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HBase >> mail # user >> [Question: replication] why only one regionserver is used during replication? 0.94.9


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Re: [Question: replication] why only one regionserver is used during replication? 0.94.9
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SUMMARY:Re: [Question: replication] why only one regionserver is used durin
 g replication? 0.94.9
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DESCRIPTION:J-D\, thanks for the tip.\n\n\nOn Tue\, Aug 27\, 2013 at 11:40
 AM\, Jean-Daniel Cryans <[EMAIL PROTECTED]>wrote:\n\n> Region servers re
 plicate data written to them\, so look at how your regions\n> are distribu
 ted.\n>\n> J-D\n>\n>\n> On Tue\, Aug 27\, 2013 at 11:29 AM\, Demai Ni <nid
 [EMAIL PROTECTED]> wrote:\n>\n> > hi\, guys\,\n> >\n> > I am using hbase 0.94.
 9. And setup replication from a 4-nodes master(3\n> > regserver) to a 3-no
 des slave(2 regserver).\n> >\n> > I can tell that all source regservers  c
 an successfully replicate data.\n> > However\, it seems for each particula
 r table\, only one regserver will\n> handle\n> > its replication at each g
 iven table.\n> >\n> > For example\, I am using YCSB to load 1\,000\,000 ro
 ws with workloada\, with\n> 16\n> > threads. During the load period\, I lo
 oked at the ageOfLastShippedOp and\n> > sizeOfLogQueue. I can tell one of
 the regserver from Master is doing the\n> > replication. While values of b
 oth age and sizeOfLog are growing\, another\n> > two regserver doesn't com
 e into help.\n> >\n> > So does that mean: for each table and process\, onl
 y one regionserver will\n> > do the replication regardless how long the qu
 eue is? Or did I miss some\n> > setup configuration?\n> >\n> > Thanks.\n>
 >\n> > Demai\n> >\n>
DTSTAMP:20130827T231318Z
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