[ADMIN] 7.3.2 strange behavior (long)

andrea suisani Thu, 20 Mar 2003 05:01:21 -0800

Hello,

Firstly I apologise for my terrible english.
we are using postgresql 7.2.x (currently 7.2.4)
on our production server for last year (and also
 we are on suse 7.2).

Last night i was working on the project for
porting our application on pgsql 7.3.2 when a strange
thing happen. The machine hangs (not only postgres) after
I submit via psql this query "update coop_uni set msg_quote=''"
to the server. The structure of this table is:

coop2003=> \d coop_uni
                 Table "public.coop_uni"
    Column    |           Type           |   Modifiers
--------------+--------------------------+---------------
 prefisso     | character varying(6)     |
 telefono     | character varying(20)    |
 cap          | character varying(6)     |
 cod_com      | integer                  |
 cod_prov     | integer                  |
 citta        | character(35)            |
 nome_cognome | character varying(70)    |
 capoluo      | integer                  |
 estrazione   | timestamp with time zone |
 id           | integer                  |
 rand         | double precision         |
 num_estra    | integer                  | default 0
 occupato     | boolean                  | default false
 tipo         | integer                  |
 strato       | integer                  |
 sample       | integer                  |
 msg_quote    | character varying(20)    |
Indexes: id_tipo_uni_idx btree (id, tipo),
         iduni_idx btree (id),
         pre_tel_idx btree (prefisso, telefono),
         prov_capo_rand_idx btree (cod_prov, capoluo, rand),
         strato_idx btree (tipo, strato, sample)

follow the log of postgres during crash:

[snip]

2003-03-19 23:48:20 [3840] LOG: query: select oid,* from coop_uni ; 2003-03-19 23:48:20 [3840] DEBUG: ProcessQuery 2003-03-19 23:48:23 [3840] DEBUG: CommitTransactionCommand 2003-03-19 23:48:23 [3840] LOG: duration: 3.048701 sec 2003-03-19 23:48:35 [3840] DEBUG: StartTransactionCommand 2003-03-19 23:48:35 [3840] LOG: query: select oid,* from coop_uni order by oid; 2003-03-19 23:48:35 [3840] DEBUG: ProcessQuery 2003-03-19 23:48:39 [3840] DEBUG: CommitTransactionCommand 2003-03-19 23:48:39 [3840] LOG: duration: 4.403131 sec [EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@ [EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL PROTECTED]@[EMAIL 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When i try to manually reboot the box
I have another problem. the machine hangs during
the boot with this message:

"Unable to handle kernel paging request at virtual address dc7d00
printing eip:
c01ad272
* pde = 17edb...
 ....
 Oops:  000
 CPU: 0

...."

I've tried again and after the third manual reboot
the machine boot correctly. After that I start postgres7.3.2.
This is the log:

DEBUG:  /opt/postgres-7.3.2/bin/postmaster: PostmasterMain: initial environ dump:
2003-03-19 23:56:09 [601]    DEBUG:  -----------------------------------------
2003-03-19 23:56:09 [601]    DEBUG:     PWD=/var/lib/pgsql
2003-03-19 23:56:09 [601]    DEBUG:     PAGER=less
2003-03-19 23:56:09 [601]    DEBUG:     HOSTNAME=suino
2003-03-19 23:56:09 [601]    DEBUG:     LESSCLOSE=lessclose.sh %s %s
2003-03-19 23:56:09 [601]    DEBUG:     LS_OPTIONS=-N --color=tty -T 0

[snip]

2003-03-19 23:56:09 [601] DEBUG: LC_COLLATE=POSIX 2003-03-19 23:56:09 [601] DEBUG: _=/opt/postgres-7.3.2/bin/postmaster 2003-03-19 23:56:09 [601] DEBUG: ----------------------------------------- 2003-03-19 23:56:09 [601] DEBUG: FindExec: found "/opt/postgres-7.3.2/bin/postgres" using argv[0] 2003-03-19 23:56:09 [601] DEBUG: invoking IpcMemoryCreate(size=1466368) 2003-03-19 23:56:09 [601] DEBUG: FindExec: found "/opt/postgres-7.3.2/bin/postmaster" using argv[0] 2003-03-19 23:56:09 [605] LOG: database system was interrupted at 2003-03-19 23:49:59 CET 2003-03-19 23:56:09 [605] LOG: checkpoint record is at 0/7FDABC0 2003-03-19 23:56:09 [605] LOG: redo record is at 0/7FDABC0; undo record is at 0/0; shutdown FALSE 2003-03-19 23:56:09 [605] LOG: next transaction id: 1446; next oid: 222355 2003-03-19 23:56:09 [605] LOG: database system was not properly shut down; automatic recovery in progress 2003-03-19 23:56:09 [605] LOG: redo starts at 0/7FDAC00 2003-03-19 23:56:20 [605] LOG: ReadRecord: record with zero length at 0/93508AC 2003-03-19 23:56:20 [605] LOG: redo done at 0/9350870 2003-03-19 23:56:24 [605] LOG: recycled transaction log file 0000000000000006 2003-03-19 23:56:24 [605] LOG: database system is ready


Anyways the db design is very simple
(no trigger, no fks, and there are only few
store procs written in plpgsql)


The developing box is a "small" machine
(celeron 1.2GHZ,ram 384MB, no scsi disks and
PGDATA is on one ide disk), the kernel version
is 2.4.20

I wanted to ask to you if this problem can have had
to a hardware issue or to something else.

Andrea Suisani

other info:

- [EMAIL PROTECTED]:postgres7.3.2 $ pg_config --configure
'--prefix=/opt/postgres-7.3.2/' '--with-perl' '--with-tcl' '--with-tk' 
'--enable-syslog'

- the file $PGDATA/postgresql.conf is the one that come from intallation without any modification

- cat $PGDATA/postmaster.opts:
/opt/postgres-7.3.2/bin/postmaster '-p' '5433' '-d' '2' '-i'

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[ADMIN] 7.3.2 strange behavior (long)

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