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Re: increasing the default WAL segment size

Beena Emerson <memissemerson@gmail.com>

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From: Beena Emerson <memissemerson@gmail.com>
To: tushar <tushar.ahuja@enterprisedb.com>, Prabhat Sahu <prabhat.sahu@enterprisedb.com>
Cc: Ashutosh Sharma <ashu.coek88@gmail.com>, Jim Nasby <Jim.Nasby@bluetreble.com>, Kuntal Ghosh <kuntalghosh.2007@gmail.com>, Andres Freund <andres@anarazel.de>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2017-03-14T05:44:09Z
Lists: pgsql-hackers

Attachments

Hello,

Attached is the updated patch. It fixes the issues and also updates few
code comments.

On Fri, Mar 10, 2017 at 1:09 PM, tushar <tushar.ahuja@enterprisedb.com>
wrote:
>
>
> 1)at the time of initdb, we have set - "--wal-segsize 4"  ,so all the WAL
> file size should be 4 MB each  but in the postgresql.conf file , it is
> mentioned
>
> #wal_keep_segments = 0          # in logfile segments,* 16MB each*; 0
> disables
>

> so the comment  (16MB ) mentioned against parameter 'wal_keep_segments'
> looks wrong , either we should remove this or modify it .
>

Removed.


>
> 2)Getting "Aborted (core dumped)"  error at the time of running
> pg_basebackup  ,
> *(this issue is only coming on Linux32 ,not on Linux64) * we have  double
> check to confirm it .
>

 Can you please check with the new patch?

-- 
Thank you,

Beena Emerson

EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Make WAL segment size configurable at initdb time.

  2. Perform only one ReadControlFile() during startup.

  3. Introduce BYTES unit for GUCs.

  4. Remove useless duplicate inclusions of system header files.

  5. Refactor other replication commands to use DestRemoteSimple.

  6. Add a SHOW command to the replication command language.

  7. Add a new DestReceiver for printing tuples without catalog access.

  8. Support fls().

  9. Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also

  10. Commit the reasonably uncontroversial parts of J.R. Nield's PITR patch, to

  11. XLOG (also known as WAL -:)) Bootstrap/Startup/Shutdown.

  12. Transaction log manager core code.