首页 \ 问答 \ Phoenix Build失败了。(Phoenix Build fail. Cannot find Symbol. Phoenix 4.8.2 Hbase-1.2 cdh 5.9.1)

Phoenix Build失败了。(Phoenix Build fail. Cannot find Symbol. Phoenix 4.8.2 Hbase-1.2 cdh 5.9.1)

 我正在Cloudera的Hadoop和Hbase安装上安装Apache Phoenix 4.8.2-Hbase-1.2（即两者都通过cdh 5.9.1安装） 
 

 遵循这些说明来构建Phoenix： 使用Phoenix和Cloudera Hbase（从repo安装） 
 

 现在当我运行sudo mvn install -DskipTests 
 

 我在凤凰核心编译中遇到这个错误： 
 

[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Phoenix .................................... SUCCESS [5.569s]
[INFO] Phoenix Core ...................................... FAILURE [2:30.148s]
[INFO] Phoenix - Flume ................................... SKIPPED
[INFO] Phoenix - Pig ..................................... SKIPPED
[INFO] Phoenix Query Server Client ....................... SKIPPED
[INFO] Phoenix Query Server .............................. SKIPPED
[INFO] Phoenix - Pherf ................................... SKIPPED
[INFO] Phoenix - Spark ................................... SKIPPED
[INFO] Phoenix - Hive .................................... SKIPPED
[INFO] Phoenix Client .................................... SKIPPED
[INFO] Phoenix Server .................................... SKIPPED
[INFO] Phoenix Assembly .................................. SKIPPED
[INFO] Phoenix - Tracing Web Application ................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:37.862s
[INFO] Finished at: Fri Jan 20 13:02:44 IST 2017
[INFO] Final Memory: 68M/714M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project phoenix-core: Compilation failure: Compilation failure:
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[222,29] cannot find symbol
[ERROR] symbol:   variable QUEUE_NAME
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[226,32] cannot find symbol
[ERROR] symbol:   variable MAP_MEMORY_MB
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[227,29] cannot find symbol
[ERROR] symbol:   variable MAP_JAVA_OPTS
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[229,54] cannot find symbol
[ERROR] symbol:   variable QUEUE_NAME
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[230,39] cannot find symbol
[ERROR] symbol:   variable MAP_MEMORY_MB
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[231,39] cannot find symbol
[ERROR] symbol:   variable MAP_JAVA_OPTS
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :phoenix-core

 

 它无法在org.apache.hadoop.mapreduce.MRJobConfig类中找到QUEUE_NAME MAP_MEMORY_MB和MAP_JAVA_OPTS 。 cloudera hadoop 2.6不包含这些变量吗？ 
 

 此外， public static void updateCapacityQueueInfo(Configuration conf)只有这个public static void updateCapacityQueueInfo(Configuration conf)函数正在使用这些变量并导致编译失败。 这是为Capacity调度程序提供信息的函数。 从凤凰代码中评论此函数及其调用是否安全，因为我只安装这些函数用于本地测试，而不是用于生产环境。 
 

 否则还有什么可能是解决方案？ 不是hadoop 2.6和凤凰4.8.2兼容吗？ 

I'm installing Apache Phoenix 4.8.2-Hbase-1.2 over my Cloudera's Hadoop and Hbase installation (i.e both are installed through cdh 5.9.1) 
 

Followed these instructions to build Phoenix over it: Using Phoenix with Cloudera Hbase (installed from repo)
 

Now when i run sudo mvn install -DskipTests
 

I get this error in phoenix-core compilation:
 

[INFO] Reactor Summary:
[INFO] 
[INFO] Apache Phoenix .................................... SUCCESS [5.569s]
[INFO] Phoenix Core ...................................... FAILURE [2:30.148s]
[INFO] Phoenix - Flume ................................... SKIPPED
[INFO] Phoenix - Pig ..................................... SKIPPED
[INFO] Phoenix Query Server Client ....................... SKIPPED
[INFO] Phoenix Query Server .............................. SKIPPED
[INFO] Phoenix - Pherf ................................... SKIPPED
[INFO] Phoenix - Spark ................................... SKIPPED
[INFO] Phoenix - Hive .................................... SKIPPED
[INFO] Phoenix Client .................................... SKIPPED
[INFO] Phoenix Server .................................... SKIPPED
[INFO] Phoenix Assembly .................................. SKIPPED
[INFO] Phoenix - Tracing Web Application ................. SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2:37.862s
[INFO] Finished at: Fri Jan 20 13:02:44 IST 2017
[INFO] Final Memory: 68M/714M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project phoenix-core: Compilation failure: Compilation failure:
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[222,29] cannot find symbol
[ERROR] symbol:   variable QUEUE_NAME
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[226,32] cannot find symbol
[ERROR] symbol:   variable MAP_MEMORY_MB
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[227,29] cannot find symbol
[ERROR] symbol:   variable MAP_JAVA_OPTS
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[229,54] cannot find symbol
[ERROR] symbol:   variable QUEUE_NAME
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[230,39] cannot find symbol
[ERROR] symbol:   variable MAP_MEMORY_MB
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] /opt/apache-phoenix-4.8.2-HBase-1.2-src-copy/phoenix-core/src/main/java/org/apache/phoenix/util/PhoenixMRJobUtil.java:[231,39] cannot find symbol
[ERROR] symbol:   variable MAP_JAVA_OPTS
[ERROR] location: interface org.apache.hadoop.mapreduce.MRJobConfig
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <goals> -rf :phoenix-core

 

Its not able to find QUEUE_NAME MAP_MEMORY_MB and MAP_JAVA_OPTS in org.apache.hadoop.mapreduce.MRJobConfig class. Doesn't cloudera hadoop 2.6 contain these variables? 
 

Also only this public static void updateCapacityQueueInfo(Configuration conf) function in PhoenixMRJobUtil.java is using these variables and causing the compilation failure. This is the function providing info for Capacity scheduler. Is it safe to comment this function and its calls from the phoenix code, since I'm installing these for local testing only and not for production environment. 
 

Otherwise what else could be the resolution? Aren't hadoop 2.6 and phoenix 4.8.2 compatible?

原文：https://stackoverflow.com/questions/41758521
更新时间：2023-01-09 21:01

最满意答案

 让我们说byte low = 50, high = 100 。 
 

 表达式low + high将首先将两者都提升为int ，然后添加它们，从而得到值150 (int) 。 
 

 在版本1中，然后将150 (int)为byte ，即值-106 (byte) 。 溢出 。 与+相同， /运算符将两侧提升为int ，因此它变为-106 (int) ，除以2时为-53 (int) 。 最后再次转换为byte ，最后以-53 (byte)结束。 
 

 在版本2中，您将150 (int)除以2 ，并且因为两边都已经是int值，所以不进行任何提升，最后是75 (int) 。 将其转换为byte给出75 (byte) 。 没有溢出 。 

Lets say that byte low = 50, high = 100.
 

The expression low + high will first promote both to int, then add them, resulting in value 150 (int).
 

In version 1, you then cast 150 (int) to byte, which is value -106 (byte). Overflow. Same as for +, the / operator will promote both sides to int, so it becomes -106 (int), which is -53 (int) when divided by 2. Finally you cast to byte again, ending up with -53 (byte).
 

In version 2, you divide 150 (int) by 2, and since both sides are already int values, no promotion is done, ending up with 75 (int). Casting that to byte gives you 75 (byte). No overflow.

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