[CX] Cannot execute request, cluster is UNUSABLE

Job run:

http://qa.sc.couchbase.com/job/asterix-basic-query-tests

Test run:

python testrunner.py -i local.ini -c conf/cbas/py-tuq-analytics.conf -p analytics=True -p doc-per-day=1 -p standard_buckets=1

local.ini:

[global]

username:root

password:couchbase

#username:Administrator

#password:Membase123

port:8091

n1ql_port:8093

index_port:9102

data_path=/data

index_path=/data

[membase]

rest_username:Administrator

rest_password:password

[servers]

1:_1

[_1]

ip:172.23.108.232

services:kv,n1ql,index

Error seen during teardown:

	"msg": "Cannot execute request, cluster is UNUSABLE"

I am able to reproduce it consistently on this machine.

What the teardown process does?

 if self.analytics == True:

            data = 'use Default ;' + "\n"

            for bucket in self.buckets:

                data += 'disconnect bucket {0} ;'.format(bucket.name) + "\n"

                data += 'drop dataset {0}'.format(bucket.name) + "_shadow ;" + "\n"

                data += 'drop bucket {0} ;'.format(bucket.name) + "\n"

            filename = "file.txt"

            f = open(filename,'w')

            f.write(data)

            f.close()

            url = 'http://{0}:8095/analytics/service'.format(self.master.ip)

            cmd = 'curl -s --data pretty=true --data-urlencode "statement@file.txt" ' + url

            os.system(cmd)

Attaching cbas logs.

Please feel free to use the machine/ini file for some time.