WiredTiger version string WiredTiger 2.7.1: (December 8, 2015) WiredTiger version major=2,minor=7,patch=1 file:WiredTiger.wt allocation_size=4KB,app_metadata=,block_allocation=best,block_compressor=,cache_resident=0,checkpoint=(WiredTigerCheckpoint.574923=(addr="018681e45e6fe8038781e49a4510f68881e446d5d42b808080e30e3fc0e48c64afc0",order=574923,time=1519574265,size=2355417088,write_gen=1859593)),checkpoint_lsn=(217,128),checksum=uncompressed,collator=,columns=,dictionary=0,encryption=(keyid=,name=),format=btree,huffman_key=,huffman_value=,id=0,internal_item_max=0,internal_key_max=0,internal_key_truncate=,internal_page_max=4KB,key_format=S,key_gap=10,leaf_item_max=0,leaf_key_max=0,leaf_page_max=32KB,leaf_value_max=0,log=(enabled=),memory_page_max=5MB,os_cache_dirty_max=0,os_cache_max=0,prefix_compression=0,prefix_compression_min=4,split_deepen_min_child=0,split_deepen_per_child=0,split_pct=75,value_format=S,version=(major=1,minor=1)