hadoop 生态系统版本对应问题

http://hbase.apache.org/book.html

这是hortonworks的哦哦哦哦哦哦哦哦哦哦哦哦

Hadoop2.xisbetterthanHadoop1.x

Hadoop2.xisfaster,withmorefeaturessuchasshort-circuitreadswhichwillhelpimproveyourHBaserandomreadprofileaswellimportantbugfixesthatwillimproveyouroverallHBaseexperience.YoushouldrunHadoop2.ratherthanHadoop1.ifyoucan.

Table2.1.Hadoopversionsupportmatrix

	HBase-0.92.x	HBase-0.94.x	HBase-0.96.0
Hadoop-0.20.205	S	X	X
Hadoop-0.22.x	S	X	X
Hadoop-1.0.0-1.0.2[a]	S	S	X
Hadoop-1.0.3+	S	S	S
Hadoop-1.1.x	NT	S	S
Hadoop-0.23.x	X	S	NT
Hadoop-2.0.x-alpha	X	NT	X
Hadoop-2.1.0-beta	X	NT	S
Hadoop-2.2.0	X	NT	S
Hadoop-2.x	X	NT	S
[a]HBaserequireshadoop1.0.3ataminimum;thereisanissuewherewecannotfindKerberosUtilcompilingagainstearlierversionsofHadoop.

Where

S=supportedandtested,

X=notsupported,

NT=itshouldrun,butnottestedenough.

ReplacetheHadoopBundledWithHBase!

BecauseHBasedependsonHadoop,itbundlesaninstanceoftheHadoopjarunderits

lib

directory.ThebundledjarisONLYforuseinstandalonemode.Indistributedmode,itiscriticalthattheversionofHadoopthatisoutonyourclustermatchwhatisunderHBase.ReplacethehadoopjarfoundintheHBaselibdirectorywiththehadoopjaryouarerunningonyourclustertoavoidversionmismatchissues.MakesureyoureplacethejarinHBaseeverywhereonyourcluster.Hadoopversionmismatchissueshavevariousmanifestationsbutoftenalllookslikeitshungup.