Help with postgresql memory issue - Mailing list pgsql-general

Hello All,

I'm new to postgres and it seems my server is unable to fork new
connections.

Here is the log:

LOG:  could not fork new process for connection: Not enough space
LOG:  could not fork new process for connection: Not enough space
TopMemoryContext: 84784 total in 8 blocks; 5584 free (10 chunks);
79200 used
   Prepared Queries: 8192 total in 1 blocks; 1800 free (0 chunks);
6392 used
   TopTransactionContext: 8192 total in 1 blocks; 7856 free (0
chunks); 336 used
   Record information cache: 8192 total in 1 blocks; 1800 free (0
chunks); 6392 used
   MessageContext: 8192 total in 1 blocks; 7128 free (0 chunks); 1064
used
   smgr relation table: 8192 total in 1 blocks; 3840 free (0 chunks);
4352 used
   TransactionAbortContext: 32768 total in 1 blocks; 32752 free (0
chunks); 16 used
   Portal hash: 8192 total in 1 blocks; 3912 free (0 chunks); 4280 used
   PortalMemory: 8192 total in 1 blocks; 8040 free (0 chunks); 152 used
     PortalHeapMemory: 1024 total in 1 blocks; 976 free (0 chunks); 48
used
   Relcache by OID: 8192 total in 1 blocks; 3376 free (0 chunks); 4816
used
   CacheMemoryContext: 405328 total in 19 blocks; 70888 free (1
chunks); 334440 used
     unnamed prepared statement: 24576 total in 2 blocks; 7912 free (1
chunks); 16664 used
     CachedPlan: 1024 total in 1 blocks; 904 free (0 chunks); 120 used
     CachedPlanSource: 1024 total in 1 blocks; 840 free (0 chunks);
184 used
     pg_ts_dict_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_aggregate_fnoid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_language_name_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_statistic_relid_att_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_ts_dict_dictname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_namespace_nspname_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
     pg_opfamily_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_opclass_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_ts_parser_prsname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_amop_fam_strat_index: 1024 total in 1 blocks; 128 free (0
chunks); 896 used
     pg_opclass_am_name_nsp_index: 1024 total in 1 blocks; 192 free (0
chunks); 832 used
     pg_trigger_tgrelid_tgname_index: 1024 total in 1 blocks; 240 free
(0 chunks); 784 used
     pg_cast_source_target_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_auth_members_role_member_index: 1024 total in 1 blocks; 280
free (0 chunks); 744 used
     pg_attribute_relid_attnum_index: 1024 total in 1 blocks; 280 free
(0 chunks); 744 used
     pg_ts_config_cfgname_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_authid_oid_index: 1024 total in 1 blocks; 304 free (0 chunks);
720 used
     pg_ts_config_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_conversion_default_index: 1024 total in 1 blocks; 128 free (0
chunks); 896 used
     pg_language_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_enum_oid_index: 1024 total in 1 blocks; 344 free (0 chunks);
680 used
     pg_proc_proname_args_nsp_index: 1024 total in 1 blocks; 192 free
(0 chunks); 832 used
     pg_ts_parser_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_database_oid_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
     pg_conversion_name_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_class_relname_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_attribute_relid_attnam_index: 1024 total in 1 blocks; 280 free
(0 chunks); 744 used
     pg_class_oid_index: 1024 total in 1 blocks; 344 free (0 chunks);
680 used
     pg_amproc_fam_proc_index: 1024 total in 1 blocks; 128 free (0
chunks); 896 used
     pg_operator_oprname_l_r_n_index: 1024 total in 1 blocks; 128 free
(0 chunks); 896 used
     pg_index_indexrelid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_type_oid_index: 1024 total in 1 blocks; 304 free (0 chunks);
720 used
     pg_rewrite_rel_rulename_index: 1024 total in 1 blocks; 280 free
(0 chunks); 744 used
     pg_authid_rolname_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
     pg_auth_members_member_role_index: 1024 total in 1 blocks; 280
free (0 chunks); 744 used
     pg_enum_typid_label_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_constraint_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_conversion_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_ts_template_tmplname_index: 1024 total in 1 blocks; 280 free
(0 chunks); 744 used
     pg_ts_config_map_index: 1024 total in 1 blocks; 192 free (0
chunks); 832 used
     pg_namespace_oid_index: 1024 total in 1 blocks; 304 free (0
chunks); 720 used
     pg_type_typname_nsp_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_operator_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
     pg_amop_opr_fam_index: 1024 total in 1 blocks; 280 free (0
chunks); 744 used
     pg_proc_oid_index: 1024 total in 1 blocks; 344 free (0 chunks);
680 used
     pg_opfamily_am_name_nsp_index: 1024 total in 1 blocks; 192 free
(0 chunks); 832 used
     pg_ts_template_oid_index: 1024 total in 1 blocks; 344 free (0
chunks); 680 used
   MdSmgr: 0 total in 0 blocks; 0 free (0 chunks); 0 used
   LOCALLOCK hash: 8192 total in 1 blocks; 3912 free (0 chunks); 4280
used
   Timezones: 48616 total in 2 blocks; 5968 free (0 chunks); 42648 used
   ErrorContext: 8192 total in 1 blocks; 8176 free (3 chunks); 16 used
ERROR:  out of memory

and the memory area from the config file:

#------------------------------------------------------------------------------
# RESOURCE USAGE (except WAL)
#------------------------------------------------------------------------------

# - Memory -

shared_buffers = 128MB            # min 128kB or max_connections*16kB
                    # (change requires restart)
temp_buffers = 16MB            # min 800kB
#max_prepared_transactions = 5        # can be 0 or more
                    # (change requires restart)
# Note:  Increasing max_prepared_transactions costs ~600 bytes of
shared memory
# per transaction slot, plus lock space (see max_locks_per_transaction).
#work_mem = 1MB                # min 64kB
work_mem = 16MB
maintenance_work_mem = 300MB        # min 1MB
#max_stack_depth = 2MB            # min 100kB

# - Free Space Map -

max_fsm_pages = 400000            # min max_fsm_relations*16, 6 bytes each
                    # (change requires restart)
#max_fsm_relations = 1000        # min 100, ~70 bytes each
                    # (change requires restart)

# - Kernel Resource Usage -

#max_files_per_process = 1000        # min 25
                    # (change requires restart)
#shared_preload_libraries = ''        # (change requires restart)

# - Cost-Based Vacuum Delay -

#vacuum_cost_delay = 0            # 0-1000 milliseconds
#vacuum_cost_page_hit = 1        # 0-10000 credits
#vacuum_cost_page_miss = 10        # 0-10000 credits
#vacuum_cost_page_dirty = 20        # 0-10000 credits
#vacuum_cost_limit = 200        # 1-10000 credits

# - Background Writer -

#bgwriter_delay = 200ms            # 10-10000ms between rounds
#bgwriter_lru_maxpages = 100        # 0-1000 max buffers written/round
#bgwriter_lru_multiplier = 2.0        # 0-10.0 multipler on buffers scanned/
round


Is there anything I can do to ensure I'm getting the most out of the
1GB of RAM on my server?

Thanks,
Brooks L.