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* get_rand_in_mds

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git-svn-id: https://ceph.svn.sf.net/svnroot/ceph@1494 29311d96-e01e-0410-9327-a35deaab8ce9
This commit is contained in:
sageweil 2007-07-13 13:43:00 +00:00
parent ee36a38e60
commit d1436d2b5a
2 changed files with 14 additions and 1 deletions
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3
trunk/ceph/client/Client.cc
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@ -513,7 +513,8 @@ int Client::choose_target_mds(MClientRequest *req)
// pick mds
if (!diri || g_conf.client_use_random_mds) {
// no root info, pick a random MDS
mds = rand() % mdsmap->get_num_mds();
mds = mdsmap->get_random_in_mds();
if (mds < 0) mds = 0;
} else {
if (req->auth_is_best()) {
// pick the actual auth (as best we can)

12
trunk/ceph/mds/MDSMap.h
View File

@ -186,6 +186,18 @@ class MDSMap {
s.insert(p->first);
}
int get_random_in_mds() {
vector<int> v;
for (map<int,int>::const_iterator p = mds_state.begin();
p != mds_state.end();
p++)
if (p->second > 0) v.push_back(p->first);
if (v.empty())
return -1;
else
return v[rand() % v.size()];
}
// mds states
bool is_down(int m) { return is_dne(m) || is_stopped(m) || is_failed(m); }