That is what I got from gdb:
TopMemoryContext: 88992 total in 10 blocks; 10336 free (7 chunks); 78656 used
Type information cache: 24576 total in 2 blocks; 11888 free (5 chunks); 12688 used
Operator lookup cache: 24576 total in 2 blocks; 11888 free (5 chunks); 12688 used
Operator class cache: 8192 total in 1 blocks; 1680 free (0 chunks); 6512 used
TopTransactionContext: 8192 total in 1 blocks; 7648 free (1 chunks); 544 used
MessageContext: 73728 total in 4 blocks; 14752 free (3 chunks); 58976 used
smgr relation table: 24576 total in 2 blocks; 13904 free (4 chunks); 10672 used
TransactionAbortContext: 32768 total in 1 blocks; 32736 free (0 chunks); 32 used
Portal hash: 8192 total in 1 blocks; 1680 free (0 chunks); 6512 used
PortalMemory: 8192 total in 1 blocks; 7888 free (0 chunks); 304 used
PortalHeapMemory: 1024 total in 1 blocks; 744 free (0 chunks); 280 used
ExecutorState: 11586756656 total in 1391 blocks; 4938408 free (6 chunks); 11581818248 used
TIDBitmap: 57344 total in 3 blocks; 23936 free (8 chunks); 33408 used
ExprContext: 0 total in 0 blocks; 0 free (0 chunks); 0 used
ExprContext: 8192 total in 1 blocks; 8016 free (0 chunks); 176 used
ExprContext: 0 total in 0 blocks; 0 free (0 chunks); 0 used
Relcache by OID: 24576 total in 2 blocks; 14912 free (3 chunks); 9664 used
CacheMemoryContext: 817392 total in 20 blocks; 145728 free (0 chunks); 671664 used
uni_codauten: 2048 total in 1 blocks; 752 free (0 chunks); 1296 used
pk_nfe: 2048 total in 1 blocks; 632 free (0 chunks); 1416 used
idx_wm_nfsp_dtemis: 2048 total in 1 blocks; 752 free (0 chunks); 1296 used
idx_wm_nfsp_codpre: 2048 total in 1 blocks; 704 free (0 chunks); 1344 used
wm_nfsp_pkey: 2048 total in 1 blocks; 440 free (0 chunks); 1608 used
pg_index_indrelid_index: 2048 total in 1 blocks; 704 free (0 chunks); 1344 used
pg_attrdef_adrelid_adnum_index: 2048 total in 1 blocks; 608 free (0 chunks); 1440 used
pg_ts_dict_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_aggregate_fnoid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_language_name_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_statistic_relid_att_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_ts_dict_dictname_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_namespace_nspname_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_opfamily_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_opclass_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_ts_parser_prsname_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_amop_fam_strat_index: 3072 total in 2 blocks; 1384 free (2 chunks); 1688 used
pg_opclass_am_name_nsp_index: 3072 total in 2 blocks; 1624 free (3 chunks); 1448 used
pg_trigger_tgrelid_tgname_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_cast_source_target_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_auth_members_role_member_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_attribute_relid_attnum_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_ts_config_cfgname_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_authid_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_ts_config_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_conversion_default_index: 3072 total in 2 blocks; 1432 free (3 chunks); 1640 used
pg_language_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_enum_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_proc_proname_args_nsp_index: 3072 total in 2 blocks; 1624 free (3 chunks); 1448 used
pg_ts_parser_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_database_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_conversion_name_nsp_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_class_relname_nsp_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_attribute_relid_attnam_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_class_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_amproc_fam_proc_index: 3072 total in 2 blocks; 1384 free (2 chunks); 1688 used
pg_operator_oprname_l_r_n_index: 3072 total in 2 blocks; 1384 free (2 chunks); 1688 used
pg_index_indexrelid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_type_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_rewrite_rel_rulename_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_authid_rolname_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_auth_members_member_role_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_enum_typid_label_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_constraint_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_conversion_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_ts_template_tmplname_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_ts_config_map_index: 3072 total in 2 blocks; 1624 free (3 chunks); 1448 used
pg_namespace_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
pg_type_typname_nsp_index: 3072 total in 2 blocks; 1648 free (2 chunks); 1424 used
pg_operator_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_amop_opr_fam_index: 3072 total in 2 blocks; 1600 free (2 chunks); 1472 used
pg_proc_oid_index: 3072 total in 2 blocks; 1696 free (2 chunks); 1376 used
pg_opfamily_am_name_nsp_index: 3072 total in 2 blocks; 1624 free (3 chunks); 1448 used
pg_ts_template_oid_index: 3072 total in 2 blocks; 1744 free (3 chunks); 1328 used
MdSmgr: 8192 total in 1 blocks; 7520 free (0 chunks); 672 used
LOCALLOCK hash: 24576 total in 2 blocks; 15984 free (5 chunks); 8592 used
Timezones: 53584 total in 2 blocks; 3744 free (0 chunks); 49840 used
ErrorContext: 8192 total in 1 blocks; 8160 free (3 chunks); 32 used
There is NO WARRANTY, to the extent permitted by law. Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-redhat-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Attaching to process 31446
Reading symbols from /usr/local/pgsql/bin/postgres...(no debugging symbols found)...done.
Reading symbols from /lib64/libcrypt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib64/libcrypt.so.1
Reading symbols from /lib64/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libdl.so.2
Reading symbols from /lib64/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libm.so.6
Reading symbols from /lib64/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib64/libc.so.6
Reading symbols from /lib64/libfreebl3.so...(no debugging symbols found)...done.
Loaded symbols for /lib64/libfreebl3.so
Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/ld-linux-x86-64.so.2
Reading symbols from /lib64/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib64/libnss_files.so.2
0x000000395d6e83e2 in recv () from /lib64/libc.so.6
Missing separate debuginfos, use: debuginfo-install glibc-2.12-1.80.el6.x86_64 nss-softokn-freebl-3.12.9-11.el6.x86_64
(gdb) cont
Continuing.
bt
^C
Program received signal SIGINT, Interrupt.
0x00000000005ff177 in record_out ()
(gdb) bt
#0 0x00000000005ff177 in record_out ()
#1 0x000000000065b73f in FunctionCall1 ()
#2 0x000000000065c61b in OutputFunctionCall ()
#3 0x00000000004495cc in printtup ()
#4 0x000000000051e6a3 in ExecutorRun ()
#5 0x00000000005b658a in PortalRunSelect ()
#6 0x00000000005b7af9 in PortalRun ()
#7 0x00000000005b2ddf in exec_simple_query ()
#8 0x00000000005b4423 in PostgresMain ()
#9 0x00000000005881e4 in ServerLoop ()
#10 0x000000000058a1e5 in PostmasterMain ()
#11 0x0000000000540cf8 in main ()
(gdb) ^C(gdb) Quit
(gdb) bt
#0 0x00000000005ff177 in record_out ()
#1 0x000000000065b73f in FunctionCall1 ()
#2 0x000000000065c61b in OutputFunctionCall ()
#3 0x00000000004495cc in printtup ()
#4 0x000000000051e6a3 in ExecutorRun ()
#5 0x00000000005b658a in PortalRunSelect ()
#6 0x00000000005b7af9 in PortalRun ()
#7 0x00000000005b2ddf in exec_simple_query ()
#8 0x00000000005b4423 in PostgresMain ()
#9 0x00000000005881e4 in ServerLoop ()
#10 0x000000000058a1e5 in PostmasterMain ()
#11 0x0000000000540cf8 in main ()
(gdb) ^C(gdb) Quit
(gdb) bt
#0 0x00000000005ff177 in record_out ()
#1 0x000000000065b73f in FunctionCall1 ()
#2 0x000000000065c61b in OutputFunctionCall ()
#3 0x00000000004495cc in printtup ()
#4 0x000000000051e6a3 in ExecutorRun ()
#5 0x00000000005b658a in PortalRunSelect ()
#6 0x00000000005b7af9 in PortalRun ()
#7 0x00000000005b2ddf in exec_simple_query ()
#8 0x00000000005b4423 in PostgresMain ()
#9 0x00000000005881e4 in ServerLoop ()
#10 0x000000000058a1e5 in PostmasterMain ()
#11 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x000000395d688ae9 in memcpy () from /lib64/libc.so.6
(gdb) bt
#0 0x000000395d688ae9 in memcpy () from /lib64/libc.so.6
#1 0x000000000046314f in heap_tuple_untoast_attr ()
#2 0x00000000005fb2ef in numeric_out ()
#3 0x000000000065b73f in FunctionCall1 ()
#4 0x000000000065c61b in OutputFunctionCall ()
#5 0x00000000005ff121 in record_out ()
#6 0x000000000065b73f in FunctionCall1 ()
#7 0x000000000065c61b in OutputFunctionCall ()
#8 0x00000000004495cc in printtup ()
#9 0x000000000051e6a3 in ExecutorRun ()
#10 0x00000000005b658a in PortalRunSelect ()
#11 0x00000000005b7af9 in PortalRun ()
#12 0x00000000005b2ddf in exec_simple_query ()
#13 0x00000000005b4423 in PostgresMain ()
#14 0x00000000005881e4 in ServerLoop ()
#15 0x000000000058a1e5 in PostmasterMain ()
#16 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00000000005395d0 in appendStringInfoChar ()
(gdb) bt
#0 0x00000000005395d0 in appendStringInfoChar ()
#1 0x00000000005ff1e6 in record_out ()
#2 0x000000000065b73f in FunctionCall1 ()
#3 0x000000000065c61b in OutputFunctionCall ()
#4 0x00000000004495cc in printtup ()
#5 0x000000000051e6a3 in ExecutorRun ()
#6 0x00000000005b658a in PortalRunSelect ()
#7 0x00000000005b7af9 in PortalRun ()
#8 0x00000000005b2ddf in exec_simple_query ()
#9 0x00000000005b4423 in PostgresMain ()
#10 0x00000000005881e4 in ServerLoop ()
#11 0x000000000058a1e5 in PostmasterMain ()
#12 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00000000005ed175 in int2out ()
(gdb) bt
#0 0x00000000005ed175 in int2out ()
#1 0x000000000065b73f in FunctionCall1 ()
#2 0x000000000065c61b in OutputFunctionCall ()
#3 0x00000000005ff121 in record_out ()
#4 0x000000000065b73f in FunctionCall1 ()
#5 0x000000000065c61b in OutputFunctionCall ()
#6 0x00000000004495cc in printtup ()
#7 0x000000000051e6a3 in ExecutorRun ()
#8 0x00000000005b658a in PortalRunSelect ()
#9 0x00000000005b7af9 in PortalRun ()
#10 0x00000000005b2ddf in exec_simple_query ()
#11 0x00000000005b4423 in PostgresMain ()
#12 0x00000000005881e4 in ServerLoop ()
#13 0x000000000058a1e5 in PostmasterMain ()
#14 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00000000005f5ab0 in get_str_from_var ()
(gdb) bt
#0 0x00000000005f5ab0 in get_str_from_var ()
#1 0x00000000005fb33b in numeric_out ()
#2 0x000000000065b73f in FunctionCall1 ()
#3 0x000000000065c61b in OutputFunctionCall ()
#4 0x00000000005ff121 in record_out ()
#5 0x000000000065b73f in FunctionCall1 ()
#6 0x000000000065c61b in OutputFunctionCall ()
#7 0x00000000004495cc in printtup ()
#8 0x000000000051e6a3 in ExecutorRun ()
#9 0x00000000005b658a in PortalRunSelect ()
#10 0x00000000005b7af9 in PortalRun ()
#11 0x00000000005b2ddf in exec_simple_query ()
#12 0x00000000005b4423 in PostgresMain ()
#13 0x00000000005881e4 in ServerLoop ()
#14 0x000000000058a1e5 in PostmasterMain ()
#15 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x0000000000671990 in AllocSetAlloc ()
(gdb) bt
#0 0x0000000000671990 in AllocSetAlloc ()
#1 0x00000000005f5136 in alloc_var ()
#2 0x00000000005f5192 in set_var_from_num ()
#3 0x00000000005fb32f in numeric_out ()
#4 0x000000000065b73f in FunctionCall1 ()
#5 0x000000000065c61b in OutputFunctionCall ()
#6 0x00000000005ff121 in record_out ()
#7 0x000000000065b73f in FunctionCall1 ()
#8 0x000000000065c61b in OutputFunctionCall ()
#9 0x00000000004495cc in printtup ()
#10 0x000000000051e6a3 in ExecutorRun ()
#11 0x00000000005b658a in PortalRunSelect ()
#12 0x00000000005b7af9 in PortalRun ()
#13 0x00000000005b2ddf in exec_simple_query ()
#14 0x00000000005b4423 in PostgresMain ()
#15 0x00000000005881e4 in ServerLoop ()
#16 0x000000000058a1e5 in PostmasterMain ()
#17 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00000000006719a2 in AllocSetAlloc ()
(gdb) bt
#0 0x00000000006719a2 in AllocSetAlloc ()
#1 0x0000000000463136 in heap_tuple_untoast_attr ()
#2 0x00000000005fb2ef in numeric_out ()
#3 0x000000000065b73f in FunctionCall1 ()
#4 0x000000000065c61b in OutputFunctionCall ()
#5 0x00000000005ff121 in record_out ()
#6 0x000000000065b73f in FunctionCall1 ()
#7 0x000000000065c61b in OutputFunctionCall ()
#8 0x00000000004495cc in printtup ()
#9 0x000000000051e6a3 in ExecutorRun ()
#10 0x00000000005b658a in PortalRunSelect ()
#11 0x00000000005b7af9 in PortalRun ()
#12 0x00000000005b2ddf in exec_simple_query ()
#13 0x00000000005b4423 in PostgresMain ()
#14 0x00000000005881e4 in ServerLoop ()
#15 0x000000000058a1e5 in PostmasterMain ()
#16 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x000000395d688ae9 in memcpy () from /lib64/libc.so.6
(gdb) bt
#0 0x000000395d688ae9 in memcpy () from /lib64/libc.so.6
#1 0x00000000006724b1 in MemoryContextStrdup ()
#2 0x00000000005d7069 in date_out ()
#3 0x000000000065b73f in FunctionCall1 ()
#4 0x000000000065c61b in OutputFunctionCall ()
#5 0x00000000005ff121 in record_out ()
#6 0x000000000065b73f in FunctionCall1 ()
#7 0x000000000065c61b in OutputFunctionCall ()
#8 0x00000000004495cc in printtup ()
#9 0x000000000051e6a3 in ExecutorRun ()
#10 0x00000000005b658a in PortalRunSelect ()
#11 0x00000000005b7af9 in PortalRun ()
#12 0x00000000005b2ddf in exec_simple_query ()
#13 0x00000000005b4423 in PostgresMain ()
#14 0x00000000005881e4 in ServerLoop ()
#15 0x000000000058a1e5 in PostmasterMain ()
#16 0x0000000000540cf8 in main ()
(gdb) cont
Continuing.
^C
Program received signal SIGINT, Interrupt.
0x00000000005395e6 in appendStringInfoChar ()
(gdb) call MemoryContextStats(TopMemoryContext)
$1 = 68
(gdb) cont
Continuing.
Program received signal SIGINT, Interrupt.
0x00000000005ff168 in record_out ()
(gdb) cont
Continuing.
Program received signal SIGINT, Interrupt.
0x00000000005ff168 in record_out ()
(gdb) ^C(gdb) Quit
(gdb) ^C(gdb) Quit
(gdb) quit
A debugging session is active.
Inferior 1 [process 31446] will be detached.
Quit anyway? (y or n) y
Detaching from program: /usr/local/pgsql/bin/postgres, process 31446
[root@00002-xxx-SGDB ~]#
On Sat, Nov 10, 2012 at 11:01 PM, Craig Ringer <craig@xxxxxxxxxxxxxxx> wrote:
Oh, I forgot to explain how to actually get the output.On 11/11/2012 08:54 AM, Craig Ringer wrote:
Now follow Tom's advice:
In gdb, call MemoryContextStats(TopMemoryContext) should produce some useful information on the process's stderr file.
stderr goes to the PostgreSQL log files, so you need to look in the Pg logs. These are in /var/lib/pgsql/data/pg_log or /var/lib/pgsql/[version]/data/pg_log on Red Hat / Fedora systems, and in /var/log/postgresql/ on Debian/Ubuntu systems.
You're looking for something like:
MessageContext: 8192 total in 1 blocks; 7120 free (1 chunks); 1072 used
Operator class cache: 8192 total in 1 blocks; 1680 free (0 chunks); 6512 used
smgr relation table: 24576 total in 2 blocks; 13920 free (4 chunks); 10656 used
TransactionAbortContext: 32768 total in 1 blocks; 32736 free (0 chunks); 32 used
Portal hash: 8192 total in 1 blocks; 1680 free (0 chunks); 6512 used
PortalMemory: 8192 total in 1 blocks; 8160 free (1 chunks); 32 used
Relcache by OID: 24576 total in 2 blocks; 13872 free (3 chunks); 10704 used
CacheMemoryContext: 817840 total in 20 blocks; 140840 free (3 chunks); 677000 used
pg_db_role_setting_databaseid_rol_index: 2048 total in 1 blocks; 528 free (0 chunks); 1520 used
pg_opclass_am_name_nsp_index: 3072 total in 2 blocks; 1272 free (2 chunks); 1800 used
... lots more ...
pg_database_oid_index: 3072 total in 2 blocks; 1656 free (3 chunks); 1416 used
pg_authid_rolname_index: 3072 total in 2 blocks; 1656 free (3 chunks); 1416 used
MdSmgr: 8192 total in 1 blocks; 8128 free (0 chunks); 64 used
tokenize file cxt: 0 total in 0 blocks; 0 free (0 chunks); 0 used
hba parser context: 7168 total in 3 blocks; 3760 free (4 chunks); 3408 used
LOCALLOCK hash: 8192 total in 1 blocks; 1680 free (0 chunks); 6512 used
Timezones: 83472 total in 2 blocks; 3744 free (0 chunks); 79728 used
ErrorContext: 8192 total in 1 blocks; 8160 free (3 chunks); 32 used
Copy and paste the entire block (including the bits I omitted from mine because it's just an example to show you what it looks like).
--
Craig Ringer
--
Reimer
47-3347-1724 47-9183-0547 msn: carlos.reimer@xxxxxxxxxxxxx
