https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174818#M137081 <P>To tell the truth, I don't know what is SSF and what increasing SSF means... There's no need to increase SSF possibly. I'll try later, sorry.</P> Thu, 18 Aug 2016 10:47:41 GMT takefumi_ohide 2016-08-18T10:47:41Z https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174815#M137078 <P>Hue 3.10.0 + HiveServer2 with hive.server2.thrift.sasl.qop=auth-conf sometimes(or always on certain conditions) reports a SASL error shown below:</P><P>Error in sasl_decode (-1) SASL(-1): generic failure: Unable to find a callback: 32775 (code THRIFTTRANSPORT): TTransportException('Error in sasl_decode (-1) SASL(-1): generic failure: Unable to find a callback: 32775',)</P><P>I can see this message when executing, for example, "select * from db.table limit 12;", but cannot see when executing "select * from db.table limit 11;"... These queries are same only except for "limit" clause.</P><P>I searched with that error message, so I found this post:</P><P><A href="https://groups.google.com/a/cloudera.org/forum/#!topic/hue-user/0LfySJBERsc" target="_blank">https://groups.google.com/a/cloudera.org/forum/#!topic/hue-user/0LfySJBERsc</A></P><P>A poster said "Seems hue doesn't play nice with hive.server2.thrift.sasl.qop set to auth-conf. Works OK with only auth though." in this post. Is that also true on Hue 3.10.0? Is it impossible to use sasl.qop=auth-conf on Hue 3.10.0?</P> Tue, 16 Aug 2016 11:43:07 GMT https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174815#M137078 takefumi_ohide 2016-08-16T11:43:07Z https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174816#M137079 <P> I found a solution... but it's just a quick hack, not an appropriate fix I think.</P><OL> <LI>modify hue/desktop/core/ext-py/sasl-0.1.1/sasl/saslwrapper.cpp to increase maxBufSize.</LI> <LI>build it with "python setup.py build" and get a new _saslwrapper.so</LI> <LI>replace hue/build/env/lib/python2.6/site-packages/sasl-0.1.1-py2.6-linux-x86_64.egg/_saslwrapper.so with it</LI> <LI>restart Hue.</LI></OL><P>Detail of step 1 and 2 below.</P><P>Step 1.</P><P>In hue/desktop/core/ext-py/sasl-0.1.1/sasl/saslwrapper.cpp you can find a line "ClientImpl() : conn(0), cbIndex(0), maxBufSize(65535), minSsf(0), maxSsf(65535), externalSsf(0), secret(0) {}" around line 35, so modified maxBufSize to larger value.</P><P>Step 2.</P><P>In hue/desktop/core/ext-py/sasl-0.1.1, execute "python setup.py build", so you've got _saslwrapper.so in hue/desktop/core/ext-py/sasl-0.1.1/uild/lib.linux-x86_64-2.6/_saslwrapper.so</P> Wed, 17 Aug 2016 16:39:06 GMT https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174816#M137079 takefumi_ohide 2016-08-17T16:39:06Z https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174817#M137080 <P>Thank you very much for providing an answer. </P><P>I'm having some difficulty to understand why SSF is also needed to increase. I'm just wondering accepting (or offering?) higher factor wouldn't require more buffer?</P> Thu, 18 Aug 2016 10:23:08 GMT https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174817#M137080 hosako 2016-08-18T10:23:08Z https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174818#M137081 <P>To tell the truth, I don't know what is SSF and what increasing SSF means... There's no need to increase SSF possibly. I'll try later, sorry.</P> Thu, 18 Aug 2016 10:47:41 GMT https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174818#M137081 takefumi_ohide 2016-08-18T10:47:41Z https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174819#M137082 <P>I confirmed that it's not necessary to increase maxSsf, only maxBufSize should be increased for this solution. Thanks <A rel="user" href="https://community.cloudera.com/users/206/hosako.html" nodeid="206">@Hajime</A> for your comment! And I'll edit my first answer.</P> Thu, 18 Aug 2016 13:39:59 GMT https://community.cloudera.com/t5/Support-Questions/Hue-3-10-0-HiveServer2-with-hive-server2-thrift-sasl-qop/m-p/174819#M137082 takefumi_ohide 2016-08-18T13:39:59Z