Thanks for your help,

Paul Bijnens wrote:

Moliere Christian wrote:

Here it is log of strace with gtar process :

write(1, "./bac2002/www/corr/arbo/gabarits"..., 57) = 57
write(1, "./bac2002/www/corr/arbo/gabarits"..., 60) = 60
write(1, "./bac2002/www/corr/arbo/gabarits"..., 58) = 58
read(0, "tmargin=\"0\" topmargin=\"0\" margin"..., 10240) = 8192
read(0, "r: #000099;}\nA.BACK {text-decora"..., 2048) = 2048
write(1, "./bac2002/www/corr/arbo/gabarits"..., 64

it is blocked like that

It seems to be blocked while writing to the index process (fd 1).
Have a look in /tmp/amanda.datestamp.debug and near the end
of the file, there is something like:

sendbackup: time 0.160: started index creator: "tar -tf - 2>/dev/null | sed -e 's/^\.//'"

Is there an error message in the neighborhood?

Now we have to find out if that pipe is still working as it should.
Is the tar and sed running?
Sed writes it's output over a tcp socket to the server.
There, dumper accepts the connection, and continues the pipe with a
gzip, which writes it into the (temporary) indexfile.

Somewhere along that pipe, there is something blocking...

With strace etc, try to find for each process where it is blocking
(start at the end: gzip that writes into the temporary indexfile).

To see the index written over the network, you can tcpdump traffic

between that host and client using port that you find /tmp/sendbackup.datestamp.debug near the beginning:

sendbackup: try_socksize: send buffer size is 65536

sendbackup: time 0.001: stream_server: waiting for connection: 0.0.0.0.4840 sendbackup: time 0.001: stream_server: waiting for connection: 0.0.0.0.4841 sendbackup: time 0.001: stream_server: waiting for connection: 0.0.0.0.4842

sendbackup: time 0.002: waiting for connect on 4840, then 4841, then 4842

sendbackup: time 0.018: stream_accept: connection from 192.168.200.45.4843 sendbackup: time 0.019: stream_accept: connection from 192.168.200.45.4844 sendbackup: time 0.019: stream_accept: connection from 192.168.200.45.4845

sendbackup: time 0.019: got all connections

The third connection is the port that sends the index to the server.
In this case port 4845.
with tcpdump, the syntax becomes:
tcpdump host yourhost and host yourclient and port 4845

--


Sincerely,
Cordialement,

Christian MOLIERE

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