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Zookeeper >> mail # user >> SASL problem with 3.4.4 Java client

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Re: SASL problem with 3.4.4 Java client
On 2012-09-26, Mahadev Konar <[EMAIL PROTECTED]> wrote:
> Thanks for point this out JL and Robert. We have a jira for this
> https://issues.apache.org/jira/browse/ZOOKEEPER-1477 and we will be
> doing a 3.4.5 ASAP to address this.

This ticket doesn't look like it describes my problem.  For me, it's
OSX that works fine and Linux which does not, with rather different
symptoms -- the client is explicitly deciding not to send any packets.

I think I've tracked it down.  In Linux,
ZooKeeperSaslClient.clientTunneledAuthenticationInProgress is not
receiving any SecurityException out of the call to
javax.security.auth.login.Configuration.getConfiguration so that
method thinks it's actually trying SASL.  On OSX an exception is
thrown and so the "Could not retrieve login configuration" log line is
triggered.  It looks like the constructor's idea of what constitutes
"I'm going to do SASL" and the cTAIP method's idea differ a bit!

Digging slightly further, the looks like it might be a difference
between openjdk and the Oracle JVM rather than Linux/OSX.  On openjdk,
j.s.a.l.Configuration.getConfiguration succeeds on every system I've
tried I've tried (admittedly all debian/ubuntu), but the Oracle JVM
throws a SecurityException.
> thanks
> mahadev
> On Tue, Sep 25, 2012 at 3:37 PM, JL <[EMAIL PROTECTED]> wrote:
>> This may be related.  We are not using SSL, but the underlying cause may be the same: socket disconnection or failure to deliver data from the underlying channel.
>> We experienced connection drops (after about ~3000ms) with Curator 1.1.18 and ZK 3.4.4. on openjdk 6 (on Linux), and JDK 7u7 on OS X.
>> Oracle JVM 1.6.0_32 on Linux and v. 1.6.0_35 on OS X, seem to work.
>> Here's the error we get over and over.
>> E 09-25 17:01:35.408 http-bio-8081-exec-7-EventThread c.n.c.f.i.CuratorFrameworkImpl:486 :::] Background operation retry gave up
>> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss
>>         at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) ~[zookeeper-3.4.4.jar:3.4.4-1386507]
>>         at com.netflix.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:448) ~[curator-framework-1.1.18.jar:na]
>>         at com.netflix.curator.framework.imps.BackgroundSyncImpl$1.processResult(BackgroundSyncImpl.java:49) [curator-framework-1.1.18.jar:na]
>>         at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:606) [zookeeper-3.4.4.jar:3.4.4-1386507]
>>         at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:495) [zookeeper-3.4.4.jar:3.4.4-1386507]
>> Cheers,
>> -Julio
>> Sep 25, 2012 02:45:30 PM, [EMAIL PROTECTED] wrote:
>> ==========================================>>
>> I'm having some trouble with the 3.4.4 Java client on Linux (openjdk 6
>> or 7, debian or ubuntu).  It doesn't seem to successfully connect to a
>> server -- this goes for zkCli as well as custom code that uses the
>> client jar.  On OSX, it *does* connect.
>> I've collected the DEBUG-level log output for the process of
>> connecting to my development Zookeeper node (also running 3.4.4),
>> waiting until a Connected event arrives, and sending getChildren("/").
>> The Linux version logs that it will not use SASL and then keeps
>> deferring the getChildren request "until SASL authentication
>> completes".  The exact same (fat) jar running on OSX complains a few
>> times about being "unable to locate a login configuration" but doesn't
>> wait.
>> Using the 3.4.3 client library or earlier does successfully connect,
>> logging only the one message about JAAS that was changed as a result
>> of ZOOKEEPER-1510.
>> On Linux, the output of the 3.4.4 client is:
>> INFO [main] 2012-09-25 14:02:24,521 org.apache.zookeeper.ZooKeeper Client environment:zookeeper.version=3.4.4-1386507, built on 09/17/2012 08:33 GMT
>> INFO [main] 2012-09-25 14:02:24,521 org.apache.zookeeper.ZooKeeper Client environment:host.name=robert.corp.socrata.com