Received: from malur.postgresql.org ([217.196.149.56]) by arkaria.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qgmIe-00HK7Y-4N for pgsql-hackers@arkaria.postgresql.org; Thu, 14 Sep 2023 13:22:28 +0000 Received: from localhost ([127.0.0.1] helo=malur.postgresql.org) by malur.postgresql.org with esmtp (Exim 4.94.2) (envelope-from ) id 1qgmIc-008RKZ-JV for pgsql-hackers@arkaria.postgresql.org; Thu, 14 Sep 2023 13:22:26 +0000 Received: from makus.postgresql.org ([2001:4800:3e1:1::229]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qgmIc-008RKI-8o for pgsql-hackers@lists.postgresql.org; Thu, 14 Sep 2023 13:22:26 +0000 Received: from out4-smtp.messagingengine.com ([66.111.4.28]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1qgmIY-004Wmh-OZ for pgsql-hackers@postgresql.org; Thu, 14 Sep 2023 13:22:24 +0000 Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailout.nyi.internal (Postfix) with ESMTP id C28C15C00B0; Thu, 14 Sep 2023 09:22:21 -0400 (EDT) Received: from imap49 ([10.202.2.99]) by compute6.internal (MEProxy); Thu, 14 Sep 2023 09:22:21 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eulerto.com; h= cc:content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1694697741; x=1694784141; bh=MX w+2NBytuTBaQCtGAvmBmXjY56AnSUQSJuwTEy0qa8=; b=oLio3kTtscoRwaYBht 4/Lgc5+1CzZbSyKxHlDPiuN+MX9i+1vQPJoxRWpmyycJRA8L7gCrm2N3yCtoU3Sv 8dQuYJsGtWz1O21zV8YVNvgYOF3qnX0A5pclQuxQfPMAtM6KItAI/Q8FXMeiu+lY /ilgNEWxxHWP+F/Ogv3bmtqySgLCsVw++FkTpiNx2GufRLZh5cfyg1KkZO7iUH6i NtaSsy/4BCQg+k2ThSstTR7BkUC5fU9vBP8BYKDwaNwBMetFTWpYh8B7oY+JT6iH /W77yVXsAGc8ZblPm+J6R+YA/eKHhBCUuhXlwLhN0+iwprPy2fieSzdVChybocTL f7vQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm2; t=1694697741; x=1694784141; bh=MXw+2NBytuTBa QCtGAvmBmXjY56AnSUQSJuwTEy0qa8=; b=YhPmwCezXATIZvhwkTlidnZ3Byg3S PTeiOhcOvcD4UY45l/9ngMwlb6MiuA//H+ZUmvc7z3POqA8BM/KLq42p/xnI1xMo BIzUZBkRYOZHpt7qbwbdGK7DOQWg1dzlL+eqD7wwKYP2wxcDAJF1Didy+Z7WsZWO tlCmVgYy0lOt0eIYpA2LC6+0qZZv3SCFlggBClUlFaDu/R9StU5QghGBxnvBIlli zOHK1SigTMAHL1ytr7G94vRDx8Rx+DsG/mJaLRhFlAjmlzpcziQoxbLfBAIcParZ VWRxC7ngsnYsY6DfT9QWkUweBNBxC0DD2JXoj50HTjeESDgFfTvfW2gLQ== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedviedrudejtddgiedvucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucenucfjughrpefofgggkfgjfhffhffvufgtsegrtd erreerredtnecuhfhrohhmpedfgfhulhgvrhcuvfgrvhgvihhrrgdfuceovghulhgvrhes vghulhgvrhhtohdrtghomheqnecuggftrfgrthhtvghrnheptdejffeiueeigeegheeiue dtveelteetjeeitdfgheehfeeukeevffetudejhfffnecuffhomhgrihhnpehpohhsthhg rhgvshhqlhdrohhrghdpvghnthgvrhhprhhishgvuggsrdgtohhmnecuvehluhhsthgvrh fuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepvghulhgvrhesvghulhgvrhht ohdrtghomh X-ME-Proxy: Feedback-ID: i0c21471d:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 4C3E015A0091; Thu, 14 Sep 2023 09:22:21 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-745-g95dd7bea33-fm-20230905.001-g95dd7bea Mime-Version: 1.0 Message-Id: <76e9f281-a70a-4c11-b2f8-d83446aa70aa@app.fastmail.com> In-Reply-To: References: Date: Thu, 14 Sep 2023 10:21:59 -0300 From: "Euler Taveira" To: "Andy Fan" , pgsql-hackers Subject: Re: Is it possible to change wal_level online Content-Type: multipart/alternative; boundary=87e2fcf111e341dd9582863d2a38b90d List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --87e2fcf111e341dd9582863d2a38b90d Content-Type: text/plain On Thu, Sep 14, 2023, at 7:05 AM, Andy Fan wrote: > Currently it is complained that wal_level changes require an instance > restart, I'm not familiar with this stuff so far and I didn't get any good > information from searching the email archive. So I want to gather > some feedbacks from experts to see if it is possible and if not, why > it would be the key blocker for this. Basically I agree that changing > the wal_level online will be a good experience for users. > This topic was already discussed. See this thread [1] that was requesting to change the wal_level default value. There might be other threads but I didn't try hard to find them. [1] https://www.postgresql.org/message-id/20200608213215.mgk3cctlzvfuaqm6%40alap3.anarazel.de -- Euler Taveira EDB https://www.enterprisedb.com/ --87e2fcf111e341dd9582863d2a38b90d Content-Type: text/html Content-Transfer-Encoding: quoted-printable
On Thu, Sep 14,= 2023, at 7:05 AM, Andy Fan wrote:
Currently it is complained that= wal_level changes require an instance
restart,  I'm = not familiar with this stuff so far and I didn't get any good
information from searching the email archive.  So I want t= o gather 
some feedbacks from experts to  see if= it is possible and if not, why
it would be the key blocke= r for this.  Basically I agree that changing 
the wal_level  online will be a good experience for users.&= nbsp;


This topic was already discussed. See this thread [1] that was r= equesting to
change the wal_level default value. There mig= ht be other threads but I didn't
try hard to find them.




--
Euler Taveira

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