Hello Audi et al,   I have seen the error below when the lock files in the Derby database directory are owned by a user other than Sqoop2.  This can happen if you manually connect to the database using the Derby "ij" tool.   Server startup failure org.apache.sqoop.common.SqoopException: JDBCREPO_0007:Unable to lease link at org.apache.sqoop.repository.JdbcRepositoryTransaction.begin(JdbcRepositoryTransaction.java:64) <SNIP> at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414) Caused by: org.apache.commons.dbcp.SQLNestedException: Cannot get a connection, pool error Could not create a validated object, cause: A read-only user or a user in a read-only database is not permitted to disable read-only mode on a connection. at org.apache.commons.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:1Caused by: java.util.NoSuchElementException: Could not create a validated object, cause: A read-only user or a user in a read-only database is not permitted to disable read-only mode on a connection.   # ls -l total 24 -rw-r--r-- 1 root root 4 Aug 10 11:28 dbex.lck <====== -rw-r--r-- 1 root root 38 Aug 10 11:28 db.lck <======= drwxr-xr-x 2 sqoop2 sqoop2 4096 Aug 10 10:15 log drwxr-xr-x 2 sqoop2 sqoop2 4096 Aug 10 10:15 seg0 -rw-r--r-- 1 sqoop2 sqoop2 853 Aug 10 10:15 service.properties drwxr-xr-x 2 sqoop2 sqoop2 4096 Aug 10 13:49 tmp   To get past this issue do the following: Ensure that there are no connections to the database Address the lock files Option 1: chown sqoop2:sqoop2 *.lck Option 2: rm -rf *.lck Start Sqoop2   Hope this helps, Markus Kemper - Cloudera Support ... View more

Can you paste the contents of your /etc/hosts file? Also run this command on your CM host as well as hslave and paste the results here. # python -c "import socket; print socket.getfqdn(); print socket.gethostbyname(socket.getfqdn())" ... View more