Bug #729

ntfsclone uses excessive I/O and CPU utilization

Added by Vangelis Koukis almost 11 years ago. Updated almost 11 years ago.

Status:Closed Start date:07/05/2011
Priority:High Due date:
Assignee:Nikos Skalkotos % Done:

0%

Category:Cyclades Images Spent time: -
Target version:v0.5.1

Description

For some reason, running ntfclone causes excessive I/O and CPU utilization
and brings the machine to its knees.

Need to investigate why.

Speculation: ntfsclone writes completion percentages to stdout continuously.
stdout gets redirected to a file under /var/log/ganeti/os/ causing excessive I/O.

Investigate possible use of a '--quiet' flag.

History

#1 Updated by Vangelis Koukis almost 11 years ago

  • Status changed from Assigned to Closed

This has been patched temporarily to redirect to /dev/null, to reduce the load incurred by the verbose progress reporting, committed to the win-support branch of the local Ganeti Instance Image repository.

For a long-term solution, a patch enabling use of --quiet has been developed, and will be pushed upstream.
Closing ticket.

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