Tap dump of memcached bucket with SASL auth via Java SDK

[Kirill Safonov]

Hi there,

We've got a Memcached bucket on port 11211 (SASL auth) on our Couchbase server. Is there any way we can do a TAP dump using Java API?

When using com.couchbase.client.TapClient an exception is thrown:

Exception in thread "main" java.lang.ClassCastException: com.couchbase.client.CouchbaseMemcachedConnection cannot be cast to com.couchbase.client.CouchbaseConnection

at com.couchbase.client.TapConnectionProvider.reconfigure(TapConnectionProvider.java:90)

at com.couchbase.client.vbucket.ReconfigurableObserver.update(ReconfigurableObserver.java:54)

at java.util.Observable.notifyObservers(Observable.java:142)

at com.couchbase.client.vbucket.BucketMonitor.setBucket(BucketMonitor.java:277)

at com.couchbase.client.vbucket.BucketMonitor.startMonitor(BucketMonitor.java:216)

at com.couchbase.client.vbucket.ConfigurationProviderHTTP.subscribe(ConfigurationProviderHTTP.java:340)

at com.couchbase.client.TapConnectionProvider.<init>(TapConnectionProvider.java:76)

at com.couchbase.client.TapConnectionProvider.<init>(TapConnectionProvider.java:61)

at com.couchbase.client.TapClient.tapDump(TapClient.java:300)

....

On the other hand net.spy.memcached.TapClient does not seem to accept the password that is required to connect to the bucket.

Thanks,

 Kirill

[Kirill Safonov]

Hi!

Can anyone please help?

Kirill

[Aliaksey Kandratsenka]

On Sat, Jan 18, 2014 at 11:30 PM, Kirill Safonov <kirill....@gmail.com> wrote:

Hi!

Can anyone please help?

memcached buckets do not support tap. At all.

[Kirill Safonov]

Thanks Aliaksey,

Is there any way we can dump all the keys/values in the bucket?

Kirill

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[Michael Nitschinger]

I don't think there is a way to do this, you'd have to use couchbase buckets and a view, ideally.

And Aliaksey is right, TAP is only supported for couchbase buckets right now (and so does the couchbase java sdk!)

[Michael Nitschinger]

Oh, one more note.. TAP in general is not officially supported at all (from the client side), the couchbase java implementation is currently "best effort" and has some known limitations.

[Kirill Safonov]

Thanks Mike!