I'm seeing this too in 8.5.2fp2

HCL Notes/Domino 8.5 Forum (includes Notes Traveler)

Subject:

The symptom is that the server 'stalls' for about two minutes while this dump occurs, then it resumes accepting requests as if it never happened.

We have a PMR open, but IBM can't seem to solve it. Any ideas?

[123C:0011-1284] 08/31/2011 12:47:45 PM Router: Transferred 1 messages to SERVERNAME.COM (host SERVERNAME.COM) via SMTP

[0BEC:0129-0E1C] LkMgr BEGIN Long Held Lock Dump ------------------
[0BEC:0129-0E1C] Lock(Mode=S * LockID(DB DB=F:\Lotus\Domino\DATA\mail.box)) Waiters countNonIntentLocks = 1 countIntentLocks = 0, queuLength = 2
[0BEC:0129-0E1C] Req(Status=Granted Mode=S Class=Manual Nest=0 Cnt=1
Tran=0 Func=N/A dbbitmap.c:1215 [0BEC:0119-0D84])

[0BEC:0129-0E1C] rm_lkmgr_cpp:2043
rm_lkmgr_cpp:1293
nsfsem1_c:533
nsfsem1_c:1139
dbbitmap_c:1202
[0BEC:0129-0E1C] Req(Status=Waiting Mode=SIX Class=Manual Nest=0 Cnt=0
Tran=0 Func=N/A ntupwrap.c:843 [1278:0045-16F4] Delay=0min)

[0BEC:0129-0E1C] rm_lkmgr_cpp:2043
rm_lkmgr_cpp:1293
nsfsem1_c:169
nsfsem1_c:1018
ntupwrap_c:835
[0BEC:0129-0E1C] Req(Status=Waiting Mode=S Class=Manual Nest=0 Cnt=0
Tran=0 Func=N/A nsfsem4.c:532 [1278:0022-1624] Delay=0min)

[0BEC:0129-0E1C] rm_lkmgr_cpp:2043
rm_lkmgr_cpp:1293
nsfsem1_c:533
nsfsem1_c:1139
[0BEC:0129-0E1C] LkMgr END Long Held Lock Dump ------------------
[123C:0028-1324] Deferring DbClose of F:\Lotus\Domino\DATA\mail.box until transaction end, err=0 [123C:0028-1324]
[0BEC:10ED-12DC] 08/31/2011 12:49:00 PM Failing over from SERVER/DOMAIN!!catalog.nsf, directing open to CLUSTERPARTNER/DOMAIN

Feedback response number WEBB8LBHJL created by ~Kelly Froponeberglen on 09/02/2011