If a user follows our standard installation instructions, either using the one-liner, or following the manual steps, they will get these warning messages with MongoDB:
2017-02-01T23:10:31.846+0000 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2017-02-01T23:10:31.846+0000 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2017-02-01T23:10:31.847+0000 I CONTROL [initandlisten]
2017-02-01T23:10:31.847+0000 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2017-02-01T23:10:31.847+0000 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2017-02-01T23:10:31.847+0000 I CONTROL [initandlisten]
2017-02-01T23:10:31.847+0000 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 4096 processes, 64000 files. Number of processes should be at least 32000 : 0.5 times number of files.
(NB Above is seen with CentOS 7.3. Ubuntu 14.04 will only have the first two warnings).
Should we:
(A) Update our installer script to set these values
(B) Update our documentation to recommend that the user changes these values
Thoughts?
If a user follows our standard installation instructions, either using the one-liner, or following the manual steps, they will get these warning messages with MongoDB:
(NB Above is seen with CentOS 7.3. Ubuntu 14.04 will only have the first two warnings).
Should we:
(A) Update our installer script to set these values
(B) Update our documentation to recommend that the user changes these values
Thoughts?