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Tom Lane 7b5ef8f2d0 Limit the verbosity of memory context statistics dumps. ... We had a report from Stefan Kaltenbrunner of a case in which postmaster log files overran available disk space because multiple backends spewed enormous context stats dumps upon hitting an out-of-memory condition. Given the lack of similar reports, this isn't a common problem, but it still seems worth doing something about. However, we don't want to just blindly truncate the output, because that might prevent diagnosis of OOM problems. What seems like a workable compromise is to limit the dump to 100 child contexts per parent, and summarize the space used within any additional child contexts. That should help because practical cases where the dump gets long will typically be huge numbers of siblings under the same parent context; while the additional debugging value from seeing details about individual siblings beyond 100 will not be large, we hope. Anyway it doesn't take much code or memory space to do this, so let's try it like this and see how things go. Since the summarization mechanism requires passing totals back up anyway, I took the opportunity to add a "grand total" line to the end of the printout.		10 years ago
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.gitignore	…
acl.h	pgindent run for 9.5	11 years ago
aclchk_internal.h	pgindent run for 9.5	11 years ago
array.h	Support "expanded" objects, particularly arrays, for better performance.	11 years ago
arrayaccess.h	Rely on inline functions even if that causes warnings in older compilers.	11 years ago
ascii.h	Update copyright for 2015	11 years ago
attoptcache.h	Update copyright for 2015	11 years ago
builtins.h	Plug RLS related information leak in pg_stats view.	11 years ago
bytea.h	Update copyright for 2015	11 years ago
cash.h	…
catcache.h	Use FLEXIBLE_ARRAY_MEMBER in a bunch more places.	11 years ago
combocid.h	Create an infrastructure for parallel computation in PostgreSQL.	11 years ago
date.h	Define integer limits independently from the system definitions.	11 years ago
datetime.h	Tweak __attribute__-wrapping macros for better pgindent results.	11 years ago
datum.h	Support "expanded" objects, particularly arrays, for better performance.	11 years ago
dynahash.h	Update copyright for 2015	11 years ago
dynamic_loader.h	Update copyright for 2015	11 years ago
elog.h	Fix obsolete comment regarding NOTICE message level.	11 years ago
evtcache.h	Update copyright for 2015	11 years ago
expandeddatum.h	Support "expanded" objects, particularly arrays, for better performance.	11 years ago
fmgrtab.h	Update copyright for 2015	11 years ago
formatting.h	Update copyright for 2015	11 years ago
geo_decls.h	Allow GiST distance function to return merely a lower-bound.	11 years ago
guc.h	Add an optional missing_ok argument to SQL function current_setting().	11 years ago
guc_tables.h	pgindent run for 9.5	11 years ago
help_config.h	Tweak __attribute__-wrapping macros for better pgindent results.	11 years ago
hsearch.h	Update copyright for 2015	11 years ago
inet.h	Add index-only scan support to inet GiST opclass.	11 years ago
int8.h	Update copyright for 2015	11 years ago
inval.h	Update copyright for 2015	11 years ago
json.h	Update copyright for 2015	11 years ago
jsonapi.h	Support JSON negative array subscripts everywhere	11 years ago
jsonb.h	Rename jsonb_replace to jsonb_set and allow it to add new values	11 years ago
logtape.h	Update copyright for 2015	11 years ago
lsyscache.h	Redesign tablesample method API, and do extensive code review.	11 years ago
memdebug.h	Update copyright for 2015	11 years ago
memutils.h	Limit the verbosity of memory context statistics dumps.	10 years ago
nabstime.h	Update copyright for 2015	11 years ago
numeric.h	Update copyright for 2015	11 years ago
palloc.h	Rely on inline functions even if that causes warnings in older compilers.	11 years ago
pg_crc.h	pgindent run for 9.5	11 years ago
pg_locale.h	Revoke support for strxfrm() that write past the specified array length.	11 years ago
pg_lsn.h	Update copyright for 2015	11 years ago
pg_rusage.h	Update copyright for 2015	11 years ago
plancache.h	pgindent run for 9.5	11 years ago
portal.h	Update copyright for 2015	11 years ago
ps_status.h	…
rangetypes.h	Move strategy numbers to include/access/stratnum.h	11 years ago
rel.h	Fix more typos in comments.	11 years ago
relcache.h	Fix the logic for putting relations into the relcache init file.	11 years ago
relfilenodemap.h	Update copyright for 2015	11 years ago
relmapper.h	Use FLEXIBLE_ARRAY_MEMBER in a bunch more places.	11 years ago
reltrigger.h	Update copyright for 2015	11 years ago
resowner.h	Update copyright for 2015	11 years ago
resowner_private.h	Update copyright for 2015	11 years ago
rls.h	pgindent run for 9.5	11 years ago
ruleutils.h	pgindent run for 9.5	11 years ago
sampling.h	pgindent run for 9.5	11 years ago
selfuncs.h	pgindent run for 9.5	11 years ago
snapmgr.h	Create an infrastructure for parallel computation in PostgreSQL.	11 years ago
snapshot.h	pgindent run for 9.5	11 years ago
sortsupport.h	Rely on inline functions even if that causes warnings in older compilers.	11 years ago
spccache.h	Update copyright for 2015	11 years ago
syscache.h	Redesign tablesample method API, and do extensive code review.	11 years ago
timeout.h	Update copyright for 2015	11 years ago
timestamp.h	Add transform functions for AT TIME ZONE.	11 years ago
tqual.h	Add opaque declaration of HTAB to tqual.h.	11 years ago
tuplesort.h	Update copyright for 2015	11 years ago
tuplestore.h	Update copyright for 2015	11 years ago
typcache.h	Use the typcache to cache constraints for domain types.	11 years ago
tzparser.h	Update copyright for 2015	11 years ago
uuid.h	Update copyright for 2015	11 years ago
varbit.h	Use FLEXIBLE_ARRAY_MEMBER in a bunch more places.	11 years ago
xml.h	Update copyright for 2015	11 years ago