hi, i observe some weirdness in rsync file transfer i cannot explain.
i'm transferring data from 2 freenas storages to a linux vm with zfsonlinux. "fnask" is older freenas with rsync 3.1.1 running in daemon mode, freenas-bnkw is more recent with rsync 3.1.2, also daemon-mode. on the linux vm where the data is being pulled from the 2 freenas boxes, i look onto io bandwidth being used with "iotop -a". transfer from freenas-bnkw storage is much much slower then from fnask storage. why can i see two rsync processes transferring data from "fnask" but i see only one rsync process with "freenas-bnkw" where the parent process is transferring nothing ? is there a difference in how this is being handled between 3.1.1 and 3.1.2 on the remote side ? is this the reason for the slowness ? regards roland Total DISK READ : 278.72 M/s | Total DISK WRITE : 0.00 B/s Actual DISK READ: 97.09 M/s | Actual DISK WRITE: 0.00 B/s TID PRIO USER DISK READ> DISK WRITE SWAPIN IO COMMAND 32497 be/4 root 261.41 G 0.00 B 0.00 % 12.87 % rsync -av --inplace fnask::backupall_S2V2_xen-sr-rpkn01-nfs/ . 32498 be/4 root 200.56 G 12.88 G 0.00 % 21.41 % rsync -av --inplace fnask::backupall_S2V2_xen-sr-rpkn01-nfs/ . 24005 be/4 root 81.52 G 12.34 G 0.00 % 46.80 % rsync -av --inplace freenas-bnkw::backupall_zfspool_sas_seagate/sr_rpkn02/ . 3599 be/0 root 10.93 G 0.00 B 0.00 % 0.00 % [z_rd_int] 3604 be/0 root 10.84 G 0.00 B 0.00 % 0.00 % [z_rd_int] 3605 be/0 root 10.81 G 0.00 B 0.00 % 0.00 % [z_rd_int] ├─screen,14590 │ └─bash,14591 │ └─rsync,32497 -av --inplace fnask::backupall_S2V2_xen-sr-rpkn01-nfs/ . │ └─rsync,32498 -av --inplace fnask::backupall_S2V2_xen-sr-rpkn01-nfs/ . ├─screen,32261 │ └─bash,32262 │ └─rsync,24004 -av --inplace freenas-bnkw::backupall_zfspool_sas_seagate/sr_rpkn02/ . │ └─rsync,24005 -av --inplace freenas-bnkw::backupall_zfspool_sas_seagate/sr_rpkn02/ . -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
