i have installed hdp 2.3.4 on windows 2012 server. when i run the file start_local_hdp_services.cmd, everything starts fine except derbyserver. to debug the issue, i executed derbyserver.cmd that i sitting under hdp\hive directory and got the following error: Error: Could not find or load main class org.apache.derby.drda.NetworkServerControl i used @echo to print out the classpath and got the following output: c:\hdp\hadoop-2.7.1.2.3.4.0-3485\etc\hadoop;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\common\lib\*;c:\hdp\hadoop-2.7 .1.2.3.4.0-3485\share\hadoop\common\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\hdfs;c:\hdp\hadoop-2.7.1.2.3.4.0-348 5\share\hadoop\hdfs\lib\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\hdfs\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\ha doop\yarn\lib\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\yarn\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\mapre duce\lib\*;c:\hdp\hadoop-2.7.1.2.3.4.0-3485\share\hadoop\mapreduce\*;c:\hdp\tez-0.7.0.2.3.4.0-3485\conf\;c:\hdp\tez-0.7. 0.2.3.4.0-3485\*;c:\hdp\tez-0.7.0.2.3.4.0-3485\lib\*;;c:\hdp\hive-1.2.1.2.3.4.0-3485\lib\derby-10.10.2.0.jar then i did jar -tf derby-10.10.2.0.jar to see if it contains the NetworkServerControl and it does not; this is the class that its trying to start and it does not exist, at least in the derby-10.10.20.0.jar file. on searching online, the above class sits in derbynet.jar file. maybe its named as derby-10.10.20.0.jar file, but issue is that the NetworkServerControl is missing and derbyserver is not starting. i'll really appreciate any help with this. ... View more