Mahadev Konar wrote:
Hi Thomas,
Here is what would happen in the scenario you mentioned.
Great - thanks Mahadev.
Not to drag this on more than necessary, please bear with me for one
more example of 'amnesia' that comes to mind. I have a set of ZooKeeper
servers A, B, C.
- C is currently no
Thomas,
in the scenario you give you have two simultaneous failures with 3 nodes, so it
will not recover correctly. A is failed because it is not up. B has failed
because it lost all its data.
it would be good for ZooKeeper to not come up in that scenario. perhaps what we
need is something si
Just as a supporting note, from what I read, to support n simultaneous
failures we need 2n+1 nodes. In this case, we need 5 nodes to operate
correctly. Might be a good idea to capture this formula and if more than
n failures occur, write the appropriate flags which can then be used for
the right re
Thanks for all the responses.
Benjamin Reed wrote:
Thomas,
in the scenario you give you have two simultaneous failures with 3 nodes, so it
will not recover correctly. A is failed because it is not up. B has failed
because it lost all its data.
it would be good for ZooKeeper to not come up in
