vBucket config parsing failed. Couldn't parse JSON. Raw text in DEBUG level

I am getting these errors from time to time. What could be the problem?

    Oct 22 17:08:12 dv-wb01 GenerateSprites: [cb,EROR] (cccp L:171 I:2824501552) <NOHOST:NOPORT> (CTX=(nil),) Could not get configuration: LCB_ERR_TIMEOUT (201)
    Oct 22 17:08:12 dv-wb01 GenerateSprites: [cb,EROR] (cccp L:171 I:2824501552) <NOHOST:NOPORT> (CTX=(nil),) Could not get configuration: LCB_ERR_TIMEOUT (201)
    Oct 22 17:08:13 dv-wb01 GenerateSprites: [cb,EROR] (cccp L:204 I:2824501552) <NOHOST:NOPORT> (CTX=(nil),) Failed to parse config
    Oct 22 17:08:13 dv-wb01 GenerateSprites: [cb,EROR] (cccp L:205 I:2824501552) vBucket config parsing failed: /builddir/build/BUILD/libcouchbase-3.0.5/src/vbucket/vbucket.c:584 Couldn't parse JSON. Raw text in DEBUG level

especially this one seems very strange:

Oct 22 17:08:13 dv-wb01 GenerateSprites: [cb,EROR] (cccp L:205 I:2824501552) vBucket config parsing failed: /builddir/build/BUILD/libcouchbase-3.0.5/src/vbucket/vbucket.c:584 Couldn’t parse JSON. Raw text in DEBUG level

@avsej, @ingenthr What do you think?

This is really strange, is it possible to get the payload on DEBUG level?

Sent you a direct message with a dump