如果我在cloudera 5.4.1环境中发出此webhcat REST调用
curl -s 'http://mywebhcat:50111/templeton/v1/ddl/database/default/table/person?
user.name=admin&format=extended'; echo; echo;
一切正常，我看到了表格的元数据。
但如果我将上面的REST调用更改为
，还有另一个名为foo_bar的表curl -s 'http://mywebhcat:50111/templeton/v1/ddl/database/default/table/foo_bar?
user.name=admin&format=extended'; echo; echo;
然后我收到错误
{"statement":"use default; show table extended like
foo_bar;","error":"unable to show table:
foo_bar","exec":{"stdout":"","stderr":"which: no /opt/cloudera/parcels/
CDH-5.4.1-1.cdh5.4.1.p0.6/lib/hadoop/bin/hadoop in ((null))\ndirname: missing operand\nTry
`dirname --help' for more information.\nlog4j:ERROR setFile(null,true) call failed.\njava.io
.FileNotFoundException: /opt/cloudera/parcels/CDH-5.4.1-1.cdh5.4.1.p0.6/lib/hive/logs/hcat.
log (No such file or directory)\n\tat java.io.FileOutputStream.open0(Native Method)\n\tat
java.io.FileOutputStream.open(FileOutputStream.java:270)\n\tat java.io.FileOutputStream.<
init>(FileOutputStream.java:213)\n\tat java.io.FileOutputStream.<init>(FileOutputStream.
java:133)\n\tat org.apache.log4j.FileAppender.setFile(FileAppender.java:294)\n\tat org.
apache.log4j.FileAppender.activateOptions(FileAppender.java:165)\n\tat org.apache.log4j.
DailyRollingFileAppender.activateOptions(DailyRollingFileAppender.java:223)\n\tat org.apache
.log4j.config.PropertySetter.activate(PropertySetter.java:307)\n\tat org.apache.log4j.config
.PropertySetter.setProperties(PropertySetter.java:172)\n\tat org.apache.log4j.config.
PropertySetter.setProperties(PropertySetter.java:104)\n\tat org.apache.log4j.
PropertyConfigurator.parseAppender(PropertyConfigurator.java:842)\n\tat org.apache.log4j.
PropertyConfigurator.parseCategory(PropertyConfigurator.java:768)\n\tat org.apache.log4j.
PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:648)\n\tat org.apache.
log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:514)\n\tat org.apache.log4j
.PropertyConfigurator.doConfigure(PropertyConfigurator.java:580)\n\tat org.apache.log4j.
PropertyConfigurator.configure(PropertyConfigurator.java:415)\n\tat org.apache.hadoop.hive.
common.LogUtils.initHiveLog4jDefault(LogUtils.java:127)\n\tat org.apache.hadoop.hive.common.
LogUtils.initHiveLog4jCommon(LogUtils.java:77)\n\tat org.apache.hadoop.hive.common.LogUtils.
initHiveLog4j(LogUtils.java:58)\n\tat org.apache.hive.hcatalog.cli.HCatCli.main(HCatCli.
java:65)\n\tat sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n\tat sun.reflect
.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n\tat sun.reflect.
DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat java.lang.
reflect.Method.invoke(Method.java:497)\n\tat org.apache.hadoop.util.RunJar.run(RunJar.
java:221)\n\tat org.apache.hadoop.util.RunJar.main(RunJar.java:136)\nlog4j:ERROR Either
File or DatePattern options are not set for appender [DRFA].\nOK\nTime taken: 1.035
seconds\n Command was terminated due to timeout(10000ms). See templeton.exec.timeout
property","exitcode":143}}
我不知道为什么它只为foo_bar表抱怨缺少日志目录，但成功返回有关Person的元数据。
顺便说一句，我可以进入蜂巢控制台并在Person和foo_bar上执行select count（*）查询。
EDIT ::
再次阅读错误消息时，似乎核心问题是
命令因超时（10000毫秒）而终止。请参阅templeton.exec.timeout属性“，”exitcode“：143
但是cloudera经理不知道这个属性“templeton.exec.timeout”...我该怎么办...我不想手动编辑文件，因为群集中有很多节点。
EDIT2 ::
我进入每个hadoop节点并做了
sudo vi /opt/cloudera/parcels/CDH-5.4.1-1.cdh5.4.1.p0.6/etc/hive-webhcat/conf.dist/webhcat-default.xml
我找到了超时值并将其增加到1000000.我在每一个上做了这个，然后我使用cloudera manager重新启动了Hive和WebHCat服务器。但我得到了完全相同的错误信息。