Questions tagged [autovacuum]

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108 views

PostgreSQL autovacuum ignoring “inactive” tables resulting in “transaction id wraparound”

I have a PostgreSQL database with a lot of tables (currently 93k) and I'm seeing issues with transaction id age threatening wraparound, because autovacuum is not getting triggered for clean tables ...
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0answers
539 views

Autovacuum gets exclusive lock and replayed in the slave and lead to system fault

I had trouble in my environment which is related to autovacuum and now I think I understand how this occurs. However, this is kind of a rare issue and so I want to get some advice regarding this issue....
2
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0answers
529 views

Postgresql 9.6 autovacuum blocks all update operations

I have a table with following definition: CREATE TABLE public.json_stream_packet_filter ( stream_packet_id bigint NOT NULL, filter_data jsonb, CONSTRAINT json_stream_packet_filter_pkey PRIMARY ...
2
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0answers
283 views

On PostgreSQL 9.5, does partitioning a table prevent autovacuum from automatically running ANALYZE?

I'm trying to grasp the following sentence from https://www.postgresql.org/docs/9.5/static/sql-analyze.html The autovacuum daemon, however, will only consider inserts or updates on the parent table ...
1
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1answer
945 views

When exactly does pg_stat_all_tables.last_autovacuum get updated?

I'm looking into issues with our autovacuum settings and trying to understand last_autoanalyze and last_autovacuum from the pg_stat_all_tables. I understand autovacuum to work in an incremental way, ...
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0answers
153 views

Autovacuum in Postgresql 9.5 database

I am trying to set up autovacuum in my postgresql 9.5 database, but table stats shows me no evidence of that. In postgresql.conf, the autovacuum is already enabled: autovacuum = on In settings, ...
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0answers
52 views

Postgresql - Auto vacuum is disables in conf file, but still everyday its running

Im using Postgresql 9.2. I have disabled auto vacuum in Conf, but still, I can see this auto vacuum is running on few tables every day. Can anyone help me find out why its running?
1
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269 views

autovacuum daemon considers pg_largeobject table?

I have a table which is having oid column and few oid column's data might be frequently modified from my application. I thought, it would rewrite the data and replace with new data (basically, thought ...
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0answers
50 views

Could auto_analyze cause inconsistent (and bad) query plans?

I have a simple table which stores metadata about users in an hstore column. This table has ~1.1M rows. Table "public.stitcher_participant" Column | Type ...
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15 views

PostgreSQL managed by AWS RDS - rdsadmin maxusedtransaction ID not shrinking

We are using AWS RDS Postgres. We reached the 200 million limit on one of the DB and triggered VACUUM FREEZE which took down the instance for roughly 40mins however the XID didn't shrink at all. We ...
0
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1answer
34 views

Autovacuum is not running even after configuring it on

I am using aurora-postgresql version 9.6.8. and I have one main instance , one writer and one reader replica. I am looking for below information: How I can check on a particular instance when ...
0
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1answer
12 views

Postgres 9.6.6 on Ubuntu 16.04, lots of errors

We're running perfsonar on a group of our servers, and while doing some maintenance work found that we get giant logfiles under /var/log/postgresql table bloat on the database of the perfsonar ...
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60 views

Postgres TX Wraparound - confused

i am running postgres on aws and trying to get my head around the "tx wraparound topic". i executed the following steps to "play" around take snaptshot of production database (here "our_main_db") ...
0
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1answer
183 views

Postgres - autovacuum on several big tables

I have an issue with autovacuum - I have several big tables (over 10 million records) which are updated very frequently (500 updates per second). Everything works OK until bloat happen :) As I can ...
0
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1answer
139 views

What does pg_stat_activity.xact_start mean for autovacuum threads?

If I see something like: db=> SELECT datname,pid,state, (now() - query_start)::interval, query FROM pg_stat_activity where state != 'idle' and query like 'autovacuum%'; datname | pid | state | ...
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292 views

autovacuum analyze paralyzing tables

On some tables, an autovacuum: VACUUM ANALYZE public.some_table process will run for 30 min to as long as 10 hours. During this time, updates to the table in question are often locked for 10+ minutes. ...
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0answers
79 views

How to make sure vacuum is happening in postgres sql db

I have created a table with two columns and created index for the first column. Then inserted 2 million data using generate series function for first column (2nd column is having null). And executed ...
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691 views

autovacuum launcher process, but no autovacuum workers

Debian Squeeze (yeah, I know), postgresql 9.1. Two similar db servers, one master one shard. postgresql.conf identical between the two besides small memory footprint config differences - all vacuum/...