一般发生在长期使用hbase，后面再安装之后直接使用hbase shell 想要进入hbase界面，却没有启动而导致的。
[root@master local]# hbase shell
SLF4J: Class path contains multiple SLF4J bindings.SLF4J: Found binding in [jar:file:/usr/local/hbase/lib/slf4j-log4j12-1.7.!/org/slf4j/impl/]
SLF4J: Found binding in [jar:file:/usr/local/hadoop2/share/hadoop/common/lib/slf4j-log4j12-1.7.!/org/slf4j/impl/]
SLF4J: See http:///#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org..Log4jLoggerFactory]
2015-05-17 23:11:37,482 ERROR [main] : ZooKeeper exists failed after 4 attempts
2015-05-17 23:11:37,484 WARN [main] : hconnection-0x1623e7c40x0, quorum=master:2181, baseZNode=/hbase Unable to set watcher on znode (/hbase/hbaseid)
$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
at (:99)
at (:51)
at (:1045)
at (:222)
at (:481)
at (:65)
at (:86)
at $(:833)
at $HConnectionImplementation.<init>(:623)
at .newInstance0(Native Method)
at (:57)
at (:45)
at (:526)
at (:238)
at (:218)
at (:119)
at .invoke0(Native Method)
at (:57)
at (:43)
at (:606)
at (:450)
at (:362)
at (:58)
at (:312)
at (:169)
at (:57)
at (:95)
at (:104)
at (:71)
at .INTERPRET_METHOD(:74)
at (:169)
at (:191)
at (:302)
at (:144)
at (:148)
at (:822)
at $i$(RubyClass$i$:65535)
at $(:249)
at (:292)
at (:135)
at .__file__(/usr/local/hbase/bin/:118)
at (/usr/local/hbase/bin/)
at (:697)
at (:690)
at (:597)
at (:446)
at (:369)
at (:258)
at (:224)
at (:208)
at (:188)
2015-05-17 23:11:37,492 ERROR [main] : hconnection-0x1623e7c40x0, quorum=master:2181, baseZNode=/hbase Received unexpected KeeperException, re-throwing exception
$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
at (:99)
at (:51)
at (:1045)
at (:222)
at (:481)
at (:65)
at (:86)
at $(:833)
at $HConnectionImplementation.<init>(:623)
at .newInstance0(Native Method)
at (:57)
at (:45)
at (:526)
at (:238)
at (:218)
at (:119)
at .invoke0(Native Method)
at (:57)
at (:43)
at (:606)
at (:450)
at (:362)
at (:58)
at (:312)
at (:169)
at (:57)
at (:95)
at (:104)
at (:71)
at .INTERPRET_METHOD(:74)
at (:169)
at (:191)
at (:302)
at (:144)
at (:148)
at (:822)
at $i$(RubyClass$i$:65535)
at $(:249)
at (:292)
at (:135)
at .__file__(/usr/local/hbase/bin/:118)
at (/usr/local/hbase/bin/)
at (:697)
at (:690)
at (:597)
at (:446)
at (:369)
at (:258)
at (:224)
at (:208)
at (:188)
HBase Shell; enter 'help<RETURN>' for list of supported commands.
Type "exit<RETURN>" to leave the HBase Shell
Version 1.0.1, r66a93c09df3b12ff7b86c39bc8475c60e15af82d, Fri Apr 17 22:14:06 PDT 2015
原因 没有启动HBase 需要运行 才可以。