[MonetDB-users] eEnd of Stream

nat lu natlu2809 at gmail.com
Fri Oct 28 10:13:37 CEST 2011


Thanks Martin -

This is what I have in the log, not very informative I think. Last few 
lines would be when I shut the machine down I presume, everything else 
appears consistent.

    2011-10-27 20:53:36 MSG TEST2H[8527]: arguments: /usr/bin/mserver5
    --set gdk_dbfarm=/home/ultan/my-farm --dbname=TEST2H --set
    merovingian_uri=mapi:monetdb://boxer:50000/TEST2H --set
    mapi_open=false --set mapi_port=0 --set
    mapi_usock=/home/ultan/my-farm/TEST2H/.mapi.sock --set
    monet_vault_key=/home/ultan/my-farm/TEST2H/.vaultkey --set
    monet_daemon=yes
    2011-10-27 20:53:36 MSG TEST2H[8527]: # MonetDB 5 server v11.5.3
    "Aug2011-SP1"
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Serving database 'TEST2H',
    using 8 threads
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Compiled for
    i686-pc-linux-gnu/32bit with 32bit OIDs dynamically linked
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Found 3.875 GiB available
    main-memory.
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Copyright (c) 1993-July 2008
    CWI.
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Copyright (c) August
    2008-2011 MonetDB B.V., all rights reserved
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Visit
    http://www.monetdb.org/ for further information
    2011-10-27 20:53:36 MSG TEST2H[8527]: # Listening for UNIX domain
    connection requests on
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock
    2011-10-27 20:53:36 MSG TEST2H[8527]: # MonetDB/SQL module loaded
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55739 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55740 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55741 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55742 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55743 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55744 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55745 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55746 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55747 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55748 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55749 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55750 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55751 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55752 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55753 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55754 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:41 MSG merovingian[7189]: proxying client
    localhost.localdomain:55755 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:41 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:43 MSG merovingian[7189]: proxying client
    localhost.localdomain:55756 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:43 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:43 MSG merovingian[7189]: proxying client
    localhost.localdomain:55757 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:43 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:43 MSG merovingian[7189]: proxying client
    localhost.localdomain:55758 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:43 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:43 MSG merovingian[7189]: proxying client
    localhost.localdomain:55759 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:43 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:43 MSG merovingian[7189]: proxying client
    localhost.localdomain:55760 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:43 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55761 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55762 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55763 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55764 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55765 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55766 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55767 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55768 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:45 MSG merovingian[7189]: proxying client
    localhost.localdomain:55769 for database 'TEST2H' to
    mapi:monetdb:///home/ultan/my-farm/TEST2H/.mapi.sock?database=TEST2H
    2011-10-27 20:53:45 MSG merovingian[7189]: target connection is on
    local UNIX domain socket, passing on filedescriptor instead of proxying
    2011-10-27 20:53:48 MSG merovingian[7189]: database 'TEST2H' (8527)
    was killed by signal SIGSEGV
    2011-10-27 21:00:59 MSG merovingian[7189]: caught SIGTERM, starting
    shutdown sequence
    2011-10-27 21:00:59 MSG control[7189]: control channel closed
    2011-10-27 21:00:59 ERR discovery[7189]: error while sending
    broadcast message: Network is unreachable
    2011-10-27 21:00:59 MSG merovingian[7189]: Merovingian 1.5 stopped



On 27/10/11 21:04, Martin Kersten wrote:
> On 10/27/11 9:59 PM, nat lu wrote:
>> I'm using Monet 11.5 on Ubuntu 11.04.
>>
>> Ive created a database and am attempting to run a series of queries against it with a test script. This is in attempt to use Monet with Apache Jena. I had earlier mailed about a problem with temp tables, but have dodged that by using the monetdb account
>> for now.
>>
>> The first few succeed, but then I get the following error:
>>
>>      java.sql.SQLException: Read from localhost:50000: End of stream reached (mserver still alive?)
> Can you check the tail of the merovingian.log file in the dbfarm?
> It may report on issues encountered during the request. (Please note the time stamp)
>
>>
>> Why does this happen, under what circumstances does it arise ? Is there anything I can do to avoid it ?
>>
>>
>> This is the query that it fails on:
>>
>>      SELECT R_1.lex AS V_1_lex, R_1.datatype AS V_1_datatype, R_1.lang AS V_1_lang, R_1.type AS V_1_type,
>>      R_2.lex AS V_2_lex, R_2.datatype AS V_2_datatype, R_2.lang AS V_2_lang, R_2.type AS V_2_type
>>      FROM
>>      ( SELECT T_1.s AS X_1
>>      FROM Triples AS T_1
>>      WHERE ( T_1.p = 2004134117598721274
>>      AND T_1.o = 435905340492217258 )
>>      ) AS T_1
>>      LEFT OUTER JOIN
>>      Triples AS T_2
>>      ON ( T_2.p = 3816485599920428794
>>      AND T_1.X_1 = T_2.s )
>>      LEFT OUTER JOIN
>>      Nodes AS R_1
>>      ON ( T_1.X_1 = R_1.hash )
>>      LEFT OUTER JOIN
>>      Nodes AS R_2
>>      ON ( T_2.o = R_2.hash )
>>
>>
>>
>>
>>
>> ------------------------------------------------------------------------------
>> The demand for IT networking professionals continues to grow, and the
>> demand for specialized networking skills is growing even more rapidly.
>> Take a complimentary Learning at Cisco Self-Assessment and learn
>> about Cisco certifications, training, and career opportunities.
>> http://p.sf.net/sfu/cisco-dev2dev
>>
>>
>>
>> _______________________________________________
>> MonetDB-users mailing list
>> MonetDB-users at lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/monetdb-users
>
> ------------------------------------------------------------------------------
> The demand for IT networking professionals continues to grow, and the
> demand for specialized networking skills is growing even more rapidly.
> Take a complimentary Learning at Cisco Self-Assessment and learn
> about Cisco certifications, training, and career opportunities.
> http://p.sf.net/sfu/cisco-dev2dev
> _______________________________________________
> MonetDB-users mailing list
> MonetDB-users at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/monetdb-users

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