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Change THP warning to use madvise rather than never (#7771)

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completes b2419c31c166bd2d73f7af3d089859795c0e3506

(cherry picked from commit 1461f02deb65585bb47c4d50d68ef733edfba6f9)
This commit is contained in:
Oran Agra 2020-09-09 15:39:57 +03:00
parent 3cd6c26056
commit 47364bce69
1 changed files with 1 additions and 1 deletions
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src/server.c
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@ -4728,7 +4728,7 @@ void linuxMemoryWarnings(void) {
serverLog(LL_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect."); serverLog(LL_WARNING,"WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.");
} }
if (THPIsEnabled()) { if (THPIsEnabled()) {
serverLog(LL_WARNING,"WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled."); serverLog(LL_WARNING,"WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo madvise > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled (set to 'madvise' or 'never').");
} }
} }
#endif /* __linux__ */ #endif /* __linux__ */