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Dissertaç ˜ao de Mestrado Mestrado em Engenharia Informática Jo ...

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B. APPENDIX - EVALUATION B.6. Performance Validation File 3<br />

# - Statistics Monitoring -<br />

#log_parser_stats = off<br />

#log_planner_stats = off<br />

#log_executor_stats = off<br />

#log_stat<strong>em</strong>ent_stats = off<br />

#-----------------------------------------------------------------------------<br />

# AUTOVACUUM PARAMETERS<br />

#-----------------------------------------------------------------------------<br />

#autovacuum = on # Enable autovacuum<br />

subprocess? ’on’<br />

# requires track_counts to<br />

also be on.<br />

#log_autovacuum_min_duration = -1 # -1 disables, 0 logs all<br />

actions and<br />

# their durations, > 0 logs<br />

only<br />

# actions running at least<br />

that time.<br />

#autovacuum_max_workers = 3 # max number of autovacuum<br />

subprocesses<br />

#autovacuum_naptime = 1min # time between autovacuum<br />

runs<br />

#autovacuum_vacuum_threshold = 50 # min number of row updates<br />

before<br />

# vacuum<br />

#autovacuum_analyze_threshold = 50 # min number of row updates<br />

before<br />

# analyze<br />

#autovacuum_vacuum_scale_factor = 0.2 # fraction of table size<br />

before vacuum<br />

#autovacuum_analyze_scale_factor = 0.1 # fraction of table size<br />

before analyze<br />

#autovacuum_freeze_max_age = 200000000 # maximum XID age before<br />

forced vacuum<br />

155

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