Retype leaves open file handles
Bug #1630984 reported by
Oscar Kraemer
This bug report is a duplicate of:
Bug #1446682: cinder-volume keeps opening Ceph clients until the maximum number of opened files reached.
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This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Cinder |
New
|
Undecided
|
Unassigned | ||
Bug Description
Hi,
When I retype a volume from one backend host to another there will spawn about 250 new threads as well as open files that won't close after the retype is completed. The open files and threads spawns on the source machine. The volumes.log states "Retype volume completed successfully.".
Additionally: When I retype from a Ceph backend to the LVM host (iscsi) the amount of files that will be left open are in the tens of thousands but when retyping from LVM to Ceph it is in the hundreds.
Environment:
OS CentOS: 7.2
Openstack: Liberty,
Ceph: hammer 0.94.9
The LVM host:
Centos 6.7
Openstack: Liberty,
Ceph: hammer 0.94.9
| summary: |
- Retype leaves open fileshandless + Retype leaves open file handles |
Revision history for this message
| Oscar Kraemer (oscark) wrote | #1 |
Revision history for this message
| Kalle Happonen (kalle-happonen) wrote | #2 |
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I was asked to post the configuration. I can add that it seems like cinder never calls the fclose which caused problem for the whole Ceph cluster when I tried to retype a big volume. My understanding is that it wrote all the data to a single OSD.