[ https://issues.apache.org/jira/browse/CLOUDSTACK-3108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13715061#comment-13715061 ]
Wei Zhou commented on CLOUDSTACK-3108: -------------------------------------- Shweta, It should work on Xenserver. Could you run this command on the hosts? If the value is 0 or "<unknown>", the diskkbsread/diskkbswrite is 0. for i in `xe vbd-list |grep '^uuid ( RO)' | awk -F \| 'BEGIN{FS=":"}{print $2}'`; do xe vbd-param-list uuid=$i | egrep 'write|read'; done; diskioread/diskiowrite are 0 as Xen/Vmware do not support them. > Disk related statistics of a VM always show 0 values > ----------------------------------------------------- > > Key: CLOUDSTACK-3108 > URL: https://issues.apache.org/jira/browse/CLOUDSTACK-3108 > Project: CloudStack > Issue Type: Bug > Security Level: Public(Anyone can view this level - this is the > default.) > Components: Storage Controller > Affects Versions: 4.2.0 > Environment: build: > CloudPlatform-4.2-117-rhel6.3.tar.gz > Reporter: shweta agarwal > Assignee: Wei Zhou > Priority: Critical > Fix For: 4.2.0 > > > Repro steps: > 1. Set global configuration value for storage.stas to 600 milliseconds or > other small value and restart Management server > 2. Create a VM > 4. Create Some data on a VM (create a data heavy file) > 5. Wait for storage collector thread to run > Bug: > Even after storage stats collector thread runs Disk Read, Disk write shows > values a zero. > Expectations: > Disk read , disk write stats for VM should show correct value. > I waited for several Stats collector thread to collect data but still value > in VM shows Zero > For example: > VM stats shows > API : > http://10.147.38.141:8080/client/api?command=listVirtualMachines&details=stats&id=c448201a-9fc5-4cc1-ab28-c8cd2a53594d&response=json&sessionkey=4xWeT9Rw4XpRnWMGa1yIqr2vYSA%3D&_=1371794494563 > Response: > { "listvirtualmachinesresponse" : { "count":1 ,"virtualmachine" : [ > {"id":"c448201a-9fc5-4cc1-ab28-c8cd2a53594d","name":"c448201a-9fc5-4cc1-ab28-c8cd2a53594d","account":"admin","domainid":"9df32920-d98f-11e2-95e7-0682fe000017","domain":"ROOT","created":"2013-06-20T18:16:16+0530","state":"Running","haenable":false,"zoneid":"0d3e68a9-4f66-4077-a934-6a07b7bde4d1","zonename":"xen","hostid":"897004e4-4eab-471a-88c6-0f9ad84386c0","hostname":"Rack1Pod1Host27","cpuused":"0%","networkkbsread":39873,"networkkbswrite":1336,"diskkbsread":0,"diskkbswrite":0,"diskioread":0,"diskiowrite":0,"guestosid":"9ea5e3d0-d98f-11e2-95e7-0682fe000017","securitygroup":[],"nic":[{"id":"832205d4-b9ed-4e35-93fe-25dfa51afe43","networkid":"4bda1bc0-8c1b-4368-8ee9-e7d32f842ca9","networkname":"vv","netmask":"255.255.255.0","gateway":"10.0.4.1","ipaddress":"10.0.4.237","isolationuri":"vlan://1041","broadcasturi":"vlan://1041","traffictype":"Guest","type":"Isolated","isdefault":false,"macaddress":"02:00:7a:18:00:03"},{"id":"6613398e-b652-41e7-8ca3-77f0d913acc0","networkid":"867ab04e-fae0-4e0d-aea0-c3e135273b1a","networkname":"tier1","netmask":"255.255.255.0","gateway":"10.0.3.1","ipaddress":"10.0.3.121","isolationuri":"vlan://1046","broadcasturi":"vlan://1046","traffictype":"Guest","type":"Isolated","isdefault":false,"macaddress":"02:00:40:00:00:01"}],"hypervisor":"XenServer","instancename":"i-2-8-VM","tags":[],"affinitygroup":[],"displayvm":true} > ] } } > Where as VM shows following file sizes > ls -ltr > -rw-r--r-- 1 root root 3965 Jun 20 18:30 ter > -rw-r--r-- 1 root root 3965 Jun 20 18:30 ter1 > -rw-r--r-- 1 root root 206180 Jun 20 18:31 ter4 > -rw-r--r-- 1 root root 206180 Jun 20 18:31 ter5 > -rw-r--r-- 1 root root 9071920 Jun 20 18:31 ter3 -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira