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Posted to reviews@kudu.apache.org by "Todd Lipcon (Code Review)" <ge...@cloudera.org> on 2016/11/02 00:08:57 UTC

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Hello Dan Burkert, Alexey Serbin,

I'd like you to do a code review.  Please visit

    http://gerrit.cloudera.org:8080/4908

to review the following change.

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................

rpc: improve behavior when GSSAPI SASL plugin is missing

* If the client cannot enable the GSSAPI plugin, it now proceeds with a
  connection anyway after logging a single VLOG(1) message. This allows
  a client to connect to a non-Kerberos-enabled cluster without having
  to install the GSSAPI plugin.

* If the server fails to enable the GSSAPI plugin for any reason, it now
  sends back a FATAL_UNAUTHORIZED error so that the client can print
  something reasonable. Unfortunately this one was tricky to test, so I
  tested it manually by uninstalling the GSSAPI plugin on the server
  side and connecting from another machine.

* If the client fails to negotiate a matching SASL mechanism, it
  replaces the confusing "No worthy mechs" error message with something
  that's more usable for the average user, suggesting to install the
  GSSAPI plugin.

Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
---
M src/kudu/rpc/connection.cc
M src/kudu/rpc/negotiation.cc
M src/kudu/rpc/sasl_client.cc
M src/kudu/rpc/sasl_helper.cc
M src/kudu/rpc/sasl_rpc-test.cc
M src/kudu/rpc/sasl_server.cc
M src/kudu/rpc/sasl_server.h
7 files changed, 47 insertions(+), 11 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/08/4908/1
-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: newchange
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Posted by "Todd Lipcon (Code Review)" <ge...@cloudera.org>.
Hello Dan Burkert, Alexey Serbin, Kudu Jenkins,

I'd like you to reexamine a change.  Please visit

    http://gerrit.cloudera.org:8080/4908

to look at the new patch set (#2).

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................

rpc: improve behavior when GSSAPI SASL plugin is missing

* If the client cannot enable the GSSAPI plugin, it now proceeds with a
  connection anyway after logging a single VLOG(1) message. This allows
  a client to connect to a non-Kerberos-enabled cluster without having
  to install the GSSAPI plugin.

* If the client fails to negotiate a matching SASL mechanism, it
  replaces the confusing "No worthy mechs" error message with something
  that's more usable for the average user, suggesting to install the
  GSSAPI plugin.

Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
---
M src/kudu/rpc/connection.cc
M src/kudu/rpc/sasl_client.cc
M src/kudu/rpc/sasl_helper.cc
M src/kudu/rpc/sasl_rpc-test.cc
4 files changed, 29 insertions(+), 4 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/08/4908/2
-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 2
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Posted by "Todd Lipcon (Code Review)" <ge...@cloudera.org>.
Todd Lipcon has submitted this change and it was merged.

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................


rpc: improve behavior when GSSAPI SASL plugin is missing

* If the client cannot enable the GSSAPI plugin, it now proceeds with a
  connection anyway after logging a single VLOG(1) message. This allows
  a client to connect to a non-Kerberos-enabled cluster without having
  to install the GSSAPI plugin.

* If the client fails to negotiate a matching SASL mechanism, it
  replaces the confusing "No worthy mechs" error message with something
  that's more usable for the average user, suggesting to install the
  GSSAPI plugin.

Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Reviewed-on: http://gerrit.cloudera.org:8080/4908
Tested-by: Kudu Jenkins
Reviewed-by: Dan Burkert <da...@apache.org>
---
M src/kudu/rpc/connection.cc
M src/kudu/rpc/sasl_client.cc
M src/kudu/rpc/sasl_helper.cc
M src/kudu/rpc/sasl_rpc-test.cc
4 files changed, 29 insertions(+), 4 deletions(-)

Approvals:
  Dan Burkert: Looks good to me, approved
  Kudu Jenkins: Verified



-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: merged
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 3
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Posted by "Todd Lipcon (Code Review)" <ge...@cloudera.org>.
Todd Lipcon has posted comments on this change.

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4908/1/src/kudu/rpc/negotiation.cc
File src/kudu/rpc/negotiation.cc:

Line 206:     // If we can't initialize SASL, that indicates some kind of issue like
> Wouldn't a missing plugin be caught in the pre-flight check?  This should o
oh... yea, I added the pre-flight check after I wrote this. Not sure if there are other cases where this matters, so maybe I'll just remove this part of the patch?


-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: comment
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>
Gerrit-HasComments: Yes

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Posted by "Dan Burkert (Code Review)" <ge...@cloudera.org>.
Dan Burkert has posted comments on this change.

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................


Patch Set 1:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/4908/1/src/kudu/rpc/negotiation.cc
File src/kudu/rpc/negotiation.cc:

Line 206:     // If we can't initialize SASL, that indicates some kind of issue like
Wouldn't a missing plugin be caught in the pre-flight check?  This should only occur because of an expired ticket, right?


-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: comment
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 1
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-HasComments: Yes

[kudu-CR] rpc: improve behavior when GSSAPI SASL plugin is missing

Posted by "Dan Burkert (Code Review)" <ge...@cloudera.org>.
Dan Burkert has posted comments on this change.

Change subject: rpc: improve behavior when GSSAPI SASL plugin is missing
......................................................................


Patch Set 2: Code-Review+2

-- 
To view, visit http://gerrit.cloudera.org:8080/4908
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-MessageType: comment
Gerrit-Change-Id: I49b991fd7088666a2b8daad18d70844ed8a5451f
Gerrit-PatchSet: 2
Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-Owner: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Alexey Serbin <as...@cloudera.com>
Gerrit-Reviewer: Dan Burkert <da...@apache.org>
Gerrit-Reviewer: Kudu Jenkins
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>
Gerrit-HasComments: No