[Bug 1838109] Re: civetweb does not allow tuning of maximum socket connections

[Launchpad Bug Tracker]

This bug was fixed in the package ceph - 13.2.6-0ubuntu0.19.04.4

---------------
ceph (13.2.6-0ubuntu0.19.04.4) disco; urgency=medium

  [ Eric Desrochers ]
  * Ensure that daemons are not automatically restarted during package
    upgrades (LP: #1840347):
    - d/rules: Use "--no-restart-after-upgrade" and "--no-stop-on-upgrade"
      instead of "--no-restart-on-upgrade".
    - d/rules: Drop exclusion for ceph-[osd,mon,mds] for restarts.

  [ James Page ]
  * d/p/ceph-volume-wait-for-lvs.patch: Cherry pick inflight fix to
    ensure that required wal and db devices are present before
    activating OSD's (LP: #1828617).

  [ Jesse Williamson ]
  * d/p/civetweb-755-1.8-somaxconn-configurable*.patch: Backport changes
    to civetweb to allow tuning of SOMAXCONN in Ceph RADOS Gateway
    deployments (LP: #1838109).

 -- James Page <james.page at ubuntu.com>  Fri, 30 Aug 2019 10:10:04 +0100

** Changed in: ceph (Ubuntu Disco)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1838109

Title:
  civetweb does not allow tuning of maximum socket connections

Status in Ceph:
  New
Status in Ubuntu Cloud Archive:
  Fix Committed
Status in Ubuntu Cloud Archive queens series:
  In Progress
Status in Ubuntu Cloud Archive rocky series:
  Fix Committed
Status in Ubuntu Cloud Archive stein series:
  Fix Committed
Status in Ubuntu Cloud Archive train series:
  In Progress
Status in ceph package in Ubuntu:
  Fix Released
Status in ceph source package in Bionic:
  Fix Committed
Status in ceph source package in Disco:
  Fix Released
Status in ceph source package in Eoan:
  Fix Released

Bug description:
  [Impact]
  RADOS gateway can run out of sockets prior to consuming the CPU and memory resources on the server on which it is running.

  [Test Case]
  Deploy RGW to a large server; scale test - RGW processes will only be able to service around 100 open connections.

  [Regression Potential]
  Medium; the fix introduces a new configuration option for civetweb (the web connector for RGW) to allow the max connections to be set via configuration, rather than being set during compilation; improvement has been accepted upstream in the civetweb project.

  [Original Bug Report]
  Civetweb does not offer an option for configuring the maximum number of sockets available. Some users run out of sockets and are left with no workaround.

  This patch adds a new user-configurable parameter, "max_connections".

  See:
  https://github.com/civetweb/civetweb/issues/775

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