0                    0
Max realtime timeout      unlimited unlimited            us


Too may open files:
# lsof -p 51798 | wc -l
6679


Most of open files are TCP sockets:
java    51798 root 6601u     sock                0,9      0t0 3959342
protocol: TCPv6


# lsof -p 51798 | grep "protocol: TCPv6" | wc -l
6413

Some potentially dumb questions:

1. Did you upgrade anything recently (like Java VM)?

2. What is error you are seeing? A full stack trace would be helpful.

3. What is your <Connector> configuration?

4. Are you counting all the open files for a single process or all
of
the sub-processes which represent the threads of the main process?
Different kernel versions count things differently.

5. Running lsof, netstat, etc. can you see if some large number of
those sockets are bound to any specific port (listen or connect)?

-chris


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org



--
Noelette Stout

ITS Enterprise Applications - Application Administrator - Senior

Business Administration Building, Rm 109L
921 South 8th Ave 8037
Idaho State University
Pocatello ID 83209
E-mail: stounoel "at" isu "dot" edu
Desk: 208-282-2554

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org




---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org



---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org




---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org

Reply via email to