Did you actually see each and every client starting the transfer (partclone window filling up with more text and figures)? If not then I expect those clients to have been to slow to join
I didn’t see them fill up with text, the assumption was based on my logs showing “Starting Transfer” and then Timeout Messages coming afterwards for multiple clients.
I forgot to mention something very important. The MaxWait you set in the FOG settings is only used for the very first partitions. Partition two, three and so on have a timeout of 10!
That’s interesting, I did notice that on the partition switch some of the devices came up with a “Clearing NFTS flag” line underneath the Partclone Screen where as some went straight through to partition two. Though on the partition switch the hosts that carried on deploying did within seconds, so I don’t think it reached the Max Wait time of 10 Minutes (I’m assuming 10 means Mins and not Secs)
About the switch and multicast stuff… This is a huge and a bit complex topic. Can’t give you an appropriate answer to that just now. Most switches handle multicast fairly well without config adjustment. The more different components are involved the higher the chance you need to manually adjust configs to make it work properly.
Okay! I don’t entirely understand how it’s all working in depth, I think some of the hosts in my environment might be having issues if the data needs to bounce through the switch, so in the future i’ll image all the hosts on a single switch each time to keep things simple.
Be aware that network equipment or the receiver may be droppingpackets because of a bandwidth which is too high. Try limiting itusing “max-bitrate”.
The receiver may also be dropping packets because it cannot write the data to disk fast enough. Use hdparm to optimize disk access onthe receiver. Try playing with the settings in /proc/sys/net/core/rmem_default and /proc/sys/net/core/rmem_max, i.e. setting them to a higher value.
I’ve taken a look at these files and they each contain a single value of “163840” without context. Not sure what this value relates to or what an acceptable value to change it to would be.
Could you link to the page you found this info at? I’m also not sure where the “Max-Bitrate” value is and if its on the page I don’t want to keep bothering you! :P
Really appreciate all the help you and the other devs / mods here take time to give. You lot do a great job, the best support with any piece of software I’ve ever had and its open source! haha.