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Conference lassie::ucx

Title:DEC TCP/IP Services for OpenVMS
Notice:Note 2-SSB Kits, 3-FT Kits, 4-Patch Info, 7-QAR System
Moderator:ucxaxp.ucx.lkg.dec.com::TIBBERT
Created:Thu Nov 17 1994
Last Modified:Fri Jun 06 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:5568
Total number of notes:21492

5202.0. "UCX 4.1-Eco 2 - Insufficient Dynamic Memory" by LISALF::BRITO () Thu Feb 06 1997 07:27

    The customer is running: 
    
    Digital TCP/IP Services for OpenVMS Alpha Version V4.1 - ECO Level 2
    on a AlphaServer 4100 5/400 4MB running OpenVMS V6.2-1H3 on a 4100
    cluster (512MB each).
    
    After 3/4 days of uptime the copies via FTP do not work anymore. The
    error is "insufficient dynamic memory".  If we shutdown UCX and start
    again the problem disappears. We have increased already the number
    of small and large buffers, but with no success. 
    
    
    
    Communication Configuration
     
    Local host:      l114dec05              Domain:
     
    Cluster timer:               0
      
    Interfaces:                  0          Type:     Default
    Device_sockets:              0
    Routes:                      0
    Services:                    0
    Proxies:                     0
                               
                              Free     Maximum   Minimum
    Large buffers                0         250        50
    Small buffers                0        1000       250
    IRPs                         0           0
    Non UCX buffers              0
     
    Remote Terminal
      Large buffers:             0
      UCBs:                      0
      Virtual term:     disabled
    
                  System Memory Resources on  6-FEB-1997 09:27:15.92
    
    Nonpaged Dynamic Memory      (Lists + Variable)
    Current Size (bytes)      79994880    Current Size (pagelets)    156240
    Initial Size (NPAGEDYN)   79994880    Initial Size (pagelets)    156240
    Maximum Size (NPAGEVIR)  319995904    Maximum Size (pagelets)    624992
    Free Space (bytes)        65849024    Space in Use (bytes)     14145856
    Size of Largest Block     64997504    Size of Smallest Block         64
    Number of Free Blocks         4658    Free Blocks LEQU 64 Bytes    1530
    Free Blocks on Lookasides     1766    Lookaside Space (bytes)    445632
    
    Paged Dynamic Memory         
    Current Size (PAGEDYN)     4997120    Current Size (pagelets)      9760
    Free Space (bytes)         3410864    Space in Use (bytes)      1586256 
    Size of Largest Block      3407632    Size of Smallest Block         16
    Number of Free Blocks           66    Free Blocks LEQU 64 Bytes      63
    
    What can we do to solve this problem?
    Thanks in advance,
    
    RUI
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5202.1questionsUTRTSC::KNOPPERSOswald KnoppersThu Feb 06 1997 08:267
So where do you get this error? Is the problem with outgoing or incoming
FTP. Do you get any opcom messages? Did you have a look at the FTP
logfiles?

We really need much more info.

Oswald
5202.2Outgoing FTPLISALF::BRITOFri Feb 07 1997 06:1327
    The error appears in the log files of the command procedures (batch
    run) that put the files in other systems (1000 files a day).  

    I am including an extract of the log:

    .
    .
    .

    $       SET NOVERIFY
    $       @AMA$DISK:[FACT.BG.TMP]FTP_BG0_AMA_01_961121.COM
    $ ON ERROR THEN CONTINUE
    $ FTP bghp03
    %FTP-E-NETERR, I/O error on network device
    -SYSTEM-F-INSFMEM, insufficient dynamic memory
    %DCL-W-SKPDAT, image data (records not beginning with "$") ignored
    .
    .
    .

    I have checked the operator.log and there was no ftp or dynamic
    memory error messages.

    I did not find any relevant information in the UCX$FTPD.LOG
    files.

    RUI 
5202.3not sure if this is an ucx problemUTRTSC::KNOPPERSOswald KnoppersFri Feb 07 1997 06:4711
Ok, can you do a 'ucx sho comm' and a 'ucx sho comm/mem' on this system?

Another question. Is this one batch job running all the time and doing the
1000 ftp's a day? If so you might have a look at the accounting record of
such a job. For instance there has been a bug in VMS that if you repeatedly
spawn subprocesses one would loose pagefilequota. Maybe something like that
is happening.

Regards,

Oswald
5202.4LISALF::BRITOFri Feb 07 1997 09:4693
    The cluster was rebooted today, so we can have a quiet weekend.
    
    There is not one job. There are many jobs that run during the day. We
    already checked the accounting. No hints from there.  
                                   
    Here are the result of the commands:
    
    Communication Parameters
     
    Local host:      l114dec05              Domain:
     
    Cluster timer:             5
                                     Maximum     Current        Peak
    Interfaces                            20           3           3
    Device_sockets                       300          10          14
    Routes                             65535           3           3
    Services                             200           4           5
    Proxies                               20
      
    Type:        Ethernet   Free     Maximum   Max Bytes     Minimum   Min Bytes
    Large buffers             68         238      449344          34      64192
    Small buffers            381         889      227584         127      32512
    IRPs                      20         200
    Non UCX buffers           10
     
    Remote Terminal
      Large buffers:          10
      UCBs:                    4
      Virtual term:     disabled
    
    
                                       MBUF Summary
                          Small_static  Large_static  Small_dynamic Large_dynamic
     Total buffers                 127            34              0         0
     Free                           87            33              0         0
     Busy
     Data                           0             1              0          0
     Header                         7             0              0          0
     Socket                        12             0              0          0
     Prot. control                 12             0              0          0
     Route                          3             0              0          0
     Socket name                    0             0              0          0
     Socket options                 0             0              0          0
     Fragment reassembly            0             0              0          0
     IP address                     3             0              0          0
     Size of cluster             32768         64448              0         0
                      
                    Free       Current          Peak          Waits         Drops
     Small Buffers                  40            45              0          0
     Large Buffers                   1            84              0          0
     IRPs              3             8            11              0          0
                          
                        Small clusters  Large clusters    Non UCX buffers
     Free                            0             2              0
    
    We thought it might be a ucx problem, since the UCX shutdown and
    restart solved the problem. But we do not exclude the possibility of a
    problem like the one you mentioned. We already increased the account
    quotas. 
    
    Username: STF_FACT                         Owner:  STF-Factura��o
    Account:  FACT                             UIC:    [121,2]
    ([TLP,STF_FACT])
    CLI:      DCL                              Tables: DCLTABLES
    Default:  FACT$DISK:[FACT]
    LGICMD:   LOGIN
    Flags: 
    Primary days:   Mon Tue Wed Thu Fri        
    Secondary days:                     Sat Sun
    No access restrictions
    Expiration:            (none)    Pwdminimum:  6   Login Fails:     0
    Pwdlifetime:         90 00:00    Pwdchange:  31-JAN-1997 16:59 
    Last Login:  7-FEB-1997 14:32 (interactive),  7-FEB-1997 14:38
    (non-interactive)
    Maxjobs:         0  Fillm:       100  Bytlm:        65000
    Maxacctjobs:     0  Shrfillm:      0  Pbytlm:           0
    Maxdetach:       0  BIOlm:       200  JTquota:       8192
    Prclm:          10  DIOlm:       200  WSdef:         8000
    Prio:            4  ASTlm:       750  WSquo:        16000
    Queprio:         0  TQElm:       100  WSextent:     49152
    CPU:        (none)  Enqlm:      6000  Pgflquo:     400000
    Authorized Privileges: 
      ALTPRI    GRPNAM    NETMBX    SYSLCK    SYSNAM    TMPMBX
    Default Privileges: 
      GRPNAM    NETMBX    SYSNAM    TMPMBX
    Identifier                         Value           Attributes
      PSI$X25_USER                     %X80010012      
     
     
    Regards,
    
    RUI
    
5202.5UTRTSC::KNOPPERSOswald KnoppersMon Feb 10 1997 04:065
>    The cluster was rebooted today, so we can have a quiet weekend.

I am affraid we need these counters after the problem has happened.

Oswald
5202.6UCXAXP::GEMIGNANITue Feb 11 1997 19:1114
    
    Included in the V4.1 kit is an SDA extension for UCX.
    
    It has been enhanced several times and we are sending the latest image
    with the ECOs, as we publish them.
    
    Can you try the following commands when in ANALYZE/SYSTEM:
    
    	SDA> UCX SHOW COMMUNICATION
    	SDA> UCX SHOW COMMUNICATION /MEMORY /FULL /ALL
    
    The first should give you a good summary.  The second will give you
    details of the usage of each MBUF.  You are most interested in those
    marked as "Free".
5202.7LISA2::BRITOThu Feb 20 1997 09:458
    Thank you for your hints. The situation didn't repeat anymore (so far).
    
    Anyway we added a batch job to the system to monitor the ucx memory. 
    If the situation repeats I will use the ana/sys commands.
    
    Regards,
    
    RUI