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Description of problem:
When pushing a map from the server to the slaves, yppush always times out with
"Callback timed out", even though the "Status received from ypxfr" says
"Success" (visible with args -vv to yppush).

Version-Release number of selected component (if applicable): 2.2-3


How reproducible:
Always

Steps to Reproduce:
1. set up two ypservers with ypserv-2.2-3 and ypinit both of them
2. check that normal transfers are working
3. run slave ypserv with --debug (not neccessary to reproduce but interesting)
4. on the master: /usr/sbin/yppush -vv passwd.byuid (or any other map)
   (or set NOPUSH=false in /var/yp/Makefile on the master and use 'make')

	

Actual Results:  I'm adding -h here since I have more slaves, but this doesn't
affect the behaviour:

root@ypmaster# /usr/sbin/yppush -h ypslave.myplace.net -vv passwd.byuid
Start new child (1)yppush_foreach: host=ypslave.myplace.net

ypslave.myplace.net has been called.
        ->target: ypslave.myplace.net
        ->domain: myplace.net
        ->map: passwd.byuid
        ->tarnsid: 2233
        ->prog: 1073741824
        ->master: ypmaster.myplace.net
        ->ordernum: 1017613849
yppush_xfrrespprog_1
yppushproc_xfrresp_1_svc
Status received from ypxfr on ypslave.myplace.net:
        Transfer not done: Master's version not newer
Running Children: 1
Running Children: 1
Running Children: 1
Running Children: 1
Running Children: 1
Running Children: 1
Running Children: 1
Running Children: 1
passwd.byuid->ypslave.myplace.net: Callback timed out
Child 1 exists
Running Children: 0
all done (0 running childs)

After the (immediate) response from ypslaves's ypxfr yppush just sits there and
waits until it times out. This takes a whole minute per host if you don't fiddle
with -t and -p options to yppush.

Additional info:

It does _not_ depend on whether the maps have changed or not. If they have been
changed, the output is basically the same, only does ypxfr respond with
'Transfer done: Success' instead of 'Transfer not done: Master's version not
newer'. yppush times out after waiting for its children just the same.

Using ypxfrd doesn't seem to make any difference.

The maps _are_ transfered, but the timeout-warning is somewhat misleading,
annoying and scary (since we're dealing with auth-data).