Performance / stability issues with BDB 3.3.62 while checkpointing

Hi,
first of all: we use BDB 3.2 for more than a year within our application and we never had any performance or stability issues. Now we are about to release a new version of our software with BDB 3.3 and we found some problems during our release tests.
This is the situation: we have implemented some cleanup routines that make very heavy use of the BDB environment. The common usage pattern is to scan the database (about 300GB with >> 100 million items) and than delete a lot of items from the database. The first versions of our cleanup routine worked without any problem but during performance tuning of our code we suddenly and reproducible encountered segmentation faults in the com.sleepycat.je.recovery.Checkpointer thread. We analysed more that 10 VM crashes and ALL crashes were related to Checkpointer thread. (Linux 64 bit, JDK 1.5.0_013 / 1.6.0_06)
After we removed our performance tuning (only application logic – nothing BDB-related) the VM crashes disappeared – so it looks like some kind of problem which only occurs under high load conditions. Next thing we tried was enabling our performance tuning and setting Ceckpointer configuration to default (write a checkpoint after 20MB) before that we used time based checkpointing with 60 sec interval.
With Default Checkpointer configuration there were no VM-crashes but performance was very slow!
Finally my question: What Checkpointer configuration would you recommend for an environment that is under very high load with regard to delete operations? Would you recommend using “high priority Checkpointing”? Would you recommend time- or data-based checkpointing?
It looks like Checkpointing every 60 seconds was not a good idea but 20MB seems to be too slow.
This leads to another question: What does a longer Checkpointing interval mean for recovery time? Does recovery take substantially longer if checkpointing is done less fequently?
Any help would be very much apprechiated.
Here are two HS_ERR_PID
# An unexpected error has been detected by Java Runtime Environment:
# SIGSEGV (0xb) at pc=0x00002af3cbe47a27, pid=29834, tid=1170757984
# Java VM: Java HotSpot(TM) 64-Bit Server VM (10.0-b23 mixed mode linux-amd64)
# Problematic frame:
# V [libjvm.so+0x5d8a27]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
--------------- T H R E A D ---------------
Current thread (0x00002aad7cd06800): JavaThread "Checkpointer" daemon [_thread_in_vm, id=30798, stack(0x0000000045b85000,0x0000000045c86000)]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000010
Registers:
RAX=0x00002aad7c942d80, RBX=0x00002aad7cd06800, RCX=0x00002aad7c943168, RDX=0x00002aad7c942d90
RSP=0x0000000045c84720, RBP=0x0000000045c84730, RSI=0x00002aabf193e230, RDI=0x0000000000000000
R8 =0x00002aad7dcf4380, R9 =0x000000000000784e, R10=0x00002af3cbb8e840, R11=0x0000000045c84810
R12=0x0000000000000000, R13=0x0000000045c84780, R14=0x0000000045c84838, R15=0x00002aad7cd06800
RIP=0x00002af3cbe47a27, EFL=0x0000000000010206, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
TRAPNO=0x000000000000000e
Top of Stack: (sp=0x0000000045c84720)
0x0000000045c84720: 00002aad7cd06800 0000000000000000
0x0000000045c84730: 0000000045c84740 00002af3cbce3a9d
0x0000000045c84740: 0000000045c847b0 00002af3cbb8e896
0x0000000045c84750: 00002aad7dcf4380 00002aad7c942d80
0x0000000045c84760: 00002aad7c942d90 00002aad7c943168
0x0000000045c84770: 00002aad7cd06800 00002aad7cd06800
0x0000000045c84780: 00002aad7cd06800 0000000000000000
0x0000000045c84790: 000000002f7e8112 00002aabf193e1f9
0x0000000045c847a0: 0000000000000000 00002aad5fede569
0x0000000045c847b0: 0000000045c84810 00002aaaab25a0c7
0x0000000045c847c0: 00002aaaab253070 00002aaaab25a08b
0x0000000045c847d0: 0000000045c847d0 00002aad5fede569
0x0000000045c847e0: 0000000045c84838 00002aad5fedef50
0x0000000045c847f0: 00002aad601fedc0 00002aad5fede5b0
0x0000000045c84800: 0000000000000000 0000000045c84840
0x0000000045c84810: 0000000000010001 00002aaaab854744
0x0000000045c84820: 0000000000000000 0000000000000000
0x0000000045c84830: 0000000000000000 0000000000000000
0x0000000045c84840: 00002aad7cd06800 00002aaacd77a138
0x0000000045c84850: 00002aaaf27a8c90 00002aac00000001
0x0000000045c84860: 00002aaa00000000 00002af3cbd73369
0x0000000045c84870: 0000000145c848b0 000000002f7e8112
0x0000000045c84880: 00002aad7cd06800 00002aaaf39de2f0
0x0000000045c84890: 00002aabbee886d0 00002aab35552900
0x0000000045c848a0: 00002aaacd77a3c8 00002aaaf573a448
0x0000000045c848b0: 00002aaaee5aaab8 00002aaacd77a160
0x0000000045c848c0: 00002aab355887f0 00002aaaee643748
0x0000000045c848d0: 00002aaacd77a160 00002aac6a858558
0x0000000045c848e0: 0000000000000000 00002aaacd77a380
0x0000000045c848f0: 00002aad0000005b 0000000000000001
0x0000000045c84900: 0000000000000001 00002aaacd779328
0x0000000045c84910: 00002aabad0b62d8 00002aaaab7589c0
Instructions: (pc=0x00002af3cbe47a27)
0x00002af3cbe47a17: 89 f0 eb ea 90 66 66 66 90 55 48 89 e5 41 54 53
0x00002af3cbe47a27: 0f b7 57 10 48 89 fb 44 8d 62 01 49 63 fc e8 06
Stack: [0x0000000045b85000,0x0000000045c86000], sp=0x0000000045c84720, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x5d8a27]
V [libjvm.so+0x474a9d]
V [libjvm.so+0x31f896]
v ~BufferBlob::Interpreter
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
v ~BufferBlob::Interpreter
J com.sleepycat.je.recovery.Checkpointer.flushIN(Lcom/sleepycat/je/dbi/EnvironmentImpl;Lcom/sleepycat/je/dbi/DatabaseImpl;
Lcom/sleepycat/je/log/LogManager;Lcom/sleepycat/je/recovery/Checkpointer$CheckpointReference;Lcom/sleepycat/je/recovery/DirtyINMap;IIZJZLcom/sleepycat/je/recovery/Checkpointer$FlushStats;
Lcom/sleepycat/je/cleaner/LocalUtilizationTracker;Z)V
J com.sleepycat.je.recovery.Checkpointer.flushDirtyNodes(Lcom/sleepycat/je/dbi/EnvironmentImpl;Lcom/sleepycat/je/recovery/DirtyINMap;
Ljava/util/Map;ZJZLcom/sleepycat/je/recovery/Checkpointer$FlushStats;)V
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::StubRoutines (1)
# An unexpected error has been detected by Java Runtime Environment:
# SIGSEGV (0xb) at pc=0x00002b00816f2a27, pid=32743, tid=1162336608
# Java VM: Java HotSpot(TM) 64-Bit Server VM (10.0-b23 mixed mode linux-amd64)
# Problematic frame:
# V [libjvm.so+0x5d8a27]
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
--------------- T H R E A D ---------------
Current thread (0x00002aad7fa1c000): JavaThread "Checkpointer" daemon [_thread_in_vm, id=32646, stack(0x000000004537d000,0x000000004547e000)]
siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x0000000000000010
Registers:
RAX=0x00002aad8082f9b0, RBX=0x00002aad7fa1c000, RCX=0x00002aad8082fd98, RDX=0x00002aad8082f9c0
RSP=0x000000004547c5e0, RBP=0x000000004547c5f0, RSI=0x00002aab73edc788, RDI=0x0000000000000000
R8 =0x00002aad7fa08d30, R9 =0x0000000000007f86, R10=0x00002b0081439840, R11=0x000000004547c6d0
R12=0x00002aaca950fcc8, R13=0x000000004547c640, R14=0x000000004547c6f8, R15=0x00002aad7fa1c000
RIP=0x00002b00816f2a27, EFL=0x0000000000010202, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
TRAPNO=0x000000000000000e
Top of Stack: (sp=0x000000004547c5e0)
0x000000004547c5e0: 00002aad7fa1c000 00002aaca950fcc8
0x000000004547c5f0: 000000004547c600 00002b008158ea9d
0x000000004547c600: 000000004547c670 00002b0081439896
0x000000004547c610: 00002aad7fa08d30 00002aad8082f9b0
0x000000004547c620: 00002aad8082f9c0 00002aad8082fd98
0x000000004547c630: 00002aad7fa1c000 00002aad7fa1c000
0x000000004547c640: 00002aad7fa1c000 00002aaca950fcc8
0x000000004547c650: 000000004547c540 00002aab73edc751
0x000000004547c660: 00002aaca950fcc8 00002aad5fef5d49
0x000000004547c670: 000000004547c6d0 00002aaaab25a0c7
0x000000004547c680: 00002aaaab253070 00002aaaab25a08b
0x000000004547c690: 000000004547c690 00002aad5fef5d49
0x000000004547c6a0: 000000004547c6f8 00002aad5fef6730
0x000000004547c6b0: 00002aad600eed48 00002aad5fef5d90
0x000000004547c6c0: 0000000000000000 000000004547c700
0x000000004547c6d0: 0000000000010001 00002aaaaba46ac0
0x000000004547c6e0: 0000000000000000 0000000000000000
0x000000004547c6f0: 0000000000000000 0000000000000000
0x000000004547c700: 0001000100010005 00002aaa00000001
0x000000004547c710: 0010244e00432762 00002aab2ef43ff0
0x000000004547c720: 00002aaaf0635a00 00002aac5694a460
0x000000004547c730: 0000000100000000 00002aad7fa1c000
0x000000004547c740: 00002aabe0162870 00002aaaf0761bf0
0x000000004547c750: 00002aaaf07f20d0 00002aaadd628058
0x000000004547c760: 00002aaadd628ee0 00002aaa00000001
0x000000004547c770: 00002aaaeec996b8 0000000000000000
0x000000004547c780: 00002aab2ecc9890 00002aad00000000
0x000000004547c790: 00002aaadd627af0 00002aac5bc259c8
0x000000004547c7a0: 0000000000000000 00002aaadd628010
0x000000004547c7b0: 0000000000000001 00002aaaee4f8870
0x000000004547c7c0: 00000030f1218c01 00002aaae5222d38
0x000000004547c7d0: 0000000000010001 00002aaaab6cc928
Instructions: (pc=0x00002b00816f2a27)
0x00002b00816f2a17: 89 f0 eb ea 90 66 66 66 90 55 48 89 e5 41 54 53
0x00002b00816f2a27: 0f b7 57 10 48 89 fb 44 8d 62 01 49 63 fc e8 06
Stack: [0x000000004537d000,0x000000004547e000], sp=0x000000004547c5e0, free space=1021k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V [libjvm.so+0x5d8a27]
V [libjvm.so+0x474a9d]
V [libjvm.so+0x31f896]
v ~BufferBlob::Interpreter
Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
v ~BufferBlob::Interpreter
J com.sleepycat.je.recovery.Checkpointer.flushIN(Lcom/sleepycat/je/dbi/EnvironmentImpl;
Lcom/sleepycat/je/dbi/DatabaseImpl;Lcom/sleepycat/je/log/LogManager;
Lcom/sleepycat/je/recovery/Checkpointer$CheckpointReference;Lcom/sleepycat/je/recovery/DirtyINMap;
IIZJZLcom/sleepycat/je/recovery/Checkpointer$FlushStats;Lcom/sleepycat/je/cleaner/LocalUtilizationTracker;Z)V
J com.sleepycat.je.recovery.Checkpointer.flushDirtyNodes(Lcom/sleepycat/je/dbi/EnvironmentImpl;Lcom/sleepycat/je/recovery/DirtyINMap;Ljava/util/Map;ZJZLcom/sleepycat/je/recovery/Checkpointer$FlushStats;)V
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::Interpreter
v ~BufferBlob::StubRoutines (1)

Hello,
I know your request is a bit old but I have exactly the same error on a jboss server but no HS_ERR_PID was create...
Java VM: Java HotSpot(TM) 64-Bit Server VM (10.0-b23 mixed mode linux-amd64)
# Problematic frame:
# V [libjvm.so+0x5d8a27]
Do you remember how you solve your problem?
regards
Arnaud

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