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Type:
Bug
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Resolution: Done
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Priority:
Major - P3
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None
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Affects Version/s: 1.0.1
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Component/s: Replication
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Environment:processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 270
stepping : 2
cpu MHz : 2004.542
cache size : 1024 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu tsc msr pae mce cx8 apic mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy
bogomips : 4011.50
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
processor : 1
vendor_id : AuthenticAMD
cpu family : 15
model : 33
model name : Dual Core AMD Opteron(tm) Processor 270
stepping : 2
cpu MHz : 2004.542
cache size : 1024 KB
physical id : 1
siblings : 1
core id : 0
cpu cores : 1
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu tsc msr pae mce cx8 apic mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow up pni lahf_lm cmp_legacy
bogomips : 4011.50
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 40 bits physical, 48 bits virtual
power management: ts fid vid ttp
Linux ec2-xxx-xxx-xxx-xxx.compute-1.amazonaws.com 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:34:28 EST 2008 x86_64 x86_64 x86_64 GNU/Linux
* slave(s):
Thu Oct 29 17:12:54 Mongo DB : starting : pid = 32723 port = 27017 dbpath = /mongo/master master = 0 slave = 1 64-bit
Thu Oct 29 17:12:54 db version v1.0.1, pdfile version 4.4
Thu Oct 29 17:12:54 git version: e316c78bc3dcbd0729454b81eff4e172579c1bc0
Thu Oct 29 17:12:54 sys info: Linux ofc-n1.10gen.com 2.6.23.17-88.fc7 #1 SMP Thu May 15 00:02:29 EDT 2008 x86_64
2x256GB EBS volumes, stripped. 80% used.
* master:
Tue Sep 22 21:07:41 Mongo DB : starting : pid = 3063 port = 27017 dbpath = /mnt/mongo/master master = 1 slave = 0 64-bit
Tue Sep 22 21:07:41 db version v1.0.0, pdfile version 4.4
Tue Sep 22 21:07:41 git version: dabf2ce54614c6de9d728af445eec47f39dde19f
Tue Sep 22 21:07:41 sys info: Linux ofc-n1.10gen.com 2.6.23.17-88.fc7 #1 SMP Thu May 15 00:02:29 EDT 2008 x86_64
4x420GB (local, ephemeral) stripped, 26% used
processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 33 model name : Dual Core AMD Opteron(tm) Processor 270 stepping : 2 cpu MHz : 2004.542 cache size : 1024 KB physical id : 0 siblings : 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu tsc msr pae mce cx8 apic mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy bogomips : 4011.50 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp processor : 1 vendor_id : AuthenticAMD cpu family : 15 model : 33 model name : Dual Core AMD Opteron(tm) Processor 270 stepping : 2 cpu MHz : 2004.542 cache size : 1024 KB physical id : 1 siblings : 1 core id : 0 cpu cores : 1 fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu tsc msr pae mce cx8 apic mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow up pni lahf_lm cmp_legacy bogomips : 4011.50 TLB size : 1024 4K pages clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management: ts fid vid ttp Linux ec2-xxx-xxx-xxx-xxx.compute-1.amazonaws.com 2.6.21.7-2.fc8xen #1 SMP Fri Feb 15 12:34:28 EST 2008 x86_64 x86_64 x86_64 GNU/Linux * slave(s): Thu Oct 29 17:12:54 Mongo DB : starting : pid = 32723 port = 27017 dbpath = /mongo/master master = 0 slave = 1 64-bit Thu Oct 29 17:12:54 db version v1.0.1, pdfile version 4.4 Thu Oct 29 17:12:54 git version: e316c78bc3dcbd0729454b81eff4e172579c1bc0 Thu Oct 29 17:12:54 sys info: Linux ofc-n1.10gen.com 2.6.23.17-88.fc7 #1 SMP Thu May 15 00:02:29 EDT 2008 x86_64 2x256GB EBS volumes, stripped. 80% used. * master: Tue Sep 22 21:07:41 Mongo DB : starting : pid = 3063 port = 27017 dbpath = /mnt/mongo/master master = 1 slave = 0 64-bit Tue Sep 22 21:07:41 db version v1.0.0, pdfile version 4.4 Tue Sep 22 21:07:41 git version: dabf2ce54614c6de9d728af445eec47f39dde19f Tue Sep 22 21:07:41 sys info: Linux ofc-n1.10gen.com 2.6.23.17-88.fc7 #1 SMP Thu May 15 00:02:29 EDT 2008 x86_64 4x420GB (local, ephemeral) stripped, 26% used
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Just posted a message on the group with a complete description: http://groups.google.com/group/mongodb-user/browse_frm/thread/2fd21b8791de910c
Basically, we're witnessing increasing lag, up to 30 hours on our slaves, with no particular reason (no heavy concurrent updates, not much reading, etc ...)
Trying to upgrade to a bigger hardware platform, but data migration is a very big issue for us ...