cloudstack-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "mrunalini (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CLOUDSTACK-9741) Simultaneous snapshots for detached volume
Date Mon, 16 Jan 2017 10:29:26 GMT

     [ https://issues.apache.org/jira/browse/CLOUDSTACK-9741?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

mrunalini updated CLOUDSTACK-9741:
----------------------------------
    Description: 

A detached volume in VMware( I coud confirm that the issue affects XenServer as well in lab
repro) fails to create one of the snapshots if it there are two scheduled snapshots at the
same time for the same volume. One of that goes to Allocated state.
In Hoopa we have introduced a new feature for allowing simultaneous snapshots for volumes
which are "associated with a VM".
 I could notice that any combination of weekly,daily and hourly simultaneous snapshot creation
on a detached volume results one of the snapshots in Allocated state forever.




  was:
==============
KDDI has reported an issue where a detached volume in VMware( I coud confirm that the issue
affects XenServer as well in lab repro) fails to create one of the snapshots if it there are
two scheduled snapshots at the same time for the same volume. One of that goes to Allocated
state.
In Hoopa we have introduced a new feature for allowing simultaneous snapshots for volumes
which are "associated with a VM".
Support has already communicated to KDDI that simultaneous snapshots on a volume is not supported
in the version they are using which is 4.3.0.2, or rather it is a limitation. KDDI is concerned
that this is not documented.
Before having further discussions with KDDI, I have reproduced the issue lab with ACP 4.3.0.2
+ XenServer. I could notice that any combination of weekly,daily and hourly simultaneous snapshot
creation on a detached volume results one of the snapshots in Allocated state forever.
It might be possibly to have the same result by executing the manual snapshots at the same
time.I would like to know the following:
1. Is this a limitation in ACP? Please share the details. 
2. Does it have any dependency on hypervisor?
3. My repro of simultaneous snapshots for an attached volume in a version earlier to Hoopa
did work, what is the improvement in Hoopa?
I have the repro setup,DEBUG as well as TRACE logs available.
http://10.112.6.37:8080/client/
ACP: admin/password
SSH /MYSQL: root/password
logs and DB: /root/kddi-snapshot-issue



> Simultaneous snapshots for detached volume
> ------------------------------------------
>
>                 Key: CLOUDSTACK-9741
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9741
>             Project: CloudStack
>          Issue Type: Bug
>      Security Level: Public(Anyone can view this level - this is the default.) 
>            Reporter: mrunalini
>
> A detached volume in VMware( I coud confirm that the issue affects XenServer as well
in lab repro) fails to create one of the snapshots if it there are two scheduled snapshots
at the same time for the same volume. One of that goes to Allocated state.
> In Hoopa we have introduced a new feature for allowing simultaneous snapshots for volumes
which are "associated with a VM".
>  I could notice that any combination of weekly,daily and hourly simultaneous snapshot
creation on a detached volume results one of the snapshots in Allocated state forever.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message