https://community.cloudera.com/t5/Support-Questions/Unable-to-determine-server-PID/m-p/176304#M138556 <P>Thanks very much for your quick answer.</P><P>For your questions related to Error 1 :</P><P>I use Ambari server as a root.</P><P>The command "<STRONG>ls -ld /var/run/ambari-serve</STRONG>r" generates :</P><P><STRONG>drwxr-xr-x 2 root root 40 oct. 28 16:32 /var/run/ambari-server</STRONG></P><P>The command "<STRONG>ls -lart /var/run/ambari-server</STRONG>" generates :</P><P><STRONG>total 0<BR />drwxr-xr-x 2 root root 40 oct. 28 16:32 .<BR />drwxr-xr-x 26 root root 820 oct. 28 16:32 ..</STRONG></P><P>For your questions related to Error 2 :</P><P>The command "<STRONG>grep 'jdbc' /etc/ambari-server/conf/ambari.properties</STRONG>" generates :</P><P><STRONG>server.jdbc.connection-pool=c3p0<BR />server.jdbc.connection-pool.acquisition-size=5<BR />server.jdbc.connection-pool.idle-test-interval=7200<BR />server.jdbc.connection-pool.max-age=0<BR />server.jdbc.connection-pool.max-idle-time=14400<BR />server.jdbc.connection-pool.max-idle-time-excess=0<BR />server.jdbc.database=postgres<BR />server.jdbc.database_name=ambari<BR />server.jdbc.driver=org.postgresql.Driver<BR />server.jdbc.hostname=masternode<BR />server.jdbc.port=5432<BR />server.jdbc.postgres.schema=ambari<BR />server.jdbc.rca.driver=org.postgresql.Driver<BR />server.jdbc.rca.url=jdbc:postgresql://masternode:5432/ambari<BR />server.jdbc.rca.user.name=ambari<BR />server.jdbc.rca.user.passwd=/etc/ambari-server/conf/password.dat<BR />server.jdbc.url=jdbc:postgresql://masternode:5432/ambari<BR />server.jdbc.user.name=ambari<BR />server.jdbc.user.passwd=/etc/ambari-server/conf/password.dat</STRONG></P> Sat, 28 Oct 2017 23:42:07 GMT unes_s 2017-10-28T23:42:07Z