authentication - NameNotFoundException in LDAP while used with Gerrit -

my intention install gerrit code review tool in remote server. had initialise gerrit site , launched web ui of gerrit in browser. key thing have used "ldap" auth type in gerrit config file. when tried sign in gerrit shows error "authentication unavailable @ time". , corresponding error log shows "namenotfoundexception". shown below gerrit configuration , error log messages. assume ldap server ip "xxx.xxx.xxx.xxx" , domain "abc-def.com" knows how fix issue ..??

 **gerrit.config**  [database]     type = h2     database = /home/test/gerrit-testsite/db/reviewdb [index]     type = lucene [auth]     type = ldap [ldap]     server = ldap://xxx.xxx.xxx.xxx     username = nidheesh.kumar@abc-def.com     password = *******     accountbase = cn=username,ou=users,ou=tvm,ou=india,dc=abc-def,dc=com     referral = follow     accountpattern = (samaccountname=${username})     grouppattern = (cn=${groupname})     accountfullname = cn     accountmemberfield = memberof     accountemailaddress = mail [receive]     enablesignedpush = false [sendemail]     smtpserver = localhost [container]     user = test     javahome = /usr/lib/jvm/java-7-openjdk-amd64/jre   **error log**   error com.google.gerrit.server.auth.ldap.ldaprealm : cannot query ldap authenticate user javax.naming.namenotfoundexception: [ldap: error code 32 - 0000208d: nameerr: dsid-03100238, problem 2001 (no_object), data 0, best match of:     'ou=users,ou=tvm,ou=india,dc=quest-global,dc=com' \00]; remaining name 'cn=username,ou=users,ou=tvm,ou=india,dc=quest-global,dc=com'     @ com.sun.jndi.ldap.ldapctx.maperrorcode(ldapctx.java:3113)     @ com.sun.jndi.ldap.ldapctx.processreturncode(ldapctx.java:3034)     @ com.sun.jndi.ldap.ldapctx.processreturncode(ldapctx.java:2841)     @ com.sun.jndi.ldap.ldapctx.searchaux(ldapctx.java:1850)     @ com.sun.jndi.ldap.ldapctx.c_search(ldapctx.java:1773)     @ com.sun.jndi.ldap.ldapctx.c_search(ldapctx.java:1790)     @ com.sun.jndi.toolkit.ctx.componentdircontext.p_search(componentdircontext.java:412)     @ com.sun.jndi.toolkit.ctx.partialcompositedircontext.search(partialcompositedircontext.java:394)     @ com.sun.jndi.toolkit.ctx.partialcompositedircontext.search(partialcompositedircontext.java:376)     @ javax.naming.directory.initialdircontext.search(initialdircontext.java:286)     @ com.google.gerrit.server.auth.ldap.ldapquery.query(ldapquery.java:70)     @ com.google.gerrit.server.auth.ldap.helper.findaccount(helper.java:205)     @ com.google.gerrit.server.auth.ldap.ldaprealm.authenticate(ldaprealm.java:235)     @ com.google.gerrit.server.account.accountmanager.authenticate(accountmanager.java:106)     @ com.google.gerrit.httpd.auth.ldap.ldaploginservlet.dopost(ldaploginservlet.java:125)     @ javax.servlet.http.httpservlet.service(httpservlet.java:648)     @ javax.servlet.http.httpservlet.service(httpservlet.java:729)     @ com.google.inject.servlet.servletdefinition.doserviceimpl(servletdefinition.java:287)     @ com.google.inject.servlet.servletdefinition.doservice(servletdefinition.java:277)     @ com.google.inject.servlet.servletdefinition.service(servletdefinition.java:182)     @ com.google.inject.servlet.managedservletpipeline.service(managedservletpipeline.java:91)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:85)     @ com.google.gerrit.httpd.getuserfilter.dofilter(getuserfilter.java:82)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:82)     @ com.google.gwtexpui.server.cachecontrolfilter.dofilter(cachecontrolfilter.java:73)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:82)     @ com.google.gerrit.httpd.runasfilter.dofilter(runasfilter.java:117)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:82)     @ com.google.gerrit.httpd.allrequestfilter$filterproxy$1.dofilter(allrequestfilter.java:136)     @ com.google.gerrit.httpd.allrequestfilter$filterproxy.dofilter(allrequestfilter.java:138)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:82)`enter code here`     @ com.google.gerrit.httpd.requestcontextfilter.dofilter(requestcontextfilter.java:75)     @ com.google.inject.servlet.filterchaininvocation.dofilter(filterchaininvocation.java:82)     @ com.google.inject.servlet.managedfilterpipeline.dispatch(managedfilterpipeline.java:119)     @ com.google.inject.servlet.guicefilter$1.call(guicefilter.java:133)     @ com.google.inject.servlet.guicefilter$1.call(guicefilter.java:130)     @ com.google.inject.servlet.guicefilter$context.call(guicefilter.java:203)     @ com.google.inject.servlet.guicefilter.dofilter(guicefilter.java:130)     @ org.eclipse.jetty.servlet.servlethandler$cachedchain.dofilter(servlethandler.java:1652)     @ org.eclipse.jetty.servlet.servlethandler.dohandle(servlethandler.java:585)     @ org.eclipse.jetty.server.session.sessionhandler.dohandle(sessionhandler.java:221)     @ org.eclipse.jetty.server.handler.contexthandler.dohandle(contexthandler.java:1127)     @ org.eclipse.jetty.servlet.servlethandler.doscope(servlethandler.java:515)     @ org.eclipse.jetty.server.session.sessionhandler.doscope(sessionhandler.java:185)     @ org.eclipse.jetty.server.handler.contexthandler.doscope(contexthandler.java:1061)     @ org.eclipse.jetty.server.handler.scopedhandler.handle(scopedhandler.java:141)     @ org.eclipse.jetty.server.handler.handlerwrapper.handle(handlerwrapper.java:97)     @ org.eclipse.jetty.server.handler.requestloghandler.handle(requestloghandler.java:95)     @ org.eclipse.jetty.server.handler.handlerwrapper.handle(handlerwrapper.java:97)     @ org.eclipse.jetty.server.server.handle(server.java:499)     @ org.eclipse.jetty.server.httpchannel.handle(httpchannel.java:310)     @ org.eclipse.jetty.server.httpconnection.onfillable(httpconnection.java:257)     @ org.eclipse.jetty.io.abstractconnection$2.run(abstractconnection.java:540)     @ org.eclipse.jetty.util.thread.queuedthreadpool.runjob(queuedthreadpool.java:635)     @ org.eclipse.jetty.util.thread.queuedthreadpool$3.run(queuedthreadpool.java:555)     @ java.lang.thread.run(thread.java:745) 

i have fixed issue changing gerrit.config file following settings :      [auth]         type = ldap_bind     [ldap]         server = ldap://192.168.192.200         accountbase = cn=username,ou=users,ou=tvm,ou=india,dc=quest-global,dc=com         referral = follow         accountpattern = (&(objectclass=*)(samaccountname=${username}))         groupbase = cn=username,ou=users,ou=tvm,ou=india,dc=quest-global,dc=com         grouppattern = (cn=${groupname})         accountfullname = cn         accountmemberfield = memberof         accountemailaddress = mail 

but authentication still not working, info got error log as:

info  com.google.gerrit.httpd.auth.ldap.ldaploginservlet : 'xxxx@abc-def.com' failed sign in: no such user: xxxx@abc-def.com 

should have edit in gerrit server authentication work ? or have edit in ldap server work ?