A Process Exits Unexpectedly Due to the "Out of memory" Error Encountered During Tuning

Symptom

During tuning, error messages similar to the following may be displayed:

Symptom 1: The tuning is terminated abnormally.

Symptom 2: The process exits.

Solution

Run the dmesg command to check whether the process exits due to the "Out of memory" error triggered by the OS.

dmesg |grep "Out of memory"

If information similar to the following is displayed, the "Out of memory" error is triggered:

[519308.099433] Out of memory: Killed process 994362 (aoe) total-vm:23064888kB, anon-rss:16472380kB, file-rss:0kB, shmem-rss:0kB, UID:0 pgtables:35352kB oom_score_adj:0

The solution is to use a tuning environment with larger host memory.