-Re: hbase regionserver fail over -- how long it will take?
Demai Ni 2013-09-21, 04:02
Thanks a lot. I will look into it
Demai on the run
On Sep 20, 2013, at 8:44 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> bq. another regionserver, which contain another copy of the data, will
> pick up.
> Replica of data (HFile and WAL) is stored on data nodes.
> In http://hbase.apache.org/book.html, take a look at 184.108.40.206. Failover
> and 9.7.3. Region-RegionServer Locality
> On Fri, Sep 20, 2013 at 4:14 PM, Demai Ni <[EMAIL PROTECTED]> wrote:
>> hi, folks,
>> My understanding of hbase within cluster highavailability is to keep 3 copy
>> of data(dfs.replication, default is 3). Whenever a region server
>> fails(offlline), another regionserver, which contain another copy of the
>> data, will pick up.
>> Is my understanding correct? In that case, usually how long will take the
>> failover to complete, so that the data will be available?
>> Can I get a couple pointers? or on-line doc? many thanks