Total socket count steadily increasing, tcp/udp sockets steady. Why?

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I have a server (Ubuntu 16.04.5) running sockets.io and a few other things



TCP connections are as follows:



root@01:~# netstat -an| awk '/tcp/ print $6'|sort|uniq -c
 44 CLOSE_WAIT
 518 ESTABLISHED
 71 FIN_WAIT1
 15 FIN_WAIT2
 5 LAST_ACK
 10 LISTEN
 26 SYN_RECV


However the total socket allocated count is much higher and steadily increasing...why?



root@01:~# ss -s
Total: 6128 (kernel 6144)
TCP: 6028 (estab 523, closed 5381, orphaned 7, synrecv 0, timewait 0/0), ports 0

Transport Total IP IPv6
* 6144 - - 
RAW 0 0 0 
UDP 4 3 1 
TCP 647 644 3 
INET 651 647 4 
FRAG 0 0 0


This server is running about 5 or 6 different python apps and sockets.io. When the server reaches this level of ~6144 sockets it stops accepting new ones. As you can see, there aren't really that many active connections so what is going on here? It's got me stumped.



Thanks






linux ubuntu tcp unix-sockets






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    up vote
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    down vote

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    I have a server (Ubuntu 16.04.5) running sockets.io and a few other things



    TCP connections are as follows:



    root@01:~# netstat -an| awk '/tcp/ print $6'|sort|uniq -c
     44 CLOSE_WAIT
     518 ESTABLISHED
     71 FIN_WAIT1
     15 FIN_WAIT2
     5 LAST_ACK
     10 LISTEN
     26 SYN_RECV


    However the total socket allocated count is much higher and steadily increasing...why?



    root@01:~# ss -s
    Total: 6128 (kernel 6144)
    TCP: 6028 (estab 523, closed 5381, orphaned 7, synrecv 0, timewait 0/0), ports 0

    Transport Total IP IPv6
    * 6144 - - 
    RAW 0 0 0 
    UDP 4 3 1 
    TCP 647 644 3 
    INET 651 647 4 
    FRAG 0 0 0


    This server is running about 5 or 6 different python apps and sockets.io. When the server reaches this level of ~6144 sockets it stops accepting new ones. As you can see, there aren't really that many active connections so what is going on here? It's got me stumped.



    Thanks






    linux ubuntu tcp unix-sockets






    share







    New contributor




    Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have a server (Ubuntu 16.04.5) running sockets.io and a few other things



      TCP connections are as follows:



      root@01:~# netstat -an| awk '/tcp/ print $6'|sort|uniq -c
       44 CLOSE_WAIT
       518 ESTABLISHED
       71 FIN_WAIT1
       15 FIN_WAIT2
       5 LAST_ACK
       10 LISTEN
       26 SYN_RECV


      However the total socket allocated count is much higher and steadily increasing...why?



      root@01:~# ss -s
      Total: 6128 (kernel 6144)
      TCP: 6028 (estab 523, closed 5381, orphaned 7, synrecv 0, timewait 0/0), ports 0

      Transport Total IP IPv6
      * 6144 - - 
      RAW 0 0 0 
      UDP 4 3 1 
      TCP 647 644 3 
      INET 651 647 4 
      FRAG 0 0 0


      This server is running about 5 or 6 different python apps and sockets.io. When the server reaches this level of ~6144 sockets it stops accepting new ones. As you can see, there aren't really that many active connections so what is going on here? It's got me stumped.



      Thanks






      linux ubuntu tcp unix-sockets






      share







      New contributor




      Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      I have a server (Ubuntu 16.04.5) running sockets.io and a few other things



      TCP connections are as follows:



      root@01:~# netstat -an| awk '/tcp/ print $6'|sort|uniq -c
       44 CLOSE_WAIT
       518 ESTABLISHED
       71 FIN_WAIT1
       15 FIN_WAIT2
       5 LAST_ACK
       10 LISTEN
       26 SYN_RECV


      However the total socket allocated count is much higher and steadily increasing...why?



      root@01:~# ss -s
      Total: 6128 (kernel 6144)
      TCP: 6028 (estab 523, closed 5381, orphaned 7, synrecv 0, timewait 0/0), ports 0

      Transport Total IP IPv6
      * 6144 - - 
      RAW 0 0 0 
      UDP 4 3 1 
      TCP 647 644 3 
      INET 651 647 4 
      FRAG 0 0 0


      This server is running about 5 or 6 different python apps and sockets.io. When the server reaches this level of ~6144 sockets it stops accepting new ones. As you can see, there aren't really that many active connections so what is going on here? It's got me stumped.



      Thanks






      linux ubuntu tcp unix-sockets




      linux ubuntu tcp unix-sockets





      share







      New contributor




      Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.










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      Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.








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      Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      Rob P is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






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      Check out our Code of Conduct.

























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