<br>
<br>
<br>
<br>
<hr noshade>
<br>
<br>
<br><tt><font size=2><br>
>> I add some private function in dht_create() as bellow.<br>
>> <br>
>> When current pwd is not "/",everything is ok,otherwise,syncop_getxattr
will<br>
>> be blocked(In target subvol,"server3_3_getxatt" did
not run ).<br>
>> <br>
>> <br>
>> dict_t *xattr = NULL;<br>
>> loc_t loc = {0, };<br>
>> memset (loc.gfid, 0, 16);<br>
>> loc.gfid[15] = 1;<br>
>> ret = syncop_getxattr (subvol, &loc, &xattr,GF_XATTR_PATHINFO_KEY);<br>
>Could you post your private patch in this thread? It would be useful
to <br>
>discuss the specifics of why glusterfs is blocked.<br>
<br>
>syncop_XXX functions should be called only from threads other than<br>
>threads executing event_dispatch_epoll_handler. You could attach gdb
to your hung<br>
>process and confirm that the syncop_getxattr call is executing on a
thread that has<br>
>event_dispatch_epoll_handler early on its stack.<br>
<br>
>What is the goal of your private patch? If I may guess, are you trying<br>
>to create files on a brick that is on the same machine as your mount
point,<br>
>when possible? If so, DHT has Non-uniform file allocation policy (NUFA)
analagous<br>
>to NUMA in memory architectures.<br>
>For more information, see </font></tt><a href="https://github.com/gluster/glusterfs/blob/master/doc/admin-guide/en-US/markdown/admin_managing_volumes.md#non-uniform-file-allocation"><tt><font size=2>https://github.com/gluster/glusterfs/blob/master/doc/admin-guide/en-US/markdown/admin_managing_volumes.md#non-uniform-file-allocation</font></tt></a><tt><font size=2><br>
<br>
HTH,<br>
KP<br>
<br>
We want to place file on any subvol other than local ,in the contrary of
NUFAĦ£</font></tt>
<br>
<br><tt><font size=2>From GDB ,syncop_getxattr is on the same backtrace
of "event_dispatch_epoll_handler" which runing in main thread.So
any response can not come in ?</font></tt>
<br>
<br><tt><font size=2>Great thanks!</font></tt>
<br>
<br><tt><font size=2>YB</font></tt>
<br>
<br><tt><font size=2><br>
</font></tt>
<br>
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