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authorPeter Eisentraut2023-12-30 10:11:26 +0000
committerPeter Eisentraut2023-12-30 10:43:57 +0000
commita740b213d4b4d3360ad0cac696e47e5ec0eb8864 (patch)
tree3a685f9b8eb1b6b7599ddb7926647f2ade4c5e59 /src
parent9d49837d7144e27ad8ea8918acb28f9872cb1585 (diff)
Add GUC backtrace_on_internal_error
When enabled (default off), this logs a backtrace anytime elog() or an equivalent ereport() for internal errors is called. This is not well covered by the existing backtrace_functions, because there are many equally-worded low-level errors in many functions. And if you find out where the error is, then you need to manually rewrite the elog() to ereport() to attach the errbacktrace(), which is annoying. Having a backtrace automatically on every elog() call could be very helpful during development for various kinds of common errors from palloc, syscache, node support, etc. Discussion: https://www.postgresql.org/message-id/flat/[email protected]
Diffstat (limited to 'src')
-rw-r--r--src/backend/utils/error/elog.c8
-rw-r--r--src/backend/utils/misc/guc_tables.c11
-rw-r--r--src/include/utils/guc.h1
3 files changed, 17 insertions, 3 deletions
diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 07a45597c4b..b2967184ca2 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -498,9 +498,11 @@ errfinish(const char *filename, int lineno, const char *funcname)
/* Collect backtrace, if enabled and we didn't already */
if (!edata->backtrace &&
- edata->funcname &&
- backtrace_functions &&
- matches_backtrace_functions(edata->funcname))
+ ((edata->funcname &&
+ backtrace_functions &&
+ matches_backtrace_functions(edata->funcname)) ||
+ (edata->sqlerrcode == ERRCODE_INTERNAL_ERROR &&
+ backtrace_on_internal_error)))
set_backtrace(edata, 2);
/*
diff --git a/src/backend/utils/misc/guc_tables.c b/src/backend/utils/misc/guc_tables.c
index 9f59440526f..3945a92dddd 100644
--- a/src/backend/utils/misc/guc_tables.c
+++ b/src/backend/utils/misc/guc_tables.c
@@ -527,6 +527,7 @@ int log_temp_files = -1;
double log_statement_sample_rate = 1.0;
double log_xact_sample_rate = 0;
char *backtrace_functions;
+bool backtrace_on_internal_error = false;
int temp_file_limit = -1;
@@ -813,6 +814,16 @@ StaticAssertDecl(lengthof(config_type_names) == (PGC_ENUM + 1),
struct config_bool ConfigureNamesBool[] =
{
{
+ {"backtrace_on_internal_error", PGC_SUSET, DEVELOPER_OPTIONS,
+ gettext_noop("Log backtrace for any error with error code XX000 (internal error)."),
+ NULL,
+ GUC_NOT_IN_SAMPLE
+ },
+ &backtrace_on_internal_error,
+ false,
+ NULL, NULL, NULL
+ },
+ {
{"enable_seqscan", PGC_USERSET, QUERY_TUNING_METHOD,
gettext_noop("Enables the planner's use of sequential-scan plans."),
NULL,
diff --git a/src/include/utils/guc.h b/src/include/utils/guc.h
index 49ee046cf0f..631c09c16b2 100644
--- a/src/include/utils/guc.h
+++ b/src/include/utils/guc.h
@@ -266,6 +266,7 @@ extern PGDLLIMPORT int log_temp_files;
extern PGDLLIMPORT double log_statement_sample_rate;
extern PGDLLIMPORT double log_xact_sample_rate;
extern PGDLLIMPORT char *backtrace_functions;
+extern PGDLLIMPORT bool backtrace_on_internal_error;
extern PGDLLIMPORT int temp_file_limit;