Re: How to know transaction count in hour basic

Dear Team,

How this function works, it is not working it is throwing error message ,

[image: image.png]

Kindly check that, and revert back.

Regards,
Mallikarjunarao,
+91-8142923383.

On Thu, Oct 31, 2019 at 5:04 PM mallikarjun t <mallit333(at)gmail(dot)com> wrote:

> Dear Team,
>
> Thanks for your support. I will check.
>
>
> Regards,
> Mallikarjunarao,
> +91-8142923383.
>
> On Wed, Oct 30, 2019 at 8:59 PM Rui DeSousa <rui(at)crazybean(dot)net> wrote:
>
>> You need to capture the value at the starting and ending period that
>> you’re interested in and then calculate the delta.
>>
>>
>> I export all the stats tables out every minute and put them into history
>> table on a different system — then query any period of interest. Sorta
>> like Oracle’s stats pack.
>>
>> There are also monitoring tools that do this all for you already.
>>
>> i.e. This is the function I would use to get the information you’re
>> looking for:
>>
>> /*
>> Query Example:
>>
>> select period_start
>> , period_end
>> , to_char(xact_commit + xact_rollback, numeric_format(10, 0)) as
>> tran_cnt
>> , to_char(txid_cnt, numeric_format(10, 0)) as txid_cnt
>> , pg_size_pretty((blks_read + blks_hit) * 16 * 1024) as buf_read
>> , pg_size_pretty(blks_read * 16 * 1024) as fs_read
>> , to_char(blks_hit::numeric / (blks_read + blks_hit) * 100,
>> '999D9999%') as buf_pct
>> , to_char(temp_files, numeric_format(15, 0)) as temp_files
>> , pg_size_pretty(temp_bytes) as tmp_tbl
>> , to_char(tup_returned, numeric_format(15, 0)) as tup_returned
>> , to_char(tup_inserted, numeric_format(15, 0)) as tup_inserted
>> , to_char(tup_updated, numeric_format(15, 0)) as tup_updated
>> , to_char(tup_deleted, numeric_format(15, 0)) as tup_deleted
>> from get_database_stat(‘dynamo', '2018-06-26'::date, '2018-06-30'::date,
>> 60)
>> ;
>>
>> */
>>
>> create or replace function get_database_stat(_database name, _start_time
>> timestamp(0) with time zone, _end_time timestamp(0) with time zone,
>> _interval int default 1)
>> returns table (
>> period_start timestamp(0) with time zone,
>> period_end timestamp(0) with time zone,
>> xact_commit bigint,
>> xact_rollback bigint,
>> txid_cnt bigint,
>> blks_read bigint,
>> blks_hit bigint,
>> tup_returned bigint,
>> tup_fetched bigint,
>> tup_inserted bigint,
>> tup_updated bigint,
>> tup_deleted bigint,
>> conflicts bigint,
>> temp_files bigint,
>> temp_bytes bigint,
>> deadlocks bigint,
>> blk_read_time double precision,
>> blk_write_time double precision
>> ) as $$
>> declare
>> _offset_factor int;
>> begin
>> _offset_factor := (_interval * 60) - ((extract(epoch from
>> date_trunc('minutes', _start_time)))::int % (_interval * 60));
>>
>> return query
>> select lag(s.hist_stat_time) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time) as period_start
>> , s.hist_stat_time as period_end
>> , (s.xact_commit - lag(s.xact_commit) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as xact_commit
>> , (s.xact_rollback - lag(s.xact_rollback) over (partition by
>> s.datname, s.stats_reset order by s.hist_stat_time)) as xact_rollback
>> , s.xact_txid - lag(s.xact_txid) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time) as txid_cnt
>> , (s.blks_read - lag(s.blks_read) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as blks_read
>> , (s.blks_hit - lag(s.blks_hit) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as blks_hit
>> , (s.tup_returned - lag(s.tup_returned) over (partition by
>> s.datname, s.stats_reset order by s.hist_stat_time)) as tup_returned
>> , (s.tup_fetched - lag(s.tup_fetched) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as tup_fetched
>> , (s.tup_inserted - lag(s.tup_inserted) over (partition by
>> s.datname, s.stats_reset order by s.hist_stat_time)) as tup_inserted
>> , (s.tup_updated - lag(s.tup_updated) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as tup_updated
>> , (s.tup_deleted - lag(s.tup_deleted) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as tup_deleted
>> , (s.conflicts - lag(s.conflicts) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as conflicts
>> , (s.temp_files - lag(s.temp_files) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as temp_files
>> , (s.temp_bytes - lag(s.temp_bytes) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as temp_bytes
>> , (s.deadlocks - lag(s.deadlocks) over (partition by s.datname,
>> s.stats_reset order by s.hist_stat_time)) as deadlocks
>> , (s.blk_read_time - lag(s.blk_read_time) over (partition by
>> s.datname, s.stats_reset order by s.hist_stat_time)) as blk_read_time
>> , (s.blk_write_time - lag(s.blk_write_time) over (partition by
>> s.datname, s.stats_reset order by s.hist_stat_time)) as blk_write_time
>> from hist_stat_database s
>> where s.datname = _database
>> and s.hist_stat_time >= _start_time
>> and s.hist_stat_time <= _end_time
>> and ((extract(epoch from date_trunc('minutes',
>> s.hist_stat_time)))::int + _offset_factor) % (_interval * 60) = 0
>> order by s.hist_stat_time
>> offset 1
>> ;
>> end;
>> $$ language plpgsql
>> stable
>> ;
>>
>>
>>
>> On Oct 30, 2019, at 10:13 AM, mallikarjun t <mallit333(at)gmail(dot)com> wrote:
>>
>> Dear Team,
>>
>> How to check, how many transactions are committed in one hour?
>>
>> In database level pg_stat_database xact_commit column is there,this is
>> giving only count.
>>
>> How to get count for hour basis and minutes and seconds basis, how many
>> transactions are committed?
>>
>> *How to check?*
>>
>> *Regards,*
>> *Mallikarjunarao,*
>>
>> *+91-8142923383.*
>>
>>
>>