cam-bpd-ui pod在CAM全新安装后无法成功启动

Question

在ICP上全新安装CAM 2.1.0.2后，运行以下命令：

kubectl -n services get pods

我注意到"cam-bpd-ui“pod没有启动。因此，我无法登录到Process Designer UI，并且收到错误："Readiness probe failed: HTTP probe failed with statuscode: 404".

根据ICP概述窗格，它正在运行并可用。然而，我在日志中看到了这一点

 "[Warning] Failed to load slave replication state from table mysql.gtid_slave_pos: 1146: Table 'mysql.gtid_slave_pos' doesn't exist
Version: '10.1.16-MariaDB-1~jessie'  socket: '/var/run/mysqld/mysqld.sock'  port: 3306  mariadb.org binary distribution
2018-04-24 16:15:52 140411194034112 [Note] mysqld: ready for connections."

当检查cam-bpd-ui pod中的事件时，我们看到以下内容：

kubectl describe pod cam-bpd-ui-687764b5fc-qxjnp -n services
Name:           cam-bpd-ui-687764b5fc-qxjnp
Namespace:      services

..。

Events:
  Type     Reason                 Age                 From                     Message
  ----     ------                 ----                ----                     -------
  Normal   Scheduled              27m                 default-scheduler        Successfully assigned cam-bpd-ui-687764b5fc-qxjnp to 10.190.155.237
  Normal   SuccessfulMountVolume  27m                 kubelet, 10.190.155.237  MountVolume.SetUp succeeded for volume "default-token-c8nq4"
  Normal   SuccessfulMountVolume  27m                 kubelet, 10.190.155.237  MountVolume.SetUp succeeded for volume "cam-logs-pv"
  Normal   SuccessfulMountVolume  27m                 kubelet, 10.190.155.237  MountVolume.SetUp succeeded for volume "cam-bpd-appdata-pv"
  Normal   Pulled                 27m                 kubelet, 10.190.155.237  Container image "icp-dev.watsonplatform.net:8500/services/icam-busybox:2.1.0.2-x86_64" already present on machine
  Normal   Created                27m                 kubelet, 10.190.155.237  Created container
  Normal   Pulled                 27m                 kubelet, 10.190.155.237  Container image "icp-dev.watsonplatform.net:8500/services/icam-bpd-ui:2.1.0.2-x86_64" already present on machine
  Normal   Started                27m                 kubelet, 10.190.155.237  Started container
  Normal   Created                27m                 kubelet, 10.190.155.237  Created container
  Normal   Started                27m                 kubelet, 10.190.155.237  Started container
  Warning  Unhealthy              26m (x2 over 26m)   kubelet, 10.190.155.237  Readiness probe failed: Get http://10.1.45.36:8080/landscaper/login: net/http: request canceled (Client.Timeout exceeded while awaiting headers)
  Warning  BackOff                12m (x3 over 12m)   kubelet, 10.190.155.237  Back-off restarting failed container
  Warning  Unhealthy              2m (x129 over 26m)  kubelet, 10.190.155.237  Readiness probe failed: HTTP probe failed with statuscode: 404 

Answer 1

流程设计器(BPD)需要连接到mariadb，以便它可以填充。您需要100%确定数据库是否正常工作。如果不是，bpd将不会为您返回登录页面。

一些提示：

1)如果您有NFS，请确保/etc/exports具有/export *(rw、insecure、no_subtree_check、async、no_root_squash)

有关no_root_squash的更多详细信息，请访问此处的链接：https://www.digitalocean.com/community/tutorials/how-to-set-up-an-nfs-mount-on-ubuntu-16-04

作为解决方法，您可以执行以下操作：

您可以设置自己的数据库并进行配置，以便BPD使用它。详细信息可在此处找到：

https://www.ibm.com/support/knowledgecenter/SS4GSP_6.2.7/com.ibm.edt.doc/topics/install_database_mysql_bds.html