[j-nsp] jtree0 Memory full on MX480?

Phil Rosenthal pr at isprime.com
Tue Jul 21 20:45:26 EDT 2015


Disabling Basic-Table certainly bought you some time.

Agree that it still does not look good. I suspect that you are running into a software issue.  11.4 is no longer a supported version, 12.3 is the minimum supported today, with 13.3R6 as the recommended version.  Is it possible for you to upgrade?

Best Regards,
-Phil
> On Jul 21, 2015, at 7:23 PM, Jeff Meyers <Jeff.Meyers at gmx.net> wrote:
> 
> Hi Phil,
> 
> sure:
> 
> 
> {master}
> jeff at cr0> show configuration | display set | match rpf-check
> 
> {master}
> nico at FRA4.cr0> show version
> Hostname: cr0
> Model: mx480
> JUNOS Base OS boot [11.4R9.4]
> JUNOS Base OS Software Suite [11.4R9.4]
> JUNOS Kernel Software Suite [11.4R9.4]
> JUNOS Crypto Software Suite [11.4R9.4]
> JUNOS Packet Forwarding Engine Support (M/T Common) [11.4R9.4]
> JUNOS Packet Forwarding Engine Support (MX Common) [11.4R9.4]
> JUNOS Online Documentation [11.4R9.4]
> JUNOS Voice Services Container package [11.4R9.4]
> JUNOS Border Gateway Function package [11.4R9.4]
> JUNOS Services AACL Container package [11.4R9.4]
> JUNOS Services LL-PDF Container package [11.4R9.4]
> JUNOS Services PTSP Container package [11.4R9.4]
> JUNOS Services Stateful Firewall [11.4R9.4]
> JUNOS Services NAT [11.4R9.4]
> JUNOS Services Application Level Gateways [11.4R9.4]
> JUNOS Services Captive Portal and Content Delivery Container package [11.4R9.4]
> JUNOS Services RPM [11.4R9.4]
> JUNOS Services HTTP Content Management package [11.4R9.4]
> JUNOS AppId Services [11.4R9.4]
> JUNOS IDP Services [11.4R9.4]
> JUNOS Services Crypto [11.4R9.4]
> JUNOS Services SSL [11.4R9.4]
> JUNOS Services IPSec [11.4R9.4]
> JUNOS Runtime Software Suite [11.4R9.4]
> JUNOS Routing Software Suite [11.4R9.4]
> 
> {master}
> nico at FRA4.cr0> show route summary
> Autonomous system number: XXXXX
> Router ID: A.B.C.D
> 
> inet.0: 546231 destinations, 1747898 routes (545029 active, 11 holddown, 2994 hidden)
>              Direct:   1143 routes,   1140 active
>               Local:   1144 routes,   1144 active
>                OSPF:     81 routes,     18 active
>                 BGP: 1745429 routes, 542631 active
>              Static:    100 routes,     95 active
>                IGMP:      1 routes,      1 active
> 
> Basic-Table.inet.0: 212783 destinations, 215070 routes (212778 active, 5 holddown, 0 hidden)
>              Direct:   2283 routes,   1140 active
>               Local:   2288 routes,   1144 active
>                OSPF:     17 routes,     17 active
>                 BGP: 210387 routes, 210382 active
>              Static:     95 routes,     95 active
> 
> inet6.0: 23331 destinations, 39242 routes (23330 active, 1 holddown, 113 hidden)
>              Direct:    451 routes,    368 active
>               Local:    373 routes,    373 active
>               OSPF3:      9 routes,      9 active
>                 BGP:  38399 routes,  22571 active
>              Static:     10 routes,      9 active
> 
> Basic-Table.inet6.0: 12295 destinations, 12295 routes (12292 active, 3 holddown, 0 hidden)
>              Direct:    366 routes,    366 active
>               Local:    373 routes,    373 active
>               OSPF3:      8 routes,      8 active
>                 BGP:  11539 routes,  11536 active
>              Static:      9 routes,      9 active
> 
> {master}
> 
> 
> I actually thought this "Basic-Table" was inactive. It is not so I'm going to deactive it now. Since it was holding > 200k routes, this is for sure a lot. Doing that made the syslog message disappear but it didn't actually free up as much as I was hoping for:
> 
> GOT: Jtree memory segment 0 (Context: 0x44976cc8)
> GOT: -------------------------------------------
> GOT: Memory Statistics:
> GOT:    16777216 bytes total
> GOT:    14613176 bytes used
> GOT:     2145824 bytes available (865792 bytes from free pages)
> GOT:        3024 bytes wasted
> GOT:       15192 bytes unusable
> GOT:       32768 pages total
> GOT:        6338 pages used (2568 pages used in page alloc)
> GOT:       24739 pages partially used
> GOT:        1691 pages free (max contiguous = 380)
> 
> 
> Still doesn't look to glorious, right?
> 
> 
> Best,
> Jeff
> 
> 
> Am 22.07.2015 um 01:06 schrieb Phil Rosenthal:
>> Can you paste the output of these commands:
>> show conf | display set | match rpf-check
>> show ver
>> show route sum
>> 
>> DPC should have enough memory for ~1M FIB.  This can get divided in half if you are using RPF. If you have multiple routing instances, this also can contribute to the problem.
>> 
>> Best Regards,
>> -Phil Rosenthal
>>> On Jul 21, 2015, at 6:56 PM, Jeff Meyers <Jeff.Meyers at gmx.net> wrote:
>>> 
>>> Hello list,
>>> 
>>> we seem to be running into limits with a MX480 with RE-2000 and 2x DPCE-4XGE-R since we are seeing these new messages in the syslog:
>>> 
>>> 
>>> Jul 22 00:50:36  cr0 fpc0 RSMON: Resource Category:jtree Instance:jtree0-seg0 Type:free-dwords Available:83072 is less than LWM limit:104857, rsmon_syslog_limit()
>>> Jul 22 00:50:36  cr0 fpc0 RSMON: Resource Category:jtree Instance:jtree1-seg0 Type:free-pages Available:1326 is less than LWM limit:1638, rsmon_syslog_limit()
>>> Jul 22 00:50:36  cr0 fpc1 RSMON: Resource Category:jtree Instance:jtree0-seg0 Type:free-pages Available:1316 is less than LWM limit:1638, rsmon_syslog_limit()
>>> Jul 22 00:50:37  cr0 fpc1 RSMON: Resource Category:jtree Instance:jtree0-seg0 Type:free-dwords Available:84224 is less than LWM limit:104857, rsmon_syslog_limit()
>>> Jul 22 00:50:37  cr0 fpc0 RSMON: Resource Category:jtree Instance:jtree1-seg0 Type:free-dwords Available:84864 is less than LWM limit:104857, rsmon_syslog_limit()
>>> 
>>> 
>>> Here is some more output from the FPC:
>>> 
>>> 
>>> jeff at cr0> request pfe execute target fpc0 command "show rsmon"
>>> SENT: Ukern command: show rsmon
>>> GOT:
>>> GOT: category    instance        type    total  lwm_limit hwm_limit     free
>>> GOT: -------- ----------- ------------ -------- --------- --------- --------
>>> GOT:    jtree jtree0-seg0   free-pages    32768      1638      4915     1245
>>> GOT:    jtree jtree0-seg0  free-dwords  2097152    104857    314572    79680
>>> GOT:    jtree jtree0-seg1   free-pages    32768      1638      4915    22675
>>> GOT:    jtree jtree0-seg1  free-dwords  2097152    104857    314572  1451200
>>> GOT:    jtree jtree1-seg0   free-pages    32768      1638      4915     1267
>>> GOT:    jtree jtree1-seg0  free-dwords  2097152    104857    314572    81088
>>> GOT:    jtree jtree1-seg1   free-pages    32768      1638      4915    23743
>>> GOT:    jtree jtree1-seg1  free-dwords  2097152    104857    314572  1519552
>>> GOT:    jtree jtree2-seg0   free-pages    32768      1638      4915     1266
>>> GOT:    jtree jtree2-seg0  free-dwords  2097152    104857    314572    81024
>>> GOT:    jtree jtree2-seg1   free-pages    32768      1638      4915    23732
>>> GOT:    jtree jtree2-seg1  free-dwords  2097152    104857    314572  1518848
>>> GOT:    jtree jtree3-seg0   free-pages    32768      1638      4915     1232
>>> GOT:    jtree jtree3-seg0  free-dwords  2097152    104857    314572    78848
>>> GOT:    jtree jtree3-seg1   free-pages    32768      1638      4915    23731
>>> GOT:    jtree jtree3-seg1  free-dwords  2097152    104857    314572  1518784
>>> LOCAL: End of file
>>> 
>>> {master}
>>> jeff at cr0> request pfe execute target fpc0 command "show jtree 0 memory extensive"
>>> SENT: Ukern command: show jtree 0 memory extensive
>>> GOT:
>>> GOT: Jtree memory segment 0 (Context: 0x44976cc8)
>>> GOT: -------------------------------------------
>>> GOT: Memory Statistics:
>>> GOT:    16777216 bytes total
>>> GOT:    15299920 bytes used
>>> GOT:     1459080 bytes available (660480 bytes from free pages)
>>> GOT:        3024 bytes wasted
>>> GOT:       15192 bytes unusable
>>> GOT:       32768 pages total
>>> GOT:       26528 pages used (2568 pages used in page alloc)
>>> GOT:        4950 pages partially used
>>> GOT:        1290 pages free (max contiguous = 373)
>>> GOT:
>>> GOT:  Partially Filled Pages (In bytes):-
>>> GOT:       Unit    Avail Overhead
>>> GOT:          8   674344        0
>>> GOT:         16   107840        0
>>> GOT:         24    13296     4792
>>> GOT:         32      288        0
>>> GOT:         48     2832    10400
>>> GOT:
>>> GOT:  Free Page Lists(Pg Size = 512 bytes):-
>>> GOT:            Page Bucket Avail(Bytes)
>>> GOT:                    1-1   140288
>>> GOT:                    2-2   112640
>>> GOT:                    3-3    76800
>>> GOT:                    4-4    49152
>>> GOT:                    5-5     7680
>>> GOT:                    6-6    15360
>>> GOT:                    7-7    25088
>>> GOT:                    8-8     8192
>>> GOT:                   9-11     5632
>>> GOT:                  12-17     6656
>>> GOT:                  18-26    22016
>>> GOT:               27-32768   190976
>>> GOT:
>>> GOT:  Fragmentation Index = 0.869, (largest free = 190976)
>>> GOT:  Counters:
>>> GOT:   465261655 allocs (0 failed)
>>> GOT:           0 releases(partial 0)
>>> GOT:   463785484 frees
>>> GOT:           0 holds
>>> GOT:           9 pending frees(pending bytes 88)
>>> GOT:           0 pending forced
>>> GOT:           0 times free blocked
>>> GOT:           0 sync writes
>>> GOT:  Error Counters:-
>>> GOT:           0 bad params
>>> GOT:           0 failed frees
>>> GOT:           0 bad cookie
>>> GOT:
>>> GOT: Jtree memory segment 1 (Context: 0x449f87e8)
>>> GOT: -------------------------------------------
>>> GOT: Memory Statistics:
>>> GOT:    16777216 bytes total
>>> GOT:     5123760 bytes used
>>> GOT:    11650408 bytes available (11609600 bytes from free pages)
>>> GOT:        2704 bytes wasted
>>> GOT:         344 bytes unusable
>>> GOT:       32768 pages total
>>> GOT:        9912 pages used (8976 pages used in page alloc)
>>> GOT:         181 pages partially used
>>> GOT:       22675 pages free (max contiguous = 22672)
>>> GOT:
>>> GOT:  Partially Filled Pages (In bytes):-
>>> GOT:       Unit    Avail Overhead
>>> GOT:          8    25352        0
>>> GOT:         16    11072        0
>>> GOT:         32      384        0
>>> GOT:         40      440       32
>>> GOT:         48     1056      256
>>> GOT:         56      448        8
>>> GOT:         64      448        0
>>> GOT:         72      360        8
>>> GOT:         80      400       32
>>> GOT:        168      336       16
>>> GOT:        256      512       32
>>> GOT:
>>> GOT:  Free Page Lists(Pg Size = 512 bytes):-
>>> GOT:            Page Bucket Avail(Bytes)
>>> GOT:                    3-3     1536
>>> GOT:               27-32768 11608064
>>> GOT:
>>> GOT:  Fragmentation Index = 0.004, (largest free = 11608064)
>>> GOT:  Counters:
>>> GOT:    29941803 allocs (0 failed)
>>> GOT:           0 releases(partial 0)
>>> GOT:    29888786 frees
>>> GOT:           0 holds
>>> GOT:           1 pending frees(pending bytes 8)
>>> GOT:           0 pending forced
>>> GOT:           0 times free blocked
>>> GOT:           0 sync writes
>>> GOT:  Error Counters:-
>>> GOT:           0 bad params
>>> GOT:           0 failed frees
>>> GOT:           0 bad cookie
>>> GOT:
>>> GOT:
>>> GOT: Context: 0x4296cc58
>>> LOCAL: End of file
>>> 
>>> 
>>> I furthermore found this article on Juniper KB:
>>> 
>>> 
>>> http://kb.juniper.net/InfoCenter/index?page=content&id=KB19015&actp=search&viewlocale=en_US&searchid=1236602855555
>>> 
>>> 
>>> Is it really possible the MX480 cannot handle more than roughly 500k routes in the FPC? What are my options here? Do I have to upgrade the SCB + get some new interfaces modules in order to keep this box running?
>>> 
>>> What are my options to get some time? Where is the right knob to aggregate routes (if that's a good idea) to - let's say - /23?
>>> 
>>> 
>>> Thanks in advance!
>>> 
>>> 
>>> 
>>> Jeff
>>> _______________________________________________
>>> juniper-nsp mailing list juniper-nsp at puck.nether.net
>>> https://puck.nether.net/mailman/listinfo/juniper-nsp
>> 
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