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PG-165: Recycle expired buckets.

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Ibrar Ahmed
2021-01-14 12:58:42 +00:00
parent 51522ca6d9
commit 0e8f4c489c
2 changed files with 16 additions and 2 deletions
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15
pg_stat_monitor.c
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@@ -1104,6 +1104,18 @@ pg_stat_monitor_internal(FunctionCallInfo fcinfo,
Counters tmp;
double stddev;
int64 queryid = entry->key.queryid;
struct tm tm;
time_t bucket_t,current_t;
double diff_t;
memset(&tm, 0, sizeof(tm));
strptime(pgss->bucket_start_time[entry->key.bucket_id], "%Y-%m-%d %H:%M:%S", &tm);
bucket_t = mktime(&tm);
time(&current_t);
diff_t = difftime(current_t, bucket_t);
if (diff_t > (PGSM_BUCKET_TIME * PGSM_MAX_BUCKETS))
continue;
memset(values, 0, sizeof(values));
memset(nulls, 0, sizeof(nulls));
@@ -1273,7 +1285,8 @@ get_next_wbucket(pgssSharedState *pgss)
sec = lt->tm_sec - (lt->tm_sec % PGSM_BUCKET_TIME);
if (sec < 0)
sec = 0;
snprintf(pgss->bucket_start_time[bucket_id], sizeof(pgss->bucket_start_time[bucket_id]), "%02d-%02d-%04d %02d:%02d:%02d", lt->tm_mday, lt->tm_mon + 1, lt->tm_year + 1900, lt->tm_hour, lt->tm_min, sec);
snprintf(pgss->bucket_start_time[bucket_id], sizeof(pgss->bucket_start_time[bucket_id]),
"%04d-%02d-%02d %02d:%02d:%02d", lt->tm_year + 1900, lt->tm_mon + 1, lt->tm_mday, lt->tm_hour, lt->tm_min, sec);
return bucket_id;
}
return pgss->current_wbucket;