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PG-182: Added a new option for the query buffer overflow.

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This commit is contained in:
Ibrar Ahmed
2021-02-17 13:08:39 +00:00
parent 0c9c25fbd9
commit 6aa1b2e7b6
6 changed files with 61 additions and 43 deletions
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37
pg_stat_monitor.c
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@@ -1179,9 +1179,19 @@ pg_stat_monitor_internal(FunctionCallInfo fcinfo,
unsigned char *buf = pgss_qbuf[entry->key.bucket_id];
if(read_query(buf, queryid, query_txt) == 0)
{
len = read_query_buffer(entry->key.bucket_id, queryid, query_txt);
if (len != MAX_QUERY_BUFFER_BUCKET)
sprintf(query_txt, "%s", "pg_stat_monitor: query not found either in hash nor in temporay file");
switch(PGSM_OVERFLOW_TARGET)
{
case OVERFLOW_TARGET_NONE:
sprintf(query_txt, "%s", "query not found in query shared_buffer, no space left");
break;
case OVERFLOW_TARGET_DISK:
{
len = read_query_buffer(entry->key.bucket_id, queryid, query_txt);
if (len != MAX_QUERY_BUFFER_BUCKET)
sprintf(query_txt, "%s", "query not found either in hash nor in temporay file");
}
break;
}
}
}
if (query_txt)
@@ -2405,8 +2415,19 @@ store_query(int bucket_id, uint64 queryid, const char *query, uint64 query_len)
if (QUERY_BUFFER_OVERFLOW(buf_len, query_len))
{
dump_queries_buffer(bucket_id, buf, MAX_QUERY_BUFFER_BUCKET);
buf_len = sizeof (uint64);
switch(PGSM_OVERFLOW_TARGET)
{
case OVERFLOW_TARGET_NONE:
return;
case OVERFLOW_TARGET_DISK:
{
dump_queries_buffer(bucket_id, buf, MAX_QUERY_BUFFER_BUCKET);
buf_len = sizeof (uint64);
}
break;
default:
break;
}
}
memcpy(&buf[buf_len], &queryid, sizeof (uint64)); /* query id */
@@ -2554,11 +2575,7 @@ pg_stat_monitor_settings(PG_FUNCTION_ARGS)
MemoryContextSwitchTo(oldcontext);
#if PG_VERSION_NUM >= 130000
for(i = 0; i < 12; i++)
#else
for(i = 0; i < 11; i++)
#endif
for(i = 0; i < MAX_SETTINGS; i++)
{
Datum values[7];
bool nulls[7];