For more information, I use ocata version. 2018년 10월 29일 (월) 오후 10:07, SeongSoo Cho <ppiya...@printf.kr>님이 작성:
> Hello, All > > I have a terrible problem with object server. > Here is the case. > 1. User upload an object to proxy-server > 2. Proxy server try to connect with object-server > 3. If one of object-server is slow to respond, proxy-server is waiting for > response. > 3.1 While waiting for response, proxy-server can't do anything > 4. So, The response of client request will be delayed. > > In my opinion, this code seems to be a problem > ( > https://github.com/openstack/swift/blob/stable/rocky/swift/proxy/controllers/obj.py#L1734 > ) > > ``` > with ResponseTimeout(node_timeout): > resp = conn.getexpect() > ``` > > If node_timeout's value is 3 and object-server respond after 2 seconds, > proxy-server wait 2 seconds. > > Because proxy-server wait for the above response, the execution of the > following code is delayed. > ( > https://github.com/openstack/swift/blob/stable/rocky/swift/proxy/controllers/obj.py#L627 > ) > > ``` > for node in nodes: > try: > putter = self._make_putter(node, part, req, headers) > self.app.set_node_timing(node, putter.connect_duration) > return putter > ``` > > This problem occurs when i do a ring rebalance. > When object-replicator delete a partition directory that are no longer > mine, the disk becomes very busy (Because of xfsaild daemon) > Because the disk are busy, object-server can't create diskfile during PUT > operation. > > Is there anyone who is having problems like me? > How can I solve this problem? > > I need everyone's help. > Thanks. > > Best Regards > SeongSoo Cho > > ------ > SeongSoo Cho (South Korea) > >
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