Nels Nelson nelsnelson
nelsnelson
/ nested-containers.txt
Created
April 10, 2014 19:12
Nested containers not visible in host
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| # lxc-create -n outer -t minimal | |
| # lxc-start -n outer -d | |
| # lxc-attach -n outer -- bash | |
| bash-4.2# mkdir /var/lib/lxc | |
| bash-4.2# lxc-create -n inner -t minimal | |
| bash-4.2# lxc-start -n inner -d | |
| bash-4.2# lxc-attach -n inner -- bash | |
| bash-4.2# ls /sys/fs/cgroup | |
| blkio cpu cpuacct cpuset devices freezer hugetlb hugetlb,net_prio,perf_event,blkio,freezer,devices,memory,cpuacct,cpu,cpuset memory net_prio perf_event | |
| bash-4.2# |
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| /sys/fs/cgroup$ ls -la | |
| total 0 | |
| drwxr-xr-x. 4 root root 0 Mar 28 18:42 . | |
| drwxr-xr-x. 7 root root 0 Mar 28 18:42 .. | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_merged | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_merged_recursive | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_queued | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_queued_recursive | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_service_bytes | |
| -r--r--r--. 1 root root 0 Mar 28 18:42 blkio.io_service_bytes_recursive |
nelsnelson
/ gist:10426516
Created
April 10, 2014 21:47
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| 2013-04-15 Daniel P. Berrange <[email protected]> | |
| Track symlinks for co-mounted cgroup controllers | |
| If a cgroup controller is co-mounted with another, eg | |
| /sys/fs/cgroup/cpu,cpuacct | |
| Then it is a requirement that there exist symlinks at | |
| /sys/fs/cgroup/cpu |
nelsnelson
/ blacklist
Last active
August 29, 2015 14:00
Failure to start a container with 'lxc.seccomp' option set
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| 2 | |
| blacklist | |
| mknod errno 0 |
nelsnelson
/ hashcomp.py
Created
April 25, 2014 18:45
Conditional function invocations versus hashed function invocations
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| #! /usr/bin/env python | |
| import sys | |
| quiet = False | |
| def noop0(): | |
| if not quiet: | |
| sys.stdout.write('0') | |
| def noop1(): |
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| root@nelsnelson-test1:~/src/load-tests# ./load-public-net.py 4 20 5 | |
| 2014-08-19 19:51:06,355 INFO [Load] Creating server load-test-0 | |
| 2014-08-19 19:51:06,523 INFO [Load] Created server cb91f456-6406-487b-a673-6e44b4e2da72 in process 12149 with password LSPi2pzjNUeB | |
| 2014-08-19 19:51:06,523 INFO [Load] Waiting until server cb91f456-6406-487b-a673-6e44b4e2da72 status is ACTIVE at 1408477866.52 | |
| 2014-08-19 19:51:07,611 INFO [Load] Server cb91f456-6406-487b-a673-6e44b4e2da72 is in state BUILD | |
| 2014-08-19 19:51:08,697 INFO [Load] Server cb91f456-6406-487b-a673-6e44b4e2da72 is in state BUILD | |
| 2014-08-19 19:51:09,782 INFO [Load] Server cb91f456-6406-487b-a673-6e44b4e2da72 is in state BUILD | |
| 2014-08-19 19:51:10,465 INFO [Load] Creating server load-test-1 | |
| 2014-08-19 19:51:10,615 INFO [Load] Created server 551e6c71-1f98-41d3-8dbf-1fbd683db9e3 in process 12149 with password PvL6eVhEKLm8 | |
| 2014-08-19 19:51:10,616 INFO [Load] Waiting until server 551e6c71-1f98-41d3-8dbf-1fbd683db9e3 status is ACTIVE at 1408477870.62 |
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| Traceback (most recent call last): | |
| File "/opt/stack/nova/nova/compute/manager.py", line 2394, in do_terminate_ins | |
| self._delete_instance(context, instance, bdms, quotas) | |
| File "/opt/stack/nova/nova/hooks.py", line 131, in inner | |
| rv = f(*args, **kwargs) | |
| File "/opt/stack/nova/nova/compute/manager.py", line 2363, in _delete_instance | |
| quotas.rollback() | |
| File "/opt/stack/nova/nova/openstack/common/excutils.py", line 82, in __exit__ | |
| six.reraise(self.type_, self.value, self.tb) | |
| File "/opt/stack/nova/nova/compute/manager.py", line 2340, in _delete_instance |
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| [Results] | |
| containers = 120 | |
| flavor = 64MB Container | |
| image = Debian 7 LXC | |
| [Creation] | |
| mean = 67.27 | |
| min = 8.79 | |
| max = 124.45 | |
| timeouts = 0 |
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| [Results] | |
| containers = 30 | |
| flavor = 64MB Container | |
| image = Debian 7 LXC | |
| [Creation] | |
| mean = 12.84 | |
| min = 7.76 | |
| max = 17.42 |
nelsnelson
/ gist:2d8593423b6e9478e029
Last active
August 29, 2015 14:05
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| 2014-08-26 03:40:09.520 WARNING nova.virt.disk.mount.nbd [req-a144b56c-094b-4d89-9ba5-937aa1fee111 ServersTestJSON-698736888 ServersTestJSON-1373125453] No free nbd devices | |
| 2014-08-26 03:40:09.520 DEBUG nova.openstack.common.lockutils [req-a144b56c-094b-4d89-9ba5-937aa1fee111 ServersTestJSON-698736888 ServersTestJSON-1373125453] Released semaphore "nbd-allocation-lock" fro | |
| m (pid=15425) lock /opt/stack/nova/nova/openstack/common/lockutils.py:291 | |
| 2014-08-26 03:40:09.521 DEBUG nova.openstack.common.lockutils [req-a144b56c-094b-4d89-9ba5-937aa1fee111 ServersTestJSON-698736888 ServersTestJSON-1373125453] Semaphore / lock released "_inner_get_dev" f | |
| rom (pid=15425) inner /opt/stack/nova/nova/openstack/common/lockutils.py:328 | |
| 2014-08-26 03:40:09.521 INFO nova.virt.disk.mount.api [req-a144b56c-094b-4d89-9ba5-937aa1fee111 ServersTestJSON-698736888 ServersTestJSON-1373125453] Device allocation failed. Will retry in 2 seconds. | |
| 2014-08-26 03:40:10.049 DEBUG nova.openstack.common.periodic_task [-] Running periodic task C |