Can someone help me determine if these errors are normal or if this could
somehow be the cause? I've removed the last three columns for readability -
they were all zeros.
# column -t /proc/net/dev
Inter-| Receive | Transmit
face |bytes packets errs drop fifo frame compressed
multicast|bytes packets errs drop fifo
lo: 133093161 146045 0 0 0 0 0 0
133093161 146045 0 0 0
ens18: 166999724 256655 0 16 0 0 0 0
167638513 218267 0 0 0
The "errs" for ens18 are steadily increasing, but the "drop" column is
steady. It's also curious the errors on loopback would also be increasing?
Other ideas on how to troubleshoot this would be greatly appreciated.
Thanks,
Alex
On Wed, Dec 20, 2023 at 9:27 PM Alex <mysqlstud...@gmail.com> wrote:
> Hi,
>
> On Wed, Dec 20, 2023 at 11:03 AM Kevin Korb via rsync <
> rsync@lists.samba.org> wrote:
>
>> What is the error? I assume you know that with that syntax the
>> filelist.txt is local rather than remote.
>>
>
> Yes, I do know it refers to the list of local files.
>
> There is no error - it just hangs indefinitely until some timeout period.
> This is what it looks like on the remote side:
>
> $ ps ax|grep rsync
> 324075 ? Ss 0:00 rsync --server -vvvvlogDtpRe.LsfxCIvu .
> /var/tmp/one/
> 324094 ? S 0:00 rsync --server -vvvvlogDtpRe.LsfxCIvu .
> /var/tmp/one/
>
> On the local side, with a few -vvvv added to rsync, I see this:
>
> recv_file_list done
> get_local_name count=9 /var/tmp/one/
> generator starting pid=324075
> delta-transmission enabled
> recv_generator(config1.cf,0)
> config1.cf is uptodate
> send_files(0, config1.cf)
>
> then it just stalls until it eventually times out. However, if I remove
> any one of the nine files from the filelist, it completes normally.
>
> It actually also exhibits the same problem without a filelist at all - as
> long as I'm transferring multiple files, it fails. I suppose if I were
> syncing a directory with less than nine files, it might succeed, but local
> directory to any remote directory on this one server fails.
>
> This also isn't a disk space or inode problem or corrupt filesystem
> problem - the same command works from a different host to this one
> problematic host without a problem.
>
> I've also confirmed the open file limit is large enough on both sides:
>
> # ulimit -n
> 50000
>
> I've now spent hours and hours trying to isolate and troubleshoot this
> problem. It really feels like it's somehow related to the number of files
> being transferred, not the size of the files. If I break up a directory
> into multiple attempts, I can eventually transfer all the files (maybe 40
> in total), but trying to send all 40 files at once and none get transferred.
>
> It almost certainly has something to do with building the initial list of
> files. If that list is too large, the transfer fails, even if the majority
> of the files in the source are already in the destination.
>
> It also happens when I'm pushing the files to the destination or pulling
> them from the remote to local.
>
> Thanks,
> Alex
>
>
>
>
>
>
>
>>
>> On 12/20/23 09:50, Alex via rsync wrote:
>> > Hi, I've been using rsync on fedora over ssh to sync directories for
>> > decades, but suddenly having a problem with transferring multiple files
>> > at a time to one specific host using --files-from. I can't think of
>> what
>> > might have changed to have caused this. Using rsync to transfer a
>> single
>> > file to this problematic host works successfully. It appears to be
>> > related to the number of files in the --files-from filelist. More than
>> > nine and it stalls; less than nine and it finishes successfully. I'm
>> > using the same version of rsync on both sides.
>> >
>> > (Server) Protocol versions: remote=31, negotiated=31
>> > (Client) Protocol versions: remote=31, negotiated=31
>> >
>> > When running the following command, it appears to collect the list of
>> > files to be transferred, successfully makes the connection with the
>> > remote server, but then just stalls. Using strace on the remote side
>> > shows rsync appears to be waiting for data.
>> >
>> > rsync -avvvv --files-from=/etc/mail/filelist.txt -e 'ssh -i
>> > /root/keys/sync-key-v4' /etc/mail/tmp/ polaris:/var/tmp/one/
>> >
>> > sync-key-v4 is a passwordless ed25519 key, but I've tried a handful of
>> > other ed25519 keys.
>> >
>> > Could it be related to packet size or some kind of network disparity?
>> > It's not related to the size of the files, as I've tried large and
>> small
>> > and it doesn't matter - if the number of files exceeds 9, it fails.
>> >
>> >
>> >
>> >
>> >
>> >
>>
>> --
>> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,
>> Kevin Korb Phone: (407) 252-6853
>> Systems Administrator Internet:
>> FutureQuest, Inc. ke...@futurequest.net (work)
>> Orlando, Florida k...@sanitarium.net (personal)
>> Web page: https://sanitarium.net/
>> PGP public key available on web site.
>> ~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,-*~'`^`'~*-,._.,
>>
>> --
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>
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