当我尝试更新代理中的策略时，弹出此错误：
Failed to canonicalise filename '/var/rudder/share/0f546498-93eb-41fc-835e-111045a7971f/rules/cfengine-community/rudder_promises_generated' (realpath: No such file or directory)
使用服务器调试 () 查看连接的日志rudder server debug 10.222.111.38，我发现 Rudder 为代理创建的目录不是/var/rudder/share/6149530e-db36-49d3-81da-ed3c450ce692，/var/rudder/share/0f546498-93eb-41fc-835e-111045a7971f这就是错误的原因。以下是日志：
rudder verbose: Path: /var/rudder/share/6149530e-db36-49d3-81da-ed3c450ce692
rudder verbose: maproot user: rudder\-agent,
rudder verbose: maproot user: 10.222.111.38,
rudder verbose: admit: rudder\-agent
rudder verbose: admit: 10.222.111.38
rudder verbose: Path: /var/rudder/shared-files/6149530e-db36-49d3-81da-ed3c450ce692
rudder verbose: maproot user: rudder\-agent,
rudder verbose: maproot user: 10.222.111.38,
rudder verbose: admit: rudder\-agent
rudder verbose: admit: 10.222.111.38
rudder verbose: Path: /var/rudder/share/root
rudder verbose: maproot user: rudder\-server,
rudder verbose: maproot user: 127.0.0.1,
rudder verbose: admit: rudder\-server
rudder verbose: admit: 127.0.0.1
rudder verbose: Path: /var/rudder/shared-files/root
rudder verbose: maproot user: rudder\-server,
rudder verbose: maproot user: 127.0.0.1,
rudder verbose: admit: rudder\-server
rudder verbose: admit: 127.0.0.1
rudder verbose: Path: /opt/rudder/bin/rudder
rudder verbose: admit: 127\.0\.0\.1
rudder verbose: admit: 127.0.0.1
rudder verbose: Path: /var/rudder/configuration-repository/ncf/50_techniques
rudder verbose: deny: .*
rudder verbose: === END summary of access promises ===
rudder verbose: Setting minimum acceptable TLS version: 1.0
rudder verbose: Setting cipher list for incoming TLS connections to: AES256-GCM-SHA384:AES256-SHA
rudder verbose: Listening for connections on socket descriptor 6 ...
notice: Server is starting...
rudder verbose: Obtained IP address of '10.222.111.38' on socket 7 from accept
rudder verbose: New connection (from 10.222.111.38, sd 7), spawning new thread...
rudder info: 10.222.111.38> Accepting connection
rudder verbose: 10.222.111.38> Setting socket timeout to 600 seconds.
rudder verbose: 10.222.111.38> Peeked nothing important in TCP stream, considering the protocol as TLS
rudder verbose: 10.222.111.38> TLS version negotiated: TLSv1.2; Cipher: AES256-GCM-SHA384,TLSv1/SSLv3
rudder verbose: 10.222.111.38> TLS session established, checking trust...
rudder verbose: 10.222.111.38> Setting IDENTITY: USERNAME=root
rudder verbose: 10.222.111.38> Received public key compares equal to the one we have stored
rudder verbose: 10.222.111.38> MD5=4351d487036501cf202cf4ecb594e50f: Client is TRUSTED, public key MATCHES stored one.
rudder info: 10.222.111.38> Hostname (reverse looked up): rudder-agent
rudder verbose: 10.222.111.38> Received: STAT /var/rudder/share/0f546498-93eb-41fc-835e-111045a7971f/rules/cfengine-community/rudder_promises_generated
rudder info: 10.222.111.38> Failed to canonicalise filename '/var/rudder/share/0f546498-93eb-41fc-835e-111045a7971f/rules/cfengine-community/rudder_promises_generated' (realpath: No such file or directory)
rudder verbose: 10.222.111.38> REFUSAL to user='root' of request: SYNCH 1492714371 STAT /var/rudder/share/0f546498-93eb-41fc-835e-111045a7971f/rules/cfengine-community/rudder_promises_generated
rudder verbose: 10.222.111.38> Received: STAT /var/rudder/tools/rudder_tools_updated
rudder verbose: 10.222.111.38> Translated to: STAT /var/rudder/tools/rudder_tools_updated
rudder verbose: 10.222.111.38> Received: MD5 /var/rudder/tools/rudder_tools_updated
rudder verbose: 10.222.111.38> Translated to: MD5 /var/rudder/tools/rudder_tools_updated
rudder verbose: 10.222.111.38> Remote peer terminated TLS session (SSL_read)
rudder info: 10.222.111.38> Closing connection, terminating thread
那么，是什么原因导致了这种行为？
我在 Ubuntu 12.04 上运行 Rudder 4.1。
问候， Joaquín Silva
答案1
看起来节点的 id 已经改变（过去6149530e-db36-49d3-81da-ed3c450ce692和现在0f546498-93eb-41fc-835e-111045a7971f）。
您可以重新安装该节点或者运行 rudder reinit（节点的 id 位于文件 /opt/rudder/etc/uuid.hive 中）。
有两种方法可以解决此问题：
最简单的方法是从 Rudder 中移除节点，rudder agent inventory在节点上运行，然后等待新节点出现在“接受新节点”页面中并接受它。您需要这样做，因为对于 Rudder 来说，它是一个不同的节点，旧节点不再存在。
另一种方法是将 uuid.hive 文件中的值更改为旧值 (so 6149530e-db36-49d3-81da-ed3c450ce692)，但这可能还不够，因为代理密钥可能已更改。但您不应该这样做，除非您更改了 uuid.hive 内容，而这正是导致您现在看到的错误的原因。