[CLOUDSTACK-8680] problem parsing RabbitMQ events

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 4.5.1
• Security Level: Public (Anyone can view this level - this is the default.)
• Assignee: Unassigned
• Reporter: Yiping Zhang
• Created: 27/Jul/15 23:17
• Updated: 27/Jul/15 23:17

Description

RabbitMQ event message for VM.CREATE and VM.DESTROY events can't be parsed cleanly. Here is an example:

{

  "cmdInfo": "{\"response\":\"json\",\"id\":\"b780c229-7064-47e5-97d0-a8b4590b36b8\",\"sessionkey\":\"WY6E5WuM8SbqMw4bCumnVgGsgEQ\\u003d\",\"ctxDetails\":\"{\\\"com.cloud.vm.VirtualMachine\\\":\\\"b780c229-7064-47e5-97d0-a8b4590b36b8\\\"}\",\"cmdEventType\":\"VM.DESTROY\",\"ctxUserId\":\"2\",\"httpmethod\":\"GET\",\"_\":\"1438027779033\",\"uuid\":\"b780c229-7064-47e5-97d0-a8b4590b36b8\",\"ctxAccountId\":\"2\",\"ctxStartEventId\":\"6282\"}",

  "instanceType": "VirtualMachine",

  "instanceUuid": "b780c229-7064-47e5-97d0-a8b4590b36b8",

  "jobId": "61a62e5d-61ee-41eb-b947-0f8ef5d857c3",

  "status": "SUCCEEDED",

  "processStatus": "0",

  "commandEventType": "VM.DESTROY",

  "resultCode": "0",

  "command": "org.apache.cloudstack.api.command.admin.vm.DestroyVMCmdByAdmin",

  "jobResult": "org.apache.cloudstack.api.response.UserVmResponse/virtualmachine/{\"id\":\"b780c229-7064-47e5-97d0-a8b4590b36b8\",\"name\":\"yz-x1\",\"displayname\":\"yz-x1\",\"account\":\"admin\",\"domainid\":\"994ff03e-bb8f-11e4-b7d5-36d1d14da5e9\",\"domain\":\"ROOT\",\"created\":\"2015-07-27T12:01:12-0500\",\"state\":\"Destroyed\",\"haenable\":false,\"zoneid\":\"1b0b4859-7b8a-41dd-8522-4dbf24345509\",\"zonename\":\"sjlab\",\"templateid\":\"e6fa410f-4bf0-4b3c-9982-9d60e7ffc07e\",\"templatename\":\"Base\",\"templatedisplaytext\":\"Base with 32 GB root and cloud-init\",\"passwordenabled\":false,\"serviceofferingid\":\"11a5e901-bc78-45c6-8b81-a2a9e3530164\",\"serviceofferingname\":\"1CPU@1.0Ghz@1.5GB\",\"cpunumber\":1,\"cpuspeed\":1000,\"memory\":1536,\"cpuused\":\"0.56%\",\"networkkbsread\":0,\"networkkbswrite\":2,\"diskkbsread\":2670,\"diskkbswrite\":163,\"diskioread\":0,\"diskiowrite\":0,\"guestosid\":\"a0c75a5b-bb8f-11e4-b7d5-36d1d14da5e9\",\"rootdeviceid\":0,\"rootdevicetype\":\"ROOT\",\"securitygroup\":[{\"id\":\"ad13aa78-bb8f-11e4-b7d5-36d1d14da5e9\",\"name\":\"default\",\"description\":\"Default Security Group\",\"account\":\"admin\",\"ingressrule\":[],\"egressrule\":[],\"tags\":[]}],\"nic\":[{\"id\":\"1c87d7e1-f8c9-425e-809d-7edd1a30c3a6\",\"networkid\":\"abe603fe-1d8b-4b23-9aa2-0234f18de686\",\"networkname\":\"vlan106\",\"netmask\":\"255.255.255.0\",\"gateway\":\"10.0.106.1\",\"ipaddress\":\"10.0.106.170\",\"isolationuri\":\"vlan://106\",\"broadcasturi\":\"vlan://106\",\"traffictype\":\"Guest\",\"type\":\"Shared\",\"isdefault\":true,\"macaddress\":\"06:d9:2e:00:03:f6\"}],\"hypervisor\":\"XenServer\",\"instancename\":\"i-2-346-VM\",\"tags\":[],\"details\":{\"hypervisortoolsversion\":\"xenserver56\"},\"affinitygroup\":[],\"displayvm\":true,\"isdynamicallyscalable\":true,\"ostypeid\":206,\"jobid\":\"61a62e5d-61ee-41eb-b947-0f8ef5d857c3\",\"jobstatus\":0}",

  "account": "ad11bb05-bb8f-11e4-b7d5-36d1d14da5e9",

  "user": "ad129c91-bb8f-11e4-b7d5-36d1d14da5e9"

}

There are two problems for above example:

1. The nested data structures are not parsed properly. As you can see, values for both “cmdInfo” and “jobResult” are strings instead of nested hash. I have to make additional calls to JSON parser on those values to parse them.
2. The string "org.apache.cloudstack.api.response.UserVmResponse/virtualmachine/“ at the beginning of the value for “jobResult” makes this value invalid to be parsed as JSON object at all.