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 1sIAKW-00DbHq-Jm for pgsql-admin@arkaria.postgresql.org; Fri, 14 Jun 2024 17:03:12 +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 1sIAKT-003lnn-SY for pgsql-admin@arkaria.postgresql.org; Fri, 14 Jun 2024 17:03:10 +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 1sIAKT-003lnB-Gb for pgsql-admin@lists.postgresql.org; Fri, 14 Jun 2024 17:03:10 +0000 Received: from mail-qk1-x72d.google.com ([2607:f8b0:4864:20::72d]) by makus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from ) id 1sIAKR-001JGR-Si for pgsql-admin@lists.postgresql.org; Fri, 14 Jun 2024 17:03:09 +0000 Received: by mail-qk1-x72d.google.com with SMTP id af79cd13be357-797a7f9b552so153652285a.0 for ; Fri, 14 Jun 2024 10:03:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=aweber.com; s=2018090500; t=1718384586; x=1718989386; darn=lists.postgresql.org; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :from:to:cc:subject:date:message-id:reply-to; bh=Zjzpn/oJzYQWe8CywOeF/f0wOXIRXEj8/azLPqyCYL4=; b=Vz/GNY65mPIGYAtc7XGBapZ4KhfEksVt1Y+NXObenoYwnlNMPFFpaDTgdbgLaYNX9w 0ErAdiONT6wsOuxDTuaaO9vSIU+DzjG6UyGZ/1+Xkhq1GadywSIDLzOcBI3gBoChB2eh JdMSFxcB2932ybbS8tbjKeZ1Q/ES3pZIDRL2UEUvB0d+y+CyHDGWG5fjX3Hyt5cPhgN/ ruW+toEafhe6461i4z2z/khXI7TMcPoLzE4lQ1pbelwPbWFRXnIkYPiBUWmUVBj77YH8 FdaML658xeb6/IFUD9Lma2KVmkVpazGF2SF93a8e08o/+CWAJlYSUxGk9/FgT4HlBjpN 2r9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718384586; x=1718989386; h=message-id:in-reply-to:to:references:date:subject:mime-version:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=Zjzpn/oJzYQWe8CywOeF/f0wOXIRXEj8/azLPqyCYL4=; b=Uy2w/UCxpdQnQDFg9KWY5WhjHpwkzGGNp+uVflPnNfD8vAivhyenFlWupHnMJTwY4E rnv/zp8Q/S2DzrTK+fN21ivqzgmOC68R4Q2CIiuCG+g2d0euX4lUXsFW/FCapsxqJJyp kNxXrScLXPfUPXDlA3wuxLZfcMZSIDJGmmPRT4y/19euwx3rM7hJBompQsv3u7znr0JZ UxF7dOrigjnNHc93pJuBw2H8AXUizdu82/axxPbgVE1olyhpWJeBJuv3iT47Zd04BdqL Gqic0snJ8Zd7awBudAObQ5pK9e6eqGd4D+23KQMO6bXebjezVfMMZU6kfuAkxntVGJoc tSXw== X-Gm-Message-State: AOJu0Yx9blfhm57XCgv+Y5s3d7mL/6neWugBcK33EEnuCM8ScyNBQ69e zwdZM+UH2ZfQUfJ/ZWGeGt9+++c1gHEDoRZTbc/AN97QqYkmXkmGmCTRoaA6JJvuHnu43NhP55b NKfo= X-Google-Smtp-Source: AGHT+IE2rapCvSue+KSQWjxLBaSsz2qJptrnmbkItXojnS7mQyr/eLFfLwULsNcHSWsyUM/fekQhqg== X-Received: by 2002:a05:620a:45a7:b0:797:e7dd:96f with SMTP id af79cd13be357-798d258ddaamr364918485a.57.1718384585618; Fri, 14 Jun 2024 10:03:05 -0700 (PDT) Received: from smtpclient.apple ([172.59.218.20]) by smtp.gmail.com with ESMTPSA id af79cd13be357-798aacb697csm162082385a.21.2024.06.14.10.03.04 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 14 Jun 2024 10:03:05 -0700 (PDT) From: Chris Hoover Content-Type: multipart/alternative; boundary="Apple-Mail=_E4606A0C-23AA-4CFE-A812-653C3D615776" Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3774.500.171.1.1\)) Subject: Re: Outage caused by query in IPC:MessageQueueReceive wait???? Date: Fri, 14 Jun 2024 13:02:54 -0400 References: To: pgsql-admin@lists.postgresql.org In-Reply-To: Message-Id: <33F68D47-1D2D-4DB8-B753-BE83A3FA653E@aweber.com> X-Mailer: Apple Mail (2.3774.500.171.1.1) List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --Apple-Mail=_E4606A0C-23AA-4CFE-A812-653C3D615776 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=utf-8 Forgot to mention, this is on PG 16.1 Thanks, Chris Hoover Senior DBA AWeber.com Cell: (803) 528-2269 Email: chrish@aweber.com > On Jun 14, 2024, at 12:52=E2=80=AFPM, Chris Hoover = wrote: >=20 > All, >=20 > We had an outage today that appears to have been caused by a query in = "IPC:MessageQueueReceive=E2=80=9D wait state blocking another query from = completing a truncate. =20 >=20 > Is there anyway to figure out what exactly it was waiting on other = than an IPC message? I=E2=80=99m trying to get to the true root cause = of our outage. >=20 > Thanks, >=20 >=20 > Chris Hoover > Senior DBA > AWeber.com > Cell: (803) 528-2269 > Email: chrish@aweber.com >=20 >=20 >=20 --Apple-Mail=_E4606A0C-23AA-4CFE-A812-653C3D615776 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=utf-8 Forgot to = mention, this is on PG 16.1

Thanks,


Chris = Hoover
Senior DBA
AWeber.com
Cell: (803) = 528-2269
Email: chrish@aweber.com



On Jun 14, 2024, at 12:52=E2=80=AF= PM, Chris Hoover <chrish@aweber.com> wrote:

All,

We had an outage today = that appears to have been caused by a query in "IPC:MessageQueueReceive=E2=80=9D wait = state blocking another query from completing a truncate. =  

Is there anyway to figure out what exactly it was = waiting on other than an IPC message?  I=E2=80=99m trying to get to = the true root cause of our outage.

Thanks,


Chris = Hoover
Senior DBA
AWeber.com
Cell: (803) = 528-2269
Email: chrish@aweber.com




= --Apple-Mail=_E4606A0C-23AA-4CFE-A812-653C3D615776--