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dormando edited this page Jan 11, 2023 · 1 revision

Memcached 1.6.18 Release Notes

Date: 2023-1-10

Download

http://www.memcached.org/files/memcached-1.6.18.tar.gz

Overview

Mostly fixes and improvements to proxy mode.

Meta protocol has some adjusments: extra spaces were being returns in a few instances. If your client is looking for an exact number of spaces in meta responses please take note. We regret the error.

Fixes

  • core: do not stop threads on SIGINT/SIGTERM
  • core: remove printf from signal handlers
  • proxy: iterate modified request handling
  • proxy: expose resp:elapsed()
  • proxy: log time now relative to resp lifetime
  • proxy: fix crash in await during SIGHUP reloads
  • proxy: fix lifecycle of backend connections
  • proxy: IO thread performance improvements
  • proxy: add mcp.AWAIT_BACKGROUND
  • proxy: fix lua registry corruption on data chunk error
  • proxy: add proxy_await_active stat
  • proxy: fix partial response read handling
  • proxy: fix flushing partial writes
  • proxy: add more backend failure messages
  • proxy: fix mcp.log_req crash on nil res
  • core: fix tagged listeners for len < 8
  • proxy: add debug symbols to lua build
  • core: give threads unique names
  • proxy: fix crash when backends are gc'd
  • remove libevent license from usage
  • Fixes to build with clang-15:
  • meta: remove meta_response_old start option
  • meta: allow mg without flags + reflect O/k on EN
  • meta: meta arithmetic command had excess spaces
  • meta: remove excess spaces from meta responses
  • proxy: fix bugs with backend connection initialization
  • Fix log timestamps after 2038
  • Fix function protypes for clang errors
  • proxy: add mcp.await FASTGOOD flag

New Features

See the Proxy wiki page page for updates to the proxy API.

Contributors

The following people contributed to this release since 1.6.17.

Note that this is based on who contributed changes, not how they were done. In many cases, a code snippet on the mailing list or a bug report ended up as a commit with your name on it.

Note that this is just a summary of how many changes each person made which doesn't necessarily reflect how significant each change was. For details on what led up into a branch, either grab the git repo and look at the output of git log 1.6.17..1.6.18 or use a web view.

    33	dormando
     1	Bernhard M. Wiedemann
     1	David Bohman
     1	David Carlier
     1	Khem Raj
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