THREADPOOLSIZE 8
are in use, e.g.
F S UID PID SPID PPID C PRI NI ADDR SZ WCHAN TTY TIME CMD
...
1 - 0 8222 - 1 2 - - - 231521 - ? 06:23:22 moab
1 S 0 - 8222 - 0 80 0 - - poll_s - 01:14:49 -
1 S 0 - 8223 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8224 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8225 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8226 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8227 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8228 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8229 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8230 - 0 80 0 - - futex_ - 00:00:07 -
1 S 0 - 8231 - 0 80 0 - - futex_ - 00:00:37 -
1 S 0 - 8232 - 0 80 0 - - poll_s - 01:37:43 -
1 S 0 - 8233 - 1 80 0 - - poll_s - 03:29:11 -
...
[root@vbox-head-centos6 ~]# gdb ´which moab´ ´pgrep moab´
(gdb) info thread
12 Thread 0x2aaaad5e4700 (LWP 8223) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
11 Thread 0x2aaaad7e5700 (LWP 8224) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
10 Thread 0x2aaaad9e6700 (LWP 8225) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
9 Thread 0x2aaaadbe7700 (LWP 8226) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
8 Thread 0x2aaaadde8700 (LWP 8227) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
7 Thread 0x2aaaadfe9700 (LWP 8228) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
6 Thread 0x2aaaae1ea700 (LWP 8229) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
5 Thread 0x2aaaae3eb700 (LWP 8230) 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
4 Thread 0x2aaaae5ec700 (LWP 8231) 0x00002aaaaacd9a5e in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
3 Thread 0x2aaaae7ed700 (LWP 8232) 0x00002aaaabbc7623 in select ()
from /lib64/libc.so.6
2 Thread 0x2aaaae9ee700 (LWP 8233) 0x00002aaaabbc7623 in select ()
from /lib64/libc.so.6
* 1 Thread 0x2aaaac0921a0 (LWP 8222) 0x00002aaaabbc7623 in select ()
from /lib64/libc.so.6
(gdb)
When I do this, I can see there are 8 request handlers, a LazyWriteWatchDog, a communication thread, a cache thread, and the main scheduling thread.
(gdb) thread apply all bt
Thread 12 (Thread 0x2aaaad5e4700 (LWP 8223)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x37026f0) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 11 (Thread 0x2aaaad7e5700 (LWP 8224)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702728) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 10 (Thread 0x2aaaad9e6700 (LWP 8225)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702760) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 9 (Thread 0x2aaaadbe7700 (LWP 8226)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702798) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 8 (Thread 0x2aaaadde8700 (LWP 8227)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x37027d0) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 7 (Thread 0x2aaaadfe9700 (LWP 8228)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702808) at MTP.c:216
---Type <return> to continue, or q <return> to quit---
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 6 (Thread 0x2aaaae1ea700 (LWP 8229)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702840) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 5 (Thread 0x2aaaae3eb700 (LWP 8230)):
#0 0x00002aaaaacd968c in pthread_cond_wait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x000000000063fc4b in MTPGetRequest (ThreadPool=0x37026f0) at MTP.c:139
#2 0x000000000063fcf8 in MTPHandleRequestsLoop (Data=0x3702878) at MTP.c:216
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x2aaaae5ec700 (LWP 8231)):
#0 0x00002aaaaacd9a5e in pthread_cond_timedwait@@GLIBC_2.3.2 ()
from /lib64/libpthread.so.0
#1 0x00000000004eea5e in MLogQueue::FlushQueueToDisk (this=0x28f60b0)
---Type <return> to continue, or q <return> to quit---
at MLogQueue.c:196
#2 0x00000000004eea9f in LazyWriteWatchdog (LogQueue=0x28f60b0)
at MLogQueue.c:40
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x2aaaae7ed700 (LWP 8232)):
#0 0x00002aaaabbc7623 in select () from /lib64/libc.so.6
#1 0x0000000000638daf in MUSleep (SleepDuration=Unhandled dwarf expression opcode 0xf3
) at MTime.c:2101
#2 0x000000000081e3b4 in MSysCommThread () at MSysCommThread.c:790
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x2aaaae9ee700 (LWP 8233)):
#0 0x00002aaaabbc7623 in select () from /lib64/libc.so.6
#1 0x0000000000638daf in MUSleep (SleepDuration=Unhandled dwarf expression opcode 0xf3
) at MTime.c:2101
#2 0x0000000000631031 in MOCacheThread () at MSysObject.c:483
#3 0x00002aaaaacd5aa1 in start_thread () from /lib64/libpthread.so.0
#4 0x00002aaaabbcebcd in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2aaaac0921a0 (LWP 8222)):
#0 0x00002aaaabbc7623 in select () from /lib64/libc.so.6
#1 0x0000000000638daf in MUSleep (SleepDuration=Unhandled dwarf expression opcode 0xf3
) at MTime.c:2101
---Type <return> to continue, or q <return> to quit---
#2 0x000000000066f387 in MUIAcceptRequests (SS=Unhandled dwarf expression opcode 0xf3
) at MUIAcceptRequest.c:501
#3 0x000000000062f06d in MSysMainLoop () at MSysMainLoop.c:1448
#4 0x0000000000410484 in main (ArgC=1, ArgV=0x7fffffffe658,
EnvP=0x7fffffffe668) at MServer.c:289
(gdb)