hadoop - Using krb5 API to get credential and use it to access secure HDFS -


so problem access kerberos secured hdfs, using c++, given keytab. somehow must use krb5 apis , keytab authenticate program , furthur access hdfs.

so example, if use krb5_get_init_creds_keytab credentials, krb5_creds. use jni access hdfs. however, i didn't find way use krb5_creds access hdfs.

what know far:

  1. usergroupinformation can read kerberos key cach on filesystem. don't want have key cash on file system. directly use krb5_creds function call
  2. i looked libhdfs -> hdfs.c -> hdfsbuilderconnect, don't see authenticate user using keytab. seems me libhdfs subset of api of hdfs.

any suggestions?


-

Comments

Post a Comment

Popular posts from this blog

javascript - Thinglink image not visible until browser resize -

Image
i trying repurpose pre-existing theme, includes drop down menu displays image. trying embed thinglink drop down menu's content section, not visible until resize browser window. here menu looks like: then when clicked, can see empty space image should show: then when browser resized, image appears: this code content of menu: <div class="ajax_accordion_content" style="display: none;"> <div class="report-detail"> <table border="0" cellpadding="0" cellspacing="0" width="100%" class="table_basic"> <tbody> <!-- thinglink image embedded --> <img style="max-width: 100%;" src="http://cdn.thinglink.me/api/image/832705713204625409/1024/10/scaletowidth#tl-832705713204625409;1043138249'" class="alwaysthinglink"/> <script async charset="utf-8" src="http://cdn.thinglink.me/jse/embed.j...
Read more

firebird - Error "invalid transaction handle (expecting explicit transaction start)" executing script from Delphi -

i'm developing update app delphi 10. i'm running windows 7 64x, firebird 2.5.1.26351 32x. execution order: checks current version(select statement firebird database) downloads update(via ftp) apply it(.exe files, , execute .sql) error code -901 pops out when try execute .sql files. know there incompatibility issue w7 64x , fdb 32x, but, can everything: backup , restore(gbak), db commands(all). tried fdb 64x instead, , not working. code: //components fdwaitcursor: tfdguixwaitcursor; fddriverlink: tfdphysfbdriverlink; fdconnection:tfdconnection; fdscript: tfdscript; function tthr_script.createcomponents:boolean; begin try fddriverlink := tfdphysfbdriverlink.create(fddriverlink); fdwaitcursor := tfdguixwaitcursor.create(fdwaitcursor); fdconnection := tfdconnection.create(fdconnection); fdconnection begin drivername := 'fb'; params.username := thrbanco.bduser; params.password := thrbanco.bdpass; params.database := ...
Read more

Sound is not coming out while implementing Text-to-speech in Android activity -

i using texttospeak in 1 of app. while adding speech string texttospeech object instance, doesn't produce sound. though not getting error in log still sound not coming out. want device speak value of textview gets set resultmsg.settext() method. public class resultactivity extends activity { @override protected void oncreate(bundle savedinstancestate){ ............ resultmsg.settext(resultmsg_str); texttospeech = new texttospeech(getapplicationcontext(),newtexttospeech.oninitlistener(){ @override public void oninit(int status) { system.out.println("txt speech status = "+status); system.out.println("txt speech error status = "+texttospeech.error); system.out.println("txt speech success status = "+texttospeech.success); if(status == texttospeech.success){ texttospeech.setlanguage(locale.english); ...
Read more