bq. if cell A is updated after cell B, is it guaranteed that the time stamp of cell A is always bigger than the time stamp of cell B
As you mentioned, machines might be out of sync on time, the above may not always be true. On Fri, Mar 14, 2014 at 1:45 PM, S. Zhou <[email protected]> wrote: > Here is what I am trying to figure out: in the same table, if cell A is > updated after cell B, is it guaranteed that the time stamp of cell A is > always bigger than the time stamp of cell B, even cell A and cell B could > be stored on different machines (therefore these two machines might out of > sync on time)? > > The reason I am asking this question is: I want to use time stamp to order > the updates by time. These updates are issued from multiple machines. I was > thinking to use global counter (stored in a separated HBase table) but I > guess that counter table might become a hot spot since each update needs to > update this table. > > My general problem is: I want to sort the updates stored in Hbase from > multiple machines. Please let me know if you have good thoughts. > > Thanks a lot > Senqiang >
