Just now we got an alert for tools-worker-1023 being down -- we've gotten at least one other similar alert this week. 1023 appears to be oom:
```
tools-worker-1023 login: [905477.270602] Out of memory: Kill process 4112 (java) score 1237 or sacrifice child
[905477.272482] Killed process 4112 (java) total-vm:4883480kB, anon-rss:2344756kB, file-rss:0kB, shmem-rss:0kB
[1990129.158042] Memory cgroup out of memory: Kill process 11218 (php-cgi) score 1299 or sacrifice child
[1990129.160831] Killed process 11218 (php-cgi) total-vm:1150764kB, anon-rss:693344kB, file-rss:4kB, shmem-rss:1876kB
[4995371.769324] Out of memory: Kill process 30576 (celery) score 1317 or sacrifice child
[4995371.771827] Killed process 30576 (celery) total-vm:5016380kB, anon-rss:2771392kB, file-rss:8kB, shmem-rss:0kB
[5116987.148417] Memory cgroup out of memory: Kill process 18113 (uwsgi) score 1366 or sacrifice child
[5116987.151273] Killed process 18113 (uwsgi) total-vm:986960kB, anon-rss:834172kB, file-rss:48kB, shmem-rss:116kB
[5189164.368251] Memory cgroup out of memory: Kill process 18112 (uwsgi) score 1301 or sacrifice child
[5189164.371252] Killed process 18112 (uwsgi) total-vm:850900kB, anon-rss:698576kB, file-rss:0kB, shmem-rss:116kB
[5189671.025825] Memory cgroup out of memory: Kill process 24763 (uwsgi) score 1270 or sacrifice child
[5189671.028507] Killed process 24763 (uwsgi) total-vm:785488kB, anon-rss:633148kB, file-rss:0kB, shmem-rss:116kB
[5190359.627871] Memory cgroup out of memory: Kill process 18110 (uwsgi) score 1456 or sacrifice child
[5190359.630893] Killed process 18110 (uwsgi) total-vm:1175372kB, anon-rss:1022888kB, file-rss:0kB, shmem-rss:116kB
[5190669.685051] Memory cgroup out of memory: Kill process 18111 (uwsgi) score 1658 or sacrifice child
[5190669.687083] Killed process 18111 (uwsgi) total-vm:1599160kB, anon-rss:1446628kB, file-rss:0kB, shmem-rss:116kB
[5191187.147851] Memory cgroup out of memory: Kill process 26969 (uwsgi) score 1424 or sacrifice child
[5191187.150208] Killed process 26969 (uwsgi) total-vm:1107928kB, anon-rss:955408kB, file-rss:0kB, shmem-rss:116kB
[5191290.996059] Memory cgroup out of memory: Kill process 1232 (uwsgi) score 1424 or sacrifice child
[5191290.998398] Killed process 1232 (uwsgi) total-vm:1107900kB, anon-rss:955360kB, file-rss:0kB, shmem-rss:116kB
[5191537.014654] Memory cgroup out of memory: Kill process 23332 (uwsgi) score 1402 or sacrifice child
[5191537.017966] Killed process 23332 (uwsgi) total-vm:1062684kB, anon-rss:910236kB, file-rss:0kB, shmem-rss:116kB
[5192262.710685] Memory cgroup out of memory: Kill process 2710 (uwsgi) score 1340 or sacrifice child
[5192262.712875] Killed process 2710 (uwsgi) total-vm:933264kB, anon-rss:780760kB, file-rss:0kB, shmem-rss:116kB
[5353522.538364] Memory cgroup out of memory: Kill process 8772 (uwsgi) score 1283 or sacrifice child
[5353522.541042] Killed process 8772 (uwsgi) total-vm:813440kB, anon-rss:661116kB, file-rss:0kB, shmem-rss:116kB
[5468368.203552] Memory cgroup out of memory: Kill process 25369 (uwsgi) score 1318 or sacrifice child
[5468368.208819] Killed process 25369 (uwsgi) total-vm:860256kB, anon-rss:734736kB, file-rss:0kB, shmem-rss:116kB
[5469346.238813] Memory cgroup out of memory: Kill process 25368 (uwsgi) score 1279 or sacrifice child
[5469346.240537] Killed process 25368 (uwsgi) total-vm:776672kB, anon-rss:651916kB, file-rss:0kB, shmem-rss:116kB
[5470066.719801] Memory cgroup out of memory: Kill process 25366 (uwsgi) score 1323 or sacrifice child
[5470066.721877] Killed process 25366 (uwsgi) total-vm:868672kB, anon-rss:744036kB, file-rss:0kB, shmem-rss:116kB
[5472051.101321] Memory cgroup out of memory: Kill process 25367 (uwsgi) score 1326 or sacrifice child
[5472051.104989] Killed process 25367 (uwsgi) total-vm:875904kB, anon-rss:750468kB, file-rss:0kB, shmem-rss:116kB
[5473902.704254] Memory cgroup out of memory: Kill process 14428 (uwsgi) score 1384 or sacrifice child
[5473902.706583] Killed process 14428 (uwsgi) total-vm:997816kB, anon-rss:872264kB, file-rss:0kB, shmem-rss:116kB
[5475353.942165] Memory cgroup out of memory: Kill process 25797 (uwsgi) score 1301 or sacrifice child
[5475353.945162] Killed process 25797 (uwsgi) total-vm:823264kB, anon-rss:698516kB, file-rss:0kB, shmem-rss:116kB
[5476722.932784] Memory cgroup out of memory: Kill process 27674 (uwsgi) score 1283 or sacrifice child
[5476722.934401] Killed process 27674 (uwsgi) total-vm:786780kB, anon-rss:661384kB, file-rss:0kB, shmem-rss:116kB
[5477953.654772] Memory cgroup out of memory: Kill process 3010 (uwsgi) score 1319 or sacrifice child
[5477953.656815] Killed process 3010 (uwsgi) total-vm:860604kB, anon-rss:736084kB, file-rss:8kB, shmem-rss:116kB
[5478950.652820] Memory cgroup out of memory: Kill process 18461 (uwsgi) score 1374 or sacrifice child
[5478950.655208] Killed process 18461 (uwsgi) total-vm:977956kB, anon-rss:852588kB, file-rss:0kB, shmem-rss:116kB
[5480098.827642] Memory cgroup out of memory: Kill process 3185 (uwsgi) score 1318 or sacrifice child
[5480098.829999] Killed process 3185 (uwsgi) total-vm:859896kB, anon-rss:735304kB, file-rss:0kB, shmem-rss:116kB
[5481122.132557] Memory cgroup out of memory: Kill process 19947 (uwsgi) score 1368 or sacrifice child
[5481122.135534] Killed process 19947 (uwsgi) total-vm:964508kB, anon-rss:838948kB, file-rss:0kB, shmem-rss:116kB
[5482208.325671] Memory cgroup out of memory: Kill process 2196 (uwsgi) score 1377 or sacrifice child
[5482208.328012] Killed process 2196 (uwsgi) total-vm:982892kB, anon-rss:857508kB, file-rss:0kB, shmem-rss:116kB
[5483436.984188] Memory cgroup out of memory: Kill process 15500 (uwsgi) score 1281 or sacrifice child
[5483436.985949] Killed process 15500 (uwsgi) total-vm:783300kB, anon-rss:657944kB, file-rss:0kB, shmem-rss:116kB
[5485418.477149] Memory cgroup out of memory: Kill process 8823 (uwsgi) score 1317 or sacrifice child
[5485418.480753] Killed process 8823 (uwsgi) total-vm:857064kB, anon-rss:731816kB, file-rss:0kB, shmem-rss:116kB
[5486444.782359] Memory cgroup out of memory: Kill process 28598 (uwsgi) score 1370 or sacrifice child
[5486444.786469] Killed process 28598 (uwsgi) total-vm:968920kB, anon-rss:843556kB, file-rss:0kB, shmem-rss:116kB
[5487539.561247] Memory cgroup out of memory: Kill process 21880 (uwsgi) score 1279 or sacrifice child
[5487539.565710] Killed process 21880 (uwsgi) total-vm:777676kB, anon-rss:652160kB, file-rss:0kB, shmem-rss:116kB
[5488370.139465] Memory cgroup out of memory: Kill process 4607 (uwsgi) score 1291 or sacrifice child
[5488370.142104] Killed process 4607 (uwsgi) total-vm:803892kB, anon-rss:678496kB, file-rss:0kB, shmem-rss:116kB
[5489495.265551] Memory cgroup out of memory: Kill process 8334 (uwsgi) score 1336 or sacrifice child
[5489495.268701] Killed process 8334 (uwsgi) total-vm:896240kB, anon-rss:771484kB, file-rss:0kB, shmem-rss:116kB
[5490678.400407] Memory cgroup out of memory: Kill process 28136 (uwsgi) score 1379 or sacrifice child
[5490678.404380] Killed process 28136 (uwsgi) total-vm:987484kB, anon-rss:862624kB, file-rss:0kB, shmem-rss:116kB
[5491926.588970] Memory cgroup out of memory: Kill process 21132 (uwsgi) score 1283 or sacrifice child
[5491926.591256] Killed process 21132 (uwsgi) total-vm:786528kB, anon-rss:661048kB, file-rss:0kB, shmem-rss:116kB
[5493973.296139] Memory cgroup out of memory: Kill process 14159 (uwsgi) score 1321 or sacrifice child
[5493973.298852] Killed process 14159 (uwsgi) total-vm:864552kB, anon-rss:739872kB, file-rss:0kB, shmem-rss:116kB
[5495003.469045] Memory cgroup out of memory: Kill process 32075 (uwsgi) score 1373 or sacrifice child
[5495003.471930] Killed process 32075 (uwsgi) total-vm:976056kB, anon-rss:850368kB, file-rss:0kB, shmem-rss:116kB
[5547904.818027] Out of memory: Kill process 20330 (celery) score 1147 or sacrifice child
[5547904.819886] Killed process 20330 (celery) total-vm:1947276kB, anon-rss:1291668kB, file-rss:0kB, shmem-rss:0kB
```