MongoDB and PHP - Out of memory -


i know, there couple of articles mongodb , memory, non of these me.

i have quite big database of around 40gb. server ubuntu 16.04 32gb ram , ssd disk.

now, following messages when try insert new document:

mongodb\driver\exception\bulkwriteexception [ error ]: file /var/lib/mongodb/databasename.35 open/create failed in createprivatemap (look in log more information)

and in logfiles found this:

2017-07-25t18:20:58.154+0200 network  [conn22] received client metadata 127.0.0.1:46124 conn22: { driver: { name: "mongoc / ext-mongodb:php", version: "1.5.5 / 1.2.9" }, os: { type: "linux", name: "ubuntu", version: "16.04", architecture: "x86_64" }, platform: "cfg=0x30c9 posix=200809 stdc=201112 cc=gcc 5.4.0 20160609 cflags="-g -o2" ldflags="" / php 5.6.30" } 2017-07-25t18:20:58.189+0200 e control  [conn22] mmap private failed out of memory. (64 bit build) 2017-07-25t18:20:58.189+0200 -        [conn22] assertion: 13636:file /var/lib/mongodb/database_name.35 open/create failed in createprivatemap (look in log more information) src/mongo/db/storage/mmap_v1/durable_mapped_file.cpp 271 2017-07-25t18:20:58.205+0200 control  [conn22]

i have enough diskspace:

filesystem         size  used avail use% mounted on /dev/ploop42094p1  799g  299g  468g  40% / devtmpfs            16g     0   16g   0% /dev tmpfs               16g     0   16g   0% /dev/shm tmpfs               16g  578m   16g   4% /run tmpfs              5.0m   20k  5.0m   1% /run/lock tmpfs               16g     0   16g   0% /sys/fs/cgroup none                16g     0   16g   0% /run/shm

and think memory well:

free -m               total        used        free      shared  buff/cache   available mem:          32768        1235        7659         840       23873       31268 swap:          1024         945          78

any ideas how fix this?


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