Re: block access token

2013-11-19 Thread lei liu
Hi Luke, Can I set "dfs.block.access.token.lifetime" to two minutes? 2013/11/18 lei liu > Thanks Luke for your reply. > > The life time of block access token is ten hours, whether we should > change two minutes? I think the shorter the life time of the token, token less > likely to be stol

Re: block access token

2013-11-18 Thread lei liu
Thanks Luke for your reply. The life time of block access token is ten hours, whether we should change two minutes? I think the shorter the life time of the token, token less likely to be stolen. 2013/11/14 Luke Lu > Block access token is only valid for a short period of time, as the NN/DN >

Re: block access token

2013-11-13 Thread Luke Lu
Block access token is only valid for a short period of time, as the NN/DN shared secrets are rolled periodically. As long as you cannot steal block token easily (besides using zero-day bugs), there is really no security hole here (by design). If you know of a way to steal block tokens without root