Debian Bullseye comes with Memcached 1.6.9. Things to consider before and during the upgrade:
- T258779 must be Resolved
- Reimage servers two at a time per DC, reimage next batch after reimaged servers reach a hit ratio of 0.85
- ensure that each gutter is picking up the traffic
eqiad
- mc1037.eqiad.wmnet
- mc1038.eqiad.wmnet
- mc1039.eqiad.wmnet
- mc1040.eqiad.wmnet
- mc1041.eqiad.wmnet
- mc1042.eqiad.wmnet
- mc1043.eqiad.wmnet
- mc1044.eqiad.wmnet
- mc1045.eqiad.wmnet
- mc1046.eqiad.wmnet
- mc1047.eqiad.wmnet
- mc1048.eqiad.wmnet
- mc1049.eqiad.wmnet
- mc1050.eqiad.wmnet
- mc1051.eqiad.wmnet
- mc1052.eqiad.wmnet
- mc1053.eqiad.wmnet
- mc1054.eqiad.wmnet
- mc-gp1001.eqiad.wmnet
- mc-gp1002.eqiad.wmnet
- mc-gp1003.eqiad.wmnet
codfw
- mc2038.codfw.wmnet
- mc2039.codfw.wmnet
- mc2040.codfw.wmnet
- mc2041.codfw.wmnet
- mc2042.codfw.wmnet
- mc2043.codfw.wmnet
- mc2044.codfw.wmnet
- mc2045.codfw.wmnet
- mc2046.codfw.wmnet
- mc2047.codfw.wmnet
- mc2048.codfw.wmnet
- mc2049.codfw.wmnet
- mc2050.codfw.wmnet
- mc2051.codfw.wmnet
- mc2052.codfw.wmnet
- mc2053.codfw.wmnet
- mc2054.codfw.wmnet
- mc2055.codfw.wmnet
- mc-gp2001.codfw.wmnet
- mc-gp2002.codfw.wmnet
- mc-gp2003.codfw.wmnet