Help with postgresql memory issue

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.