Google compute engine 谷歌云计算引擎冻结

今天我发现我在google云中的vm实例有问题

我无法通过gcloud compute ssh连接。唯一的解决方案是关闭vm并重新启动它

我想我找到了发生错误的正确日志文件

/var/log/daemon.log

Nov 23 17:39:01 globo-de systemd[1]: Started Clean php session files.
Nov 23 18:09:01 globo-de systemd[1]: Starting Clean php session files...
Nov 23 18:09:03 globo-de systemd[1]: Started Clean php session files.
Nov 23 18:39:01 globo-de systemd[1]: Starting Clean php session files...
Nov 23 18:39:04 globo-de systemd[1]: Started Clean php session files.
Nov 23 18:56:49 globo-de google-ip-forwarding: WARNING Exception running ['ip', 'route', 'ls', 'table', 'local', 'type', 'local', 'scope', 'host', 'dev', 'eth0', 'proto', '66']. [Errno 12] Cannot allocate memory.
Nov 23 18:57:43 globo-de google-accounts: ERROR Exception calling the response handler. [Errno 12] Cannot allocate memory.#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/metadata_watcher.py", line 196, in WatchMetadata#012    handler(response)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/accounts_daemon.py", line 259, in HandleAccounts#012    self.oslogin.UpdateOsLogin(enable=False)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 79, in UpdateOsLogin#012    status = self._GetStatus()#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 60, in _GetStatus#012    retcode = self._RunOsLoginControl('status')#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 47, in _RunOsLoginControl#012    return subprocess.call([constants.OSLOGIN_CONTROL_SCRIPT, action])#012  File "/usr/lib/python2.7/subprocess.py", line 168, in call#012    return Popen(*popenargs, **kwargs).wait()#012  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__#012    errread, errwrite)#012  File "/usr/lib/python2.7/subprocess.py", line 916, in _execute_child#012    self.pid = os.fork()#012OSError: [Errno 12] Cannot allocate memory
Nov 23 18:58:02 globo-de google-ip-forwarding: WARNING Exception running ['ip', 'route', 'ls', 'table', 'local', 'type', 'local', 'scope', 'host', 'dev', 'eth0', 'proto', '66']. [Errno 12] Cannot allocate memory.
Nov 23 18:59:35 globo-de google-ip-forwarding: WARNING Exception running ['ip', 'route', 'ls', 'table', 'local', 'type', 'local', 'scope', 'host', 'dev', 'eth0', 'proto', '66']. [Errno 12] Cannot allocate memory.
Nov 23 18:59:54 globo-de google-accounts: ERROR Exception calling the response handler. [Errno 12] Cannot allocate memory.#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/metadata_watcher.py", line 196, in WatchMetadata#012    handler(response)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/accounts_daemon.py", line 259, in HandleAccounts#012    self.oslogin.UpdateOsLogin(enable=False)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 79, in UpdateOsLogin#012    status = self._GetStatus()#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 60, in _GetStatus#012    retcode = self._RunOsLoginControl('status')#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 47, in _RunOsLoginControl#012    return subprocess.call([constants.OSLOGIN_CONTROL_SCRIPT, action])#012  File "/usr/lib/python2.7/subprocess.py", line 168, in call#012    return Popen(*popenargs, **kwargs).wait()#012  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__#012    errread, errwrite)#012  File "/usr/lib/python2.7/subprocess.py", line 916, in _execute_child#012    self.pid = os.fork()#012OSError: [Errno 12] Cannot allocate memory
Nov 23 19:03:53 globo-de google-ip-forwarding: WARNING Exception running ['ip', 'route', 'ls', 'table', 'local', 'type', 'local', 'scope', 'host', 'dev', 'eth0', 'proto', '66']. [Errno 12] Cannot allocate memory.
Nov 23 19:07:52 globo-de google-accounts: ERROR Exception calling the response handler. [Errno 12] Cannot allocate memory.#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/metadata_watcher.py", line 196, in WatchMetadata#012    handler(response)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/accounts_daemon.py", line 259, in HandleAccounts#012    self.oslogin.UpdateOsLogin(enable=False)#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 79, in UpdateOsLogin#012    status = self._GetStatus()#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 60, in _GetStatus#012    retcode = self._RunOsLoginControl('status')#012  File "/usr/lib/python2.7/dist-packages/google_compute_engine/accounts/oslogin_utils.py", line 47, in _RunOsLoginControl#012    return subprocess.call([constants.OSLOGIN_CONTROL_SCRIPT, action])#012  File "/usr/lib/python2.7/subprocess.py", line 168, in call#012    return Popen(*popenargs, **kwargs).wait()#012  File "/usr/lib/python2.7/subprocess.py", line 390, in __init__#012    errread, errwrite)#012  File "/usr/lib/python2.7/subprocess.py", line 916, in _execute_child#012    self.pid = os.fork()#012OSError: [Errno 12] Cannot allocate memory
Nov 23 19:09:37 globo-de google-ip-forwarding: WARNING Exception running ['ip', 'route', 'ls', 'table', 'local', 'type', 'local', 'scope', 'host', 'dev', 'eth0', 'proto', '66']. [Errno 12] Cannot allocate memory.
Nov 23 19:11:32 globo-de systemd[1]: phpsessionclean.service: Failed to fork: Cannot allocate memory
Nov 23 19:11:56 globo-de systemd[1]: phpsessionclean.service: Failed to run 'start' task: Cannot allocate memory
Nov 23 19:12:24 globo-de systemd[1]: Failed to start Clean php session files.
Nov 23 19:12:50 globo-de systemd[1]: phpsessionclean.service: Unit entered failed state.
Nov 23 19:13:37 globo-de systemd[1]: phpsessionclean.service: Failed with result 'resources'.
Nov 23 19:14:58 globo-de systemd[1]: apt-daily.service: Failed to fork: Cannot allocate memory
Nov 23 19:16:13 globo-de systemd[1]: apt-daily.service: Failed to run 'start' task: Cannot allocate memory

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我能做些什么来防止这种情况再次发生？

我想问题在于谷歌云计算引擎vm没有交换文件。所以我用在谷歌上找到的以下命令创建了一个

sudo dd if=/dev/zero of=/var/swap bs=2048 count=524288
sudo chmod 600 /var/swap
sudo mkswap /var/swap
sudo swapon /var/swap

然后我在/etc/fstab中添加了以下行，使其成为永久性的

/var/swap none swap sw 0 0

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另一个解决方案是避免将vm.swappiness设置为0

#sysctl-w vm.swappiness=0

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然而，这听起来更像是一个操作系统映像问题，而不是谷歌云。

现在可以正常工作了吗？。我也面临同样的问题。是的，冻结对我来说已经停止了。