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 1umxUC-000QgF-Lg for pgsql-general@arkaria.postgresql.org; Fri, 15 Aug 2025 16:41:02 +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 1umxUC-000s3Q-17 for pgsql-general@arkaria.postgresql.org; Fri, 15 Aug 2025 16:41:00 +0000 Received: from magus.postgresql.org ([2a02:c0:301:0:ffff::29]) by malur.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1umxUB-000s3I-Mx for pgsql-general@lists.postgresql.org; Fri, 15 Aug 2025 16:41:00 +0000 Received: from mail-il1-x129.google.com ([2607:f8b0:4864:20::129]) by magus.postgresql.org with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1umxU9-0001sC-25 for pgsql-general@lists.postgresql.org; Fri, 15 Aug 2025 16:40:59 +0000 Received: by mail-il1-x129.google.com with SMTP id e9e14a558f8ab-3e571d400daso11354265ab.1 for ; Fri, 15 Aug 2025 09:40:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1755276056; x=1755880856; darn=lists.postgresql.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=TkC1ABLO71Twjf/atagBWwD9lgj77H4Ks6xysDfaq2U=; b=ngHCmu6lYwreytowEN9NvRbvGNfPWH92+ChZcz0l5JP2yypX4ulbqk0FTYVeiYgdBf xzDWLYEybhwVbu45wN+F37Ld/KxHXpQnB0+4i3L218Q1NYzInesi7Fl8Yyt46IJdY85F j+SkALrL5ocRyGSyFQQO62SLyElJpU5OWlY1I306HicQkPm14h4F6h9Z0+pAMq4JVHDp TIerdqSoJWOlmtgDED08+s1WeAqSXgsSMIR2GRUsBGjQlIWDXpEMi0HWfstcZ1DMwDst ZhfH/fNIujMgafkte7LZEz+y4H0curec6Xg+CK9B1KVNp8Sf2fWRvcKy3csYfL9YNS8Y Oi0g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755276056; x=1755880856; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=TkC1ABLO71Twjf/atagBWwD9lgj77H4Ks6xysDfaq2U=; b=HMyNJONyRxVQWEAXA6VFx9dsub7nsC0R54nbxX+GKYuq5UPKl34kQ/5M7LYJ77lkXo 4pqWf9GhWJ+Ze8rKnitp9+CoO8S/18UZu+Rxi5Newgo8T8GhDAfJKvqjCPUEJlvD3DaQ vSt9Fhzc8xtLFcdrW/xuIRLGKQ+5+pbzHkhSXr3Vfr75e+RIkzfdQcDFIZPgrKiKRXZQ j/+UAsS/SrYIt23XbchE4uDlnKRVGyAVA7yjUJZIVZH86uM+xlk+Q+qybXmjM8VMbrML 4GfzUJxXGn3L5Xh2IpG6mK5qbOWPqockMQPzxD2PhdtELXrUnc2NzdEmxyEgQ0ekFjht m6Gw== X-Forwarded-Encrypted: i=1; AJvYcCW+H11Z9mCv8QCRkFsxeNMcxRl88rI+VFOEhWGNTWcUqRp2Xpi6jqydhvaa4FPXg0dERSgh8nFY+HInf1DZ@lists.postgresql.org X-Gm-Message-State: AOJu0Yz2qGOrUhk32qyY9docR6uQI5sCy5WsCEQj7teprDkcchdPLVqv MzIYLp9yNjb89r3lKmFc+qxm62Tphy+W/0QjS47cRKaAMLMwHvaiRx2R+eVxXRQrTi/Hk2nwsHN BwLOjqF92R161sLJW+hmBXoBA7AKBCpg= X-Gm-Gg: ASbGncvhcKsGCTZdGEvE1NAcoMwXxbQ49kwfIM9u0cWfUagENlvgpuYIVb98aEHm4Qh sfK6DJ5OaiC4U5/ZJLotorkidTqW8KcXgkJ2f9EypdFOoPvBBVciqQ+QtcS6EFwH68Sib3/5dHe 259/R68EISlMSUaaRq2txIn+DdRN1bV5v+GiwaTDbx6H+aIr+JLkYijx5fJhBUe84VkhXbx0zeJ fB25rS+wPROHSgzyM5KwIBFHGLusxgEVNdTsTe81zNVkcEfSWhL X-Google-Smtp-Source: AGHT+IGCR/eAJcBhhu583rjxfIj7VFwuWTJskYuCUPssOxNTpbB3XMEdNX7p6KAJl9zwePOVrpJKEuyknqF8L/VwmBM= X-Received: by 2002:a05:6e02:2706:b0:3e5:6999:3295 with SMTP id e9e14a558f8ab-3e57e9cfb0bmr58400105ab.23.1755276055110; Fri, 15 Aug 2025 09:40:55 -0700 (PDT) MIME-Version: 1.0 References: <73f3723b-f279-43c6-884d-d12b3151ec9e@aklaver.com> In-Reply-To: From: Greg Sabino Mullane Date: Fri, 15 Aug 2025 12:40:18 -0400 X-Gm-Features: Ac12FXzDDJMv4DQcNDYjhTgRs6KWC7Ufa7XrVB2pwabdENpRPn6riOf5Ch2LhZY Message-ID: Subject: Re: Questions about the continuity of WAL archiving To: Adrian Klaver Cc: Bob Jolliffe , pgsql-general@lists.postgresql.org Content-Type: multipart/alternative; boundary="000000000000bf6bf6063c6a0d07" List-Id: List-Help: List-Subscribe: List-Post: List-Owner: List-Archive: Archived-At: Precedence: bulk --000000000000bf6bf6063c6a0d07 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Tue, Aug 12, 2025 at 3:20=E2=80=AFPM Adrian Klaver wrote: > File creation time in S3 is relatively slow so backup/restore > performance is improved by enabling file bundling. > Just to be clear for the archives, pgbackrest's file bundling only applies to backups, not to WAL, which is the OP is dealing with here. Pixian Shi, what sort of WAL volume are we dealing with? (in WALs generated per minute) Cheers, Greg -- Crunchy Data - https://www.crunchydata.com Enterprise Postgres Software Products & Tech Support --000000000000bf6bf6063c6a0d07 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
On Tue, Aug 12, 2025 at 3:20=E2=80=AFPM A= drian Klaver <adrian.klaver= @aklaver.com> wrote:
File creation time= in S3 is relatively slow so backup/restore
performance is improved by enabling file bundling.
Just to be clear for the archives, pgbackrest's file bundli= ng only applies to backups, not to WAL, which is the OP is dealing with her= e.

Pixian Shi, what sort of WAL volume are we deal= ing with? (in WALs generated per minute)

Cheers,
= Greg

--
Crunchy Data - https://www.crunchydata.com
Enterprise Postgres Software Products & Tech Support
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