Questions tagged [autovacuum]

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21 questions with no upvoted or accepted answers
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180 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 ...
3
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0answers
334 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 ...
2
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0answers
242 views

How do I fix multixact wraparound after it has already occurred?

I have a database which has a single table for which MultiXact wraparound has already occurred. Neither manual vacuums nor automatic vacuums are able to fix this condition. Manual vacuums fail almost ...
2
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0answers
788 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
664 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 ...
1
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1answer
2k 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, ...
1
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0answers
67 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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0answers
353 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 ...
1
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0answers
52 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 ...
0
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1answer
41 views

Postgres Performance degradation

I have a Postgres 9.6 database and after some time (15 h), database performance starts to decrease dramatically, to the point where we get client side timeouts due to a very slow response from the ...
0
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0answers
20 views

After upgrading from Postgres 9.2.4 to Postgres 10.5 query is 170x slower

We recently upgraded our Postgres database from 9.2 to 10.5. We noticed a somewhat odd behavior with a query that under the same circumstances became 170x slower. The query does a join between 2 ...
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0answers
17 views

Why isn't autovaccum running/completing?

My PostgreSQL instance (AWS Aurora) isn't autovacuuming. Or it is, but it is somehow being interrupted or stopped. I'm not canceling any autovacuum queries (though I suppose AWS itself could be). The ...
0
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1answer
26 views

How can I find the cause of pg_catalog.pg_attribute constantly being vacuumed?

autovacuum seems to constantly run against pg_catalog.pg_attribute for the past week+. This seems pretty odd since we aren't doing constant table changes. How can I understand why it's doing this and ...
0
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0answers
31 views

posgresql 11 can not start autovacuum

I want to use autovacuum for vacuum and analyze in PostgreSQL 11.5. I am trying to enable it on a dev server but I can't get it started. According to documentation : autovacuum = on ...
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0answers
84 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
57 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
25 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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0answers
136 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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0answers
436 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. ...
0
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0answers
95 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 ...
0
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0answers
756 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/...