EMFILE error

[flashjpr]

Hi,

We run https://etnmine.pro, and starting yesterday we have seen a big number of the following errors.
The server specs are: 4 AES_NI cpuss, 8 gigs of memory, and 80 GB of SSD.

The pool module runs on 4 different threads.

2018-04-06 11:43:54 [pool] (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}

tail -25 pool_error.log
2018-04-06 11:44:17 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:18 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:44 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:45 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:46 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:47 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:44:55 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:16 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:17 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:18 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:19 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:20 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:49 (Thread 3) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:45:50 (Thread 3) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:46:28 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:46:47 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:46:48 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:46:49 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:47:15 (Thread 2) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:47:42 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:47:43 (Thread 1) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:48:10 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:48:11 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:48:12 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}
2018-04-06 11:48:13 (Thread 4) Error polling getblocktemplate {"code":"EMFILE","errno":"EMFILE","syscall":"connect"}

tail -25 pool_crash.log
Error: bind EADDRINUSE
at errnoException (net.js:905:11)
at net.js:1085:30
at Object.4:1 (cluster.js:594:5)
at handleResponse (cluster.js:171:41)
at respond (cluster.js:192:5)
at handleMessage (cluster.js:202:5)
at process.emit (events.js:117:20)
at handleMessage (child_process.js:322:10)
at child_process.js:396:7
at process.handleConversion.net.Native.got (child_process.js:91:7)

2018-04-01 05:40:51
Error: bind EADDRINUSE
at errnoException (net.js:905:11)
at net.js:1085:30
at Object.4:1 (cluster.js:594:5)
at handleResponse (cluster.js:171:41)
at respond (cluster.js:192:5)
at handleMessage (cluster.js:202:5)
at process.emit (events.js:117:20)
at handleMessage (child_process.js:322:10)
at child_process.js:396:7
at process.handleConversion.net.Native.got (child_process.js:91:7)

Any help is being appreciated. Thankl

[flashjpr]

Moreover:
lsof -i :3333 -> 23 connections
lsof -i :5555 -> 4002 connections
lsof -i :7777 -> 21 connections

[flashjpr]

They do, they all look clean. https://etnmine.pro/#pool_blocks
Last block mined was 5mins ago.
I suspect it's something to do with the max # of sockets open per port.

[flashjpr]

From a client side, the error is :

SOCKET ERROR - [etnmine.pro:5555] RECEIVE error: socket closed

[DeanCole]

One of the errors indicates that there is already something binded to the port Error: bind EADDRINUSE

Can you confirm that you don't have the pool already running on another terminal / screen?