data : 63KiB docs : 108 chunks : 0
estimated data per chunk : 0B
estimated docs per chunk : 0

data : 53KiB docs : 92 chunks : 0
estimated data per chunk : 0B
estimated docs per chunk : 0

Totals
 data : 116KiB docs : 200 chunks : 0
 Shard query_fuzzer-524659-1569598253645-0-rs1 contains 53.86% data, 54% docs in cluster, avg obj size on shard : 597B
 Shard query_fuzzer-524659-1569598253645-0-rs0 contains 46.13% data, 46% docs in cluster, avg obj size on shard : 600B

config.chunks.find({ns: 'fuzzer.fuzzer_coll'}).itcount() = 4 // so there are actually 4, not 0 chunks