kernel java page allocation failure order 4 mode 0x20

Question

Hi Guys,

I am trying to run one Map Reduce job, but it shows me the below error.

kernel: java: page allocation failure. order:4, mode:0x20

How can I solve this error?

 

Answer 1

Hi@akhtar,

You may got this error because of insufficient amount of free Ram in your system. To find the current value on your system, run the following command.

[localhost@host]# cat /proc/sys/vm/min_free_kbytes

Now, raise the value. Try doubling, then quadrupling the value. Note that setting the value too low or too high could have detrimental effects on your system. Use the following command to modify the value of min_free_kbytes, substituting <value> with your intended value.

[localhost@host]# echo <value> > /proc/sys/vm/min_free_kbytes

Hope this will solve this error.