Is this sufficient? Again, this server has a light load and we don't think we
saw the problem, although I do note that the CPU usage seems pretty high for
such a light load.
Thread 26 (Thread 0x7f0600d32700 (LWP 11330)):
#0 0x00007f06420a09a3 in select ()
at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f06452e0649 in DS_Sleep ()
at /usr/lib64/dirsrv/libslapd.so.0
#2 0x00007f063a136bf7 in deadlock_threadmain ()
at /usr/lib64/dirsrv/plugins/libback-ldbm.so
#3 0x00007f064305dc5b in _pt_root (arg=0x557b3b2f5b00)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#4 0x00007f06429fdea5 in start_thread (arg=0x7f0600d32700)
at pthread_create.c:307
#5 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 25 (Thread 0x7f0600531700 (LWP 11331)):
#0 0x00007f06420a09a3 in select ()
at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f06452e0649 in DS_Sleep ()
at /usr/lib64/dirsrv/libslapd.so.0
#2 0x00007f063a13a7c7 in checkpoint_threadmain ()
at /usr/lib64/dirsrv/plugins/libback-ldbm.so
#3 0x00007f064305dc5b in _pt_root (arg=0x557b3b2f59e0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#4 0x00007f06429fdea5 in start_thread (arg=0x7f0600531700)
at pthread_create.c:307
#5 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 24 (Thread 0x7f05ffd30700 (LWP 11332)):
#0 0x00007f06420a09a3 in select ()
at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f06452e0649 in DS_Sleep ()
at /usr/lib64/dirsrv/libslapd.so.0
#2 0x00007f063a136e47 in trickle_threadmain ()
at /usr/lib64/dirsrv/plugins/libback-ldbm.so
#3 0x00007f064305dc5b in _pt_root (arg=0x557b3b2f5c20)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#4 0x00007f06429fdea5 in start_thread (arg=0x7f05ffd30700)
at pthread_create.c:307
#5 0x00007f06420a98dd in clone ()
---Type <return> to continue, or q <return> to quit---
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 23 (Thread 0x7f05ff52f700 (LWP 11333)):
#0 0x00007f06420a09a3 in select ()
at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f06452e0649 in DS_Sleep ()
at /usr/lib64/dirsrv/libslapd.so.0
#2 0x00007f063a1319f7 in perf_threadmain ()
at /usr/lib64/dirsrv/plugins/libback-ldbm.so
#3 0x00007f064305dc5b in _pt_root (arg=0x557b3b2f5440)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#4 0x00007f06429fdea5 in start_thread (arg=0x7f05ff52f700)
at pthread_create.c:307
#5 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 22 (Thread 0x7f05fed2e700 (LWP 11334)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55e900,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x00007f06452ccf58 in slapi_wait_condvar ()
at /usr/lib64/dirsrv/libslapd.so.0
#3 0x00007f063abe515e in cos_cache_wait_on_change ()
at /usr/lib64/dirsrv/plugins/libcos-plugin.so
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b680)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fed2e700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 21 (Thread 0x7f05fe52d700 (LWP 11335)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55ebc0,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x00007f06452ccf58 in slapi_wait_condvar ()
at /usr/lib64/dirsrv/libslapd.so.0
#3 0x00007f06382041fd in roles_cache_wait_on_change ()
at /usr/lib64/dirsrv/plugins/libroles-plugin.so
---Type <return> to continue, or q <return> to quit---
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b440)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fe52d700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 20 (Thread 0x7f05fdd2c700 (LWP 11336)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b404d3c40,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x00007f06452ccf58 in slapi_wait_condvar ()
at /usr/lib64/dirsrv/libslapd.so.0
#3 0x00007f06382041fd in roles_cache_wait_on_change ()
at /usr/lib64/dirsrv/plugins/libroles-plugin.so
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b320)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fdd2c700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 19 (Thread 0x7f05fd52b700 (LWP 11337)):
#0 0x00007f0642a01de2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007f0643057d07 in pt_TimedWait (cv=cv@entry=0x557b3b55ec08,
ml=0x557b4055c160, timeout=timeout@entry=30000)
at ../../../nspr/pr/src/pthreads/ptsynch.c:258
#2 0x00007f06430581ee in PR_WaitCondVar (cvar=0x557b3b55ec00, timeout=30000)
at ../../../nspr/pr/src/pthreads/ptsynch.c:387
#3 0x0000557b3a0be208 in housecleaning ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b0e0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fd52b700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 18 (Thread 0x7f05fcd2a700 (LWP 11338)):
---Type <return> to continue, or q <return> to quit---
#0 0x00007f0642a01de2 in pthread_cond_timedwait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007f0643057d07 in pt_TimedWait (cv=cv@entry=0x557b3b61fa08,
ml=0x557b3b6709a0, timeout=timeout@entry=10000)
at ../../../nspr/pr/src/pthreads/ptsynch.c:258
#2 0x00007f06430581ee in PR_WaitCondVar (cvar=0x557b3b61fa00, timeout=10000)
at ../../../nspr/pr/src/pthreads/ptsynch.c:387
#3 0x00007f064526ef23 in eq_loop ()
at /usr/lib64/dirsrv/libslapd.so.0
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b200)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fcd2a700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 17 (Thread 0x7f05fc529700 (LWP 11339)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040ad80)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fc529700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 16 (Thread 0x7f05fbd28700 (LWP 11340)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b7a0)
---Type <return> to continue, or q <return> to quit---
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fbd28700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 15 (Thread 0x7f05fb527700 (LWP 11341)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b8c0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fb527700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 14 (Thread 0x7f05fad26700 (LWP 11342)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040be60)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fad26700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 13 (Thread 0x7f05fa525700 (LWP 11343)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
---Type <return> to continue, or q <return> to quit---
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040bd40)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05fa525700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 12 (Thread 0x7f05f9d24700 (LWP 11344)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040bc20)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f9d24700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 11 (Thread 0x7f05f9523700 (LWP 11345)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040bb00)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f9523700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 10 (Thread 0x7f05f8d22700 (LWP 11346)):
---Type <return> to continue, or q <return> to quit---
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040b9e0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f8d22700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 9 (Thread 0x7f05f8521700 (LWP 11347)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a120)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f8521700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 8 (Thread 0x7f05f7d20700 (LWP 11348)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a240)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f7d20700)
at pthread_create.c:307
---Type <return> to continue, or q <return> to quit---
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 7 (Thread 0x7f05f751f700 (LWP 11349)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a360)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f751f700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 6 (Thread 0x7f05f6d1e700 (LWP 11350)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a5a0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f6d1e700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 5 (Thread 0x7f05f651d700 (LWP 11351)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
---Type <return> to continue, or q <return> to quit---
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a480)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f651d700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 4 (Thread 0x7f05f5d1c700 (LWP 11352)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a7e0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f5d1c700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 3 (Thread 0x7f05f551b700 (LWP 11353)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80,
timeout=4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a900)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f551b700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 2 (Thread 0x7f05f4d1a700 (LWP 11354)):
#0 0x00007f0642a01a35 in pthread_cond_wait@@GLIBC_2.3.2 ()
at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f0643058270 in PR_WaitCondVar (cvar=0x557b3b55fd80, timeout=---Type
<return> to continue, or q <return> to quit---
4294967295) at ../../../nspr/pr/src/pthreads/ptsynch.c:385
#2 0x0000557b3a0b32fe in [IDLE THREAD] connection_wait_for_new_work ()
#3 0x0000557b3a0b4941 in connection_threadmain ()
#4 0x00007f064305dc5b in _pt_root (arg=0x557b4040a6c0)
at ../../../nspr/pr/src/pthreads/ptthread.c:201
#5 0x00007f06429fdea5 in start_thread (arg=0x7f05f4d1a700)
at pthread_create.c:307
#6 0x00007f06420a98dd in clone ()
at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 1 (Thread 0x7f064594c940 (LWP 11328)):
#0 0x00007f064209ec3d in poll ()
at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f0643059ba7 in poll (__timeout=250, __nfds=123,
__fds=0x557b404ae400) at /usr/include/bits/poll2.h:46
#2 0x00007f0643059ba7 in _pr_poll_with_poll (pds=0x557b40bb8000, npds=123,
timeout=<optimized out>)
at ../../../nspr/pr/src/pthreads/ptio.c:4023
#3 0x0000557b3a0ba149 in slapd_daemon ()
#4 0x0000557b3a0abb15 in main ()
(gdb)
(gdb)
Deborah Crocker, PhD
Systems Engineer III
Office of Information Technology
The University of Alabama
Box 870346
Tuscaloosa, AL 36587
Office 205-348-3758 | Fax 205-348-9393
deborah.croc...@ua.edu
-----Original Message-----
From: William Brown <wbr...@suse.de>
Sent: Sunday, May 31, 2020 8:00 PM
To: 389-users@lists.fedoraproject.org
Subject: [EXTERNAL] [389-users] Re: Re: new server setup hanging
> On 1 Jun 2020, at 10:54, Crocker, Deborah <cr...@ua.edu> wrote:
>
> We had to roll it back. There is one host running with it but the load is so
> light we never saw a problem. We think it was a known bug, maybe this:
>
> https://pagure.io/389-ds-base/issue/50329
That issue is fixed in 1.3.9, you are running 1.3.10, so that seems unlikely?
>
> Do you want any info off the running host?
As before, I'd need to see a gdb -p "pid" and `thread apply all bt` thanks.
When you gdb -p <pid>, it will tell you a command of what debug info packages
you need to install and how. You should install those before you run the gdb
commands. It will cause the server to "pause" when you attach gdb btw.
>
> We'll now probably move into the 1.4.x trees. Any advice on which is the most
> stable?
We try to make sure they are all stable - if you are using Red Hat/CentOS or
SLE/Suse Leap, then whatever 389-ds version are in those platforms is the "best
maintained" for that platform, and we'll resolve issues in them etc. I think
that's 1.4.2.x or 1.4.3.x from the top of my head at the moment for RHEL 8.x
and SLE 15.x.
>
> -----Original Message-----
> From: William Brown <wbr...@suse.de>
> Sent: Sunday, May 31, 2020 6:25 PM
> To: 389-users@lists.fedoraproject.org
> Subject: [EXTERNAL] [389-users] Re: new server setup hanging
>
> Hey there,
>
>
> We need to see the pstacks from all threads to really determine the cause
> here. Can you send us a complete read out?
>
> gdb -p "pid"
>
> thread apply all bt
>
>
> It'd be great if you can install debug info too to help.
>
> Thanks,
>
>
>> On 31 May 2020, at 05:09, Crocker, Deborah <cr...@ua.edu> wrote:
>>
>> Some more information from a coworker:
>>
>> Yeah, this sounds like an LDAP server bug. I haven't figured out what to
>> look at to pin it down, but when it's slow to connect, I can see with strace
>> that the primary thread hasn't called accept() yet for the connection I'm
>> trying to open. Once it does, the whole thing goes very quickly, and I
>> usually see a burst of other connections accepted and handled at the same
>> time.
>>
>> Deborah Crocker, PhD
>> Systems Engineer III
>> Office of Information Technology
>> The University of Alabama
>> Box 870346
>> Tuscaloosa, AL 36587
>> Office 205-348-3758 | Fax 205-348-9393 deborah.croc...@ua.edu
>>
>>
>> -----Original Message-----
>> From: Crocker, Deborah <cr...@ua.edu>
>> Sent: Saturday, May 30, 2020 2:08 PM
>> To: General discussion list for the 389 Directory server project.
>> <389-users@lists.fedoraproject.org>
>> Subject: [EXTERNAL] [389-users] new server setup hanging
>>
>> We're trying to move into our new server setup. We have one that seems to be
>> fine under a load but when we bring the next we're having trouble with it
>> hanging. The second does have more clients (and different) so there could be
>> something about what a client is doing. Here is the server:
>> 389-Directory/1.3.10.1 B2020.133.1625 Installed from EPEL, running on
>> CentOS Linux release 7.8.2003
>>
>> And here is the pstack output listing the only thread that is not idle. Can
>> anyone tell me what is going on?
>>
>> Thread 44 (Thread 0x7f858e9b3700 (LWP 2515)):
>> #0 0x00007f860a90fe02 in slapi_atomic_load_32 () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #1 0x00007f860a8d4e8e in slapi_get_mapping_tree_node_by_dn () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #2 0x00007f860a8d5179 in slapi_be_select () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #3 0x00007f860a9296a0 in vattr_test_filter () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #4 0x00007f860a8b6ec4 in slapi_vattr_filter_test_ext_internal () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #5 0x00007f860a8b7ba6 in slapi_vattr_filter_test_ext () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #6 0x00007f8600a99e02 in acl__resource_match_aci () at
>> /usr/lib64/dirsrv/plugins/libacl-plugin.so
>> #7 0x00007f8600a9b280 in acl_access_allowed () at
>> /usr/lib64/dirsrv/plugins/libacl-plugin.so
>> #8 0x00007f8600aae9f7 in acl_access_allowed_main () at
>> /usr/lib64/dirsrv/plugins/libacl-plugin.so
>> #9 0x00007f860a8f0cbc in plugin_call_acl_plugin () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #10 0x00007f860a8b638d in test_filter_access () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #11 0x00007f860a8b6fb5 in slapi_vattr_filter_test_ext_internal () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #12 0x00007f860a8b6d31 in slapi_vattr_filter_test_ext_internal () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #13 0x00007f860a8b7ba6 in slapi_vattr_filter_test_ext () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #14 0x00007f85ff7c0df1 in ldbm_back_next_search_entry_ext () at
>> /usr/lib64/dirsrv/plugins/libback-ldbm.so
>> #15 0x00007f860a8deca6 in send_results_ext.constprop.5 () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #16 0x00007f860a8e0e09 in op_shared_search () at
>> /usr/lib64/dirsrv/libslapd.so.0
>> #17 0x0000557410dd3c0e in do_search ()
>> #18 0x0000557410dc198a in connection_threadmain ()
>> #19 0x00007f86086a0c5b in _pt_root () at /lib64/libnspr4.so
>> #20 0x00007f8608040ea5 in start_thread () at /lib64/libpthread.so.0
>> #21 0x00007f86076ec8dd in clone () at /lib64/libc.so.6
>>
>> Deborah Crocker, PhD
>> Systems Engineer III
>> Office of Information Technology
>> The University of Alabama
>> Box 870346
>> Tuscaloosa, AL 36587
>> Office 205-348-3758 | Fax 205-348-9393 deborah.croc...@ua.edu
>>
>>
>> -----Original Message-----
>> From: William Brown <wbr...@suse.de>
>> Sent: Wednesday, May 27, 2020 5:43 PM
>> To: 389-users@lists.fedoraproject.org
>> Subject: [EXTERNAL] [389-users] Re: Re: Re: Advice to bring new
>> servers into production
>>
>>
>>
>>> On 27 May 2020, at 23:20, Crocker, Deborah <cr...@ua.edu> wrote:
>>>
>>> Thanks - I think we have enough ideas in here to get this going. One last
>>> question:
>>> If replication is set up through the host name - how often does the
>>> directory server do a DNS look up, or does it do it once on startup (or
>>> creation of the rep agreement)?
>>
>> I "think" it's every time it initiates the new connection - but remember,
>> for replication, that *is* quite different to a client doing a search, so
>> I'd be pretty careful about this. IMO you should be standing up your
>> replacement servers in parallel, joining them all, moving the IP's then
>> decomission the old servers. Alternately, you'll need an outage window to
>> shutdown your old servers, export the ldif, and then import and bring up the
>> new ones.
>>
>> I think having "IP's are a limited resource" really does make this
>> whole process much much harder than it needs to be for you ... :(
>>
>>>
>>> -----Original Message-----
>>> From: William Brown <wbr...@suse.de>
>>> Sent: Tuesday, May 26, 2020 10:48 PM
>>> To: 389-users@lists.fedoraproject.org
>>> Subject: [EXTERNAL] [389-users] Re: Re: Advice to bring new servers
>>> into production
>>>
>>> There are a few options. The best would be a load balancer which has the
>>> ip's so that it's transparent to your LDAP servers where they are.
>>>
>>> But also as mentioned, the virtual IP's honestly is the best way. Linux can
>>> have multiple IP's on an interface so you can just have two IP's on one
>>> interface, andthat's the best way to do this.
>>>
>>> Alternately, don't rely on the IP, lower your DNS ttl's to a very short
>>> time, change the DNS A/AAAA records, and then do it that way.
>>>
>>>
>>>
>>>> On 27 May 2020, at 06:17, Crocker, Deborah <cr...@ua.edu> wrote:
>>>>
>>>> I’d like not to take up two ip addresses per host indefinitely. We have
>>>> re-IP’d our hosts before so I know we can to do this but it was during a
>>>> downtime when everything was restarted. Just trying to get away with not
>>>> restarting the masters.
>>>>
>>>> Deborah Crocker, PhD
>>>> Systems Engineer III
>>>> Office of Information Technology
>>>> The University of Alabama
>>>> Box 870346
>>>> Tuscaloosa, AL 36587
>>>> Office 205-348-3758 | Fax 205-348-9393 deborah.croc...@ua.edu
>>>>
>>>> From: Leo Pleiman <lplei...@salsalabs.com>
>>>> Sent: Tuesday, May 26, 2020 3:08 PM
>>>> To: General discussion list for the 389 Directory server project.
>>>> <389-users@lists.fedoraproject.org>
>>>> Subject: [EXTERNAL] [389-users] Re: Advice to bring new servers
>>>> into production
>>>>
>>>> My experience has been that the replicas and consumers have a unique id,
>>>> more than just an IP address which creates the trust relationship with the
>>>> master. If your goal is to simply maintain an IP so your clients don't
>>>> have to be repointed, I would build each new LDAP host and replication
>>>> agreement, and then as you decommission the old hosts use their IP address
>>>> as a virtual IP address on the replacement host. It would take a quick
>>>> restart od the LDAP service to start a listener on the virtual Ip address.
>>>>
>>>>
>>>> Leo Pleiman
>>>> Senior System Engineer
>>>> Direct 202-787-3622
>>>> Cell 410-688-3873
>>>>
>>>>
>>>>
>>>> On Tue, May 26, 2020 at 3:57 PM Crocker, Deborah <cr...@ua.edu> wrote:
>>>> We have a setup with 2 multi-masters and 3 consumers. We are now building
>>>> new host and want to put them in place ultimately at the same IP address
>>>> as the original ones. I need some advice on how to do this quickly and
>>>> cleanly.
>>>>
>>>> To add a new consumer the idea now is to set it up and set up replications
>>>> agreements from each master using consumer DNS name (don't start
>>>> continuous replication yet). After initializing new consumer from one
>>>> master - turn off old consumer, remove old consumer agreement from each
>>>> master, and re-IP new consumer. Do we need to restart masters to re-read
>>>> DNS or will it pick that up when it starts the next replication? Is this
>>>> the best way to do this?
>>>>
>>>> Thanks
>>>>
>>>> Deborah Crocker, PhD
>>>> Systems Engineer III
>>>> Office of Information Technology
>>>> The University of Alabama
>>>> Box 870346
>>>> Tuscaloosa, AL 36587
>>>> Office 205-348-3758 | Fax 205-348-9393 deborah.croc...@ua.edu
>>>>
>>>> _______________________________________________
>>>> 389-users mailing list -- 389-users@lists.fedoraproject.org To
>>>> unsubscribe send an email to
>>>> 389-users-le...@lists.fedoraproject.org
>>>> Fedora Code of Conduct:
>>>> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
>>>> List Guidelines:
>>>> https://fedoraproject.org/wiki/Mailing_list_guidelines
>>>> List Archives:
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>>>> a p r oject.org _______________________________________________
>>>> 389-users mailing list -- 389-users@lists.fedoraproject.org To
>>>> unsubscribe send an email to
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>>>> Fedora Code of Conduct:
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>>>> a
>>>> p
>>>> r
>>>> oject.org
>>>
>>> —
>>> Sincerely,
>>>
>>> William Brown
>>>
>>> Senior Software Engineer, 389 Directory Server SUSE Labs
>>> _______________________________________________
>>> 389-users mailing list -- 389-users@lists.fedoraproject.org To
>>> unsubscribe send an email to 389-users-le...@lists.fedoraproject.org
>>> Fedora Code of Conduct:
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>>> p r oject.org _______________________________________________
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>>> unsubscribe send an email to 389-users-le...@lists.fedoraproject.org
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>>> p
>>> r
>>> oject.org
>>
>> —
>> Sincerely,
>>
>> William Brown
>>
>> Senior Software Engineer, 389 Directory Server SUSE Labs
>> _______________________________________________
>> 389-users mailing list -- 389-users@lists.fedoraproject.org To
>> unsubscribe send an email to 389-users-le...@lists.fedoraproject.org
>> Fedora Code of Conduct:
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>> List Guidelines:
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>> r oject.org _______________________________________________
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>> unsubscribe send an email to 389-users-le...@lists.fedoraproject.org
>> Fedora Code of Conduct:
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>> Fedora Code of Conduct:
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>> r
>> oject.org
>
> —
> Sincerely,
>
> William Brown
>
> Senior Software Engineer, 389 Directory Server SUSE Labs
> _______________________________________________
> 389-users mailing list -- 389-users@lists.fedoraproject.org To
> unsubscribe send an email to 389-users-le...@lists.fedoraproject.org
> Fedora Code of Conduct:
> https://docs.fedoraproject.org/en-US/project/code-of-conduct/
> List Guidelines:
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> List Archives:
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> oject.org _______________________________________________
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> Fedora Code of Conduct:
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> oject.org
—
Sincerely,
William Brown
Senior Software Engineer, 389 Directory Server SUSE Labs
_______________________________________________
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an email to 389-users-le...@lists.fedoraproject.org
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