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Merge pull request #9314 from xiexingguo/xxg-wip-fix-radosclient

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RadosClient: reduce cpu burning; fix message leak

Reviewed-by: Sage Weil <sage@redhat.com>
This commit is contained in:
Yuri Weinstein 2016-06-08 07:21:58 -07:00
commit 870fd846d8
3 changed files with 15 additions and 18 deletions
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13
src/librados/IoCtxImpl.cc
View File

@ -190,8 +190,7 @@ struct C_aio_notify_Ack : public Context {
librados::IoCtxImpl::IoCtxImpl() :
ref_cnt(0), client(NULL), poolid(0), assert_ver(0), last_objver(0),
notify_timeout(30), aio_write_list_lock("librados::IoCtxImpl::aio_write_list_lock"),
aio_write_seq(0), cached_pool_names_lock("librados::IoCtxImpl::cached_pool_names_lock"),
objecter(NULL)
aio_write_seq(0), objecter(NULL)
{
}
@ -201,8 +200,7 @@ librados::IoCtxImpl::IoCtxImpl(RadosClient *c, Objecter *objecter,
assert_ver(0), last_objver(0),
notify_timeout(c->cct->_conf->client_notify_timeout),
oloc(poolid), aio_write_list_lock("librados::IoCtxImpl::aio_write_list_lock"),
aio_write_seq(0), cached_pool_names_lock("librados::IoCtxImpl::cached_pool_names_lock"),
objecter(objecter)
aio_write_seq(0), objecter(objecter)
{
}
@ -323,12 +321,7 @@ const string& librados::IoCtxImpl::get_cached_pool_name()
std::string pn;
client->pool_get_name(get_id(), &pn);
Mutex::Locker l(cached_pool_names_lock);
if (cached_pool_names.empty() || cached_pool_names.back() != pn)
cached_pool_names.push_back(pn);
return cached_pool_names.back();
return pn;
}
// SNAPS

3
src/librados/IoCtxImpl.h
View File

@ -46,9 +46,6 @@ struct librados::IoCtxImpl {
xlist<AioCompletionImpl*> aio_write_list;
map<ceph_tid_t, std::list<AioCompletionImpl*> > aio_write_waiters;
Mutex cached_pool_names_lock;
std::list<std::string> cached_pool_names;
Objecter *objecter;
IoCtxImpl();

17
src/librados/RadosClient.cc
View File

@ -490,6 +490,7 @@ bool librados::RadosClient::_dispatch(Message *m)
break;
case CEPH_MSG_MDS_MAP:
m->put();
break;
case MSG_LOG:
@ -526,13 +527,21 @@ int librados::RadosClient::wait_for_osdmap()
if (cct->_conf->rados_mon_op_timeout > 0)
timeout.set_from_double(cct->_conf->rados_mon_op_timeout);
bool wait_forever = false;
if (timeout.is_zero()) {
// we'll going to wait forever, but wake up every 1 seconds,
// e.g., to avoid cpu burning.
wait_forever = true;
timeout = utime_t(1, 0);
}
if (objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)) == 0) {
ldout(cct, 10) << __func__ << " waiting" << dendl;
utime_t start = ceph_clock_now(cct);
while (objecter->with_osdmap(std::mem_fn(&OSDMap::get_epoch)) == 0) {
cond.WaitInterval(cct, lock, timeout);
utime_t elapsed = ceph_clock_now(cct) - start;
if (!timeout.is_zero() && elapsed > timeout) {
if (!wait_forever && elapsed > timeout) {
lderr(cct) << "timed out waiting for first osdmap from monitors"
<< dendl;
return -ETIMEDOUT;
@ -848,8 +857,7 @@ int librados::RadosClient::osd_command(int osd, vector<string>& cmd,
int r = objecter->osd_command(osd, cmd, inbl, &tid, poutbl, prs,
new C_SafeCond(&mylock, &cond, &done, &ret));
lock.Unlock();
if (r != 0)
return r;
assert(r == 0);
mylock.Lock();
while (!done)
cond.Wait(mylock);
@ -870,8 +878,7 @@ int librados::RadosClient::pg_command(pg_t pgid, vector<string>& cmd,
int r = objecter->pg_command(pgid, cmd, inbl, &tid, poutbl, prs,
new C_SafeCond(&mylock, &cond, &done, &ret));
lock.Unlock();
if (r != 0)
return r;
assert(r == 0);
mylock.Lock();
while (!done)
cond.Wait(mylock);