l3中出现大量消息超时错误，对网络的操作各种异常。

报错如下：

2016-02-25 05:54:59.886 15110 ERROR neutron.agent.l3.agent [req-db9207e6-9270-4f23-8c19-0d91d20cc6fb ] Failed synchronizing routers due to RPC error
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent Traceback (most recent call last):
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 593, in fetch_and_sync_all_routers
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     routers = self.plugin_rpc.get_routers(context)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/neutron/agent/l3/agent.py", line 93, in get_routers
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     router_ids=router_ids)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/client.py", line 156, in call
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     retry=self.retry)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/transport.py", line 90, in _send
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     timeout=timeout, retry=retry)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 350, in send
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     retry=retry)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 339, in _send
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     result = self._waiter.wait(msg_id, timeout)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 243, in wait
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     message = self.waiters.get(msg_id, timeout=timeout)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent   File "/usr/lib/python2.7/site-packages/oslo_messaging/_drivers/amqpdriver.py", line 149, in get
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent     'to message ID %s' % msg_id)
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent MessagingTimeout: Timed out waiting for a reply to message ID d4baae114cee4f6d831c5eec3c5f0de3
2016-02-25 05:54:59.886 15110 TRACE neutron.agent.l3.agent

所有超时都指向同步路由的操作。

而且同步失败时，rabbit中的队列q-l3-plugin中有大量未应答消息积压，该队列为同步路由时使用，路由同步时会使用消息队列传送所有路由的属性详情，消息量很大
1）测试是否由于消息太大导致，编写测试代码，尝试连续1000次发送该消息，并未出现丢失消息的情况，
2）尝试减少路由器数量，短时内情况有所改善，但是随时间增加，消息积压依然有更加严重的趋势
3）尝试合入K版本oslo_messaging的最新更新，未有改善

最终跟踪neutron代码，发现消息队列出现Timeout的原因是：
neutron在同步路由信息时，会从neutron-server获取所有router的信息，这个过程会比较长（130s左右，和网络资源的多少有关系），而 在/etc/neutron/neutron.conf中会有一个配置项“rpc_response_timeout”，它用来配置RPC的超时时间，默认为60s,所以导致超时异常.解决方法为设置 rpc_response_timeout = 180

延时是解决各种问题的大招啊。。。

MessagingTimeout: Timed out waiting for a reply to message ID的更多相关文章

  1. OpenStack报错：MessagingTimeout: Timed out waiting for a reply to message ID

    L3.agent中出现大量消息超时错误,对网络的操作各种异常. 报错如下: -- :: ERROR neutron.agent.l3.agent [req-db9207e6--4f23-8c19-0d ...

  2. java.io.IOException: Timed out waiting 20000ms for a quorum of nodes to respond

    16-11-14 21:23:41,540 FATAL org.apache.hadoop.hdfs.server.namenode.FSEditLog: Error: starting log se ...

  3. timed out waiting for input: auto-logout

    The ssh "timed out waiting for input: auto-logout" messages is generated by ssh upon reach ...

  4. DHCP request error:Timed out waiting for dhcpcd to start【转】

    本文转载自:http://blog.csdn.net/zvivi521/article/details/9166899 [init.svc.dhcpcd_eth0]: [stopped] I/Serv ...

  5. Java连接ArtemisMQ，出现Timed out waiting to receive cluster topology. Group:null异常

    完整异常内容:org.springframework.jms.UncategorizedJmsException: Uncategorized exception occurred during JM ...

  6. telinit:Did not receive a reply.Possible causes include:the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired

    问题: Enabling /etc/fstab swaps: [ok]telinit:Did not receive a reply.Possible causes include:the remot ...

  7. Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired,

    Did not receive a reply. Possible causes include: the remote application did not send a reply, the m ...

  8. (adhoc) process launch failed: timed out waiting for app to launch

    I had a similar issue when trying to debug an App with Ad-Hoc provisioning... Check which provisioni ...

  9. Xcode Coule not launch "aaa" press launch failed:timed out waiting for app launch

    遇见这个问题 可能是 由于 runapp 的时候设置里面 设置为release了. 解决办法是:见图 build configuration 设置成 debug 状态就OK了. 要是上面的不行就试一下 ...

随机推荐

  1. BDE 升级到FireDAC

    BDE  Query Replace Str in files   by cnpack tools TQueryTFDQuery dmdb->qrypub->Open(sql); fdme ...

  2. 7.25 11figting！

    TEXT 76 Start of the long march 而今迈步从头越(陈继龙编译) Nov 16th 2006 | BEIJING AND HONG KONG From The Econom ...

  3. less gradient-vertical 方法的实现

    // Vertical gradient using CSS where possible, and base64-encoded SVG for IE9 (enables use of this i ...

  4. 迷你MVVM框架 avalonjs 1.3.1发布

    avalon1.3.1发布. interpolate支持注释节点做定界符,avalon.config({interpolate:["<!--","-->&qu ...

  5. python 画直方图

    import numpy as npimport matplotlib.pyplot as plt def sample_data(size,length=100): data=[] for i in ...

  6. ORA-01157:无法标识/锁定数据文件，ORA-01110：数据文件。。。

  7. 05-了解activiti目录结构

    数据库底层支持的23张表的增删改查 如果你不会用activiti的API,可以看一下开发文档 流程引擎ProcessEngines,最重要是这个玩意. libs就更重要了,我们使用一个框架主要是使用它 ...

  8. oracle返回最大值一条记录

    虽然网上例子很多,但是试过多种办法都无效,原代码出处: https://blog.csdn.net/qyshibb/article/details/73332075 这个例子简单有效 select p ...

  9. MD5加密算法原理及其应用

    MD5是一个安全的散列算法,输入两个不同的明文不会得到相同的输出值,根据输出值,不能得到原始的明文,即其过程不可逆:所以要解密MD5没有现成的算法,只能用穷举法,把可能出现的明文,用MD5算法散列之后 ...

  10. <!DOCTYPE html>的重要性！

    噩梦开始的源头:之前写html或者jsp页面,从来不注意doctype的声明,也不太明白doctype的作用. 直到最近碰到了一个非常奇葩的bug:某一个页面在IE7和8,Chrome,ff等下正常, ...