在0.96之前的版本中，hbase的meta信息通过-ROOT-表来查询，在0.96.0之后的版本中，移除了-ROOT-表，.meta.被重重命名为hbase:meta，并且其位置存储在zookeeper中。
# hbase shell
> scan 'hbase:meta', LIMIT=>1
TestTable,00000000000000000000183519,14 column=info:regioninfo, timestamp=1457515420191, value={ENCODED => fbc3f12f6e05daa4ec0b17e431c4f509, NAME => 'TestTab
57515419490.fbc3f12f6e05daa4ec0b17e431c le,00000000000000000000183519,1457515419490.fbc3f12f6e05daa4ec0b17e431c4f509.', STARTKEY => '000000000000000000001835
4f509. 19', ENDKEY => '00000000000000000000367087'}
TestTable,00000000000000000000183519,14 column=info:seqnumDuringOpen, timestamp=1461725865195, value=\x00\x00\x00\x00\x00\x00\x03\x1E
57515419490.fbc3f12f6e05daa4ec0b17e431c
4f509.
TestTable,00000000000000000000183519,14 column=info:server, timestamp=1461725865195, value=10-2-96-43:60020
57515419490.fbc3f12f6e05daa4ec0b17e431c
4f509.
TestTable,00000000000000000000183519,14 column=info:serverstartcode, timestamp=1461725865195, value=1461665925512
57515419490.fbc3f12f6e05daa4ec0b17e431c
4f509.
rowkey即为每个Region的Name，rowkey的格式为：tableName,regionStartKey,regionId.encodedRegionName，regionId通常是region创建的时间点。encodedRegionName是对RegionName中.前部分（即tableName,regionStartKey,regionId）的md5 hash。根据rowkey可以找到相应region在hdfs中的位置：/<hbaseRootDir>/<tableName>/<encodedRegionName>/<columnFamily>/<fileName>。fileName是基于Java内建的随机数生成器产生的任意数字。
每个rowkey在info列族有如下列：
info:regioninfo => contains serialized HRI for the default region replica info:server => contains hostname:port (in string form) for the server hosting the default regionInfo replica info:server_ => contains hostname:port (in string form) for the server hosting the regionInfo replica with replicaId info:serverstartcode => contains server start code (in binary long form) for the server hosting the default regionInfo replica info:serverstartcode_ => contains server start code (in binary long form) for the server hosting the regionInfo replica with replicaId info:seqnumDuringOpen => contains seqNum (in binary long form) for the region at the time the server opened the region with default replicaId info:seqnumDuringOpen_ => contains seqNum (in binary long form) for the region at the time the server opened the region with replicaId info:splitA => contains a serialized HRI for the first daughter region if the region is split info:splitB => contains a serialized HRI for the second daughter region if the region is split info:mergeA => contains a serialized HRI for the first parent region if the region is the result of a merge info:mergeB => contains a serialized HRI for the second parent region if the region is the result of a merge
一般而言，在hbase:meta表中，正常的region会有info:regioninfo、info:server、info:serverstartcode等列，info:regioninfo
info:regioninfo等如何产生？为什么只有reioninfo信息没其他信息。
如何修复？