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From Matheus Fontes <math...@ghz.com.br>
Subject XEN scheduled snapshots many processes
Date Tue, 18 Jun 2019 02:21:44 GMT
Hi,
We’re using Xenserver 7.0 as Hypervisor and Pre-Setup storage (lvm over ScaleIO).
I can see the number of processes increasing day by day in our Xenserver hosts.

I don’t know if it is expected but on each snapshot scheduled xenserver creates new processes.
For each lv created kernel show up 2 processes (bioset and kdmflush).

[root@xen4 ~]# ps ax | grep bioset | wc -l
1728
[root@xen4 ~]# ps ax | grep kdmflush | wc -l
1727
[root@xen4 ~]# dmsetup info -c | wc -l
1727

[root@xen4 ~]# dmsetup info -c
Name                                                                                     
            Maj Min  Stat Open Targ Event  UUID
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--7c73f1a3--50b9--4d1d--9f67--53c19abc7c68
253 1711 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0uv3WZVv8CAZVyAEL3UWGra2n41jimr9k
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--e55873ce--0631--4768--b431--4ba74091293a
253 1668 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0bPc0Bm4qq3uAQXAQjNC2cGDl00JKY2Pz
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--20b99af9--3584--4a30--a6c5--5c32a53f114d
253 1674 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0g8ZObr3z5KMEPxji98cxXI3OGw0xEIoL
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--d885da77--58ff--4494--a227--2991e12c6740
253 1389 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0Jp2PYfUwFHCOqcoRZsaN99tsrAdQdQke
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--e6325c7b--b8b8--4e69--9b6a--f8b998ddd710
253 1336 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X072eGJJoJ89Z2azCl1bWmNI4DDVQkelmq
VG_XenStorage--a622cc0c--d875--bcb0--518c--6d4cc82397c0-VHD--7520f9d5--55fb--4391--bd34--f83bd3f5f90a
253 1323 L--w    0    1      0 LVM-HUTMQmzNcjBTkp02u7Yrl586mO3WGTvCLIsQhUJ2a5Pz6FtY3pY10wkiKZUfn2Ek
VG_XenStorage--a622cc0c--d875--bcb0--518c--6d4cc82397c0-VHD--7b884d7d--5132--4fff--8fe9--9980602df6d6
253 1292 L--w    0    1      0 LVM-HUTMQmzNcjBTkp02u7Yrl586mO3WGTvCVWByLlQ35Np17i65KrINavgzJcpkWqS2
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--4d693681--dc6b--45aa--861d--3cb897cb395c
253 1168 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0yfKrMoR8xS4P5wvEX2NIGJcSpJOnUSbt
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--7ed92fb1--d960--4e13--b171--4297c6175468
253 1219 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0IK3nhs2QwmR9O0gSzkwKdzvMdgIJCPYs
VG_XenStorage--7272653b--0ba2--e4cb--028d--d9899e0dfa55-VHD--a9294ae5--5f56--4e70--b289--d454f59b1473
253 1135 L--w    0    1      0 LVM-Un8sqRvwx9kA8p1WHH8ta5KiBNU4P7X0824I07QBaiidCxrsQ0UZ9jXSAdiVSqdc
VG_XenStorage--a622cc0c--d875--bcb0--518c--6d4cc82397c0-VHD--263364aa--ef51--491b--a946--3d19b3b24a50
253  120 L--r    1    2      0 LVM-HUTMQmzNcjBTkp02u7Yrl586mO3WGTvC9TzjzywqXJe80ln5sIHYFEHbUmzWsfSn
……….



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