在eclipse调试hbase程序时发现如下日志:
2014-11-21 16:27:56,030 DEBUG [org.apache.hadoop.util.Shell] - Failed to detect a valid hadoop home directory
java.io.IOException
: HADOOP_HOME or hadoop.home.dir are not set.
at org.apache.hadoop.util.Shell.checkHadoopHome(
Shell.java:225
)
at org.apache.hadoop.util.Shell.<clinit>(
Shell.java:250
)
at org.apache.hadoop.util.StringUtils.<clinit>(
StringUtils.java:76
)
at org.apache.hadoop.conf.Configuration.getStrings(
Configuration.java:1514
)
at org.apache.hadoop.hbase.zookeeper.ZKConfig.makeZKProps(
ZKConfig.java:113
)
at org.apache.hadoop.hbase.zookeeper.ZKConfig.getZKQuorumServersString(
ZKConfig.java:265
)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(
ZooKeeperWatcher.java:159
)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(
ZooKeeperWatcher.java:134
)
at org.apache.hadoop.hbase.client.ZooKeeperKeepAliveConnection.<init>(

在Eclipse中调试Hbase程序时遇到'Failed to detect a valid hadoop home directory java.io.IOException'的问题。错误源于HADOOP_HOME或hadoop.home.dir环境变量未设置。解决方案包括在Windows中设置环境变量或在代码中通过System.setProperty()临时设置。
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