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Type: Question
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Resolution: Gone away
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Priority: Major - P3
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None
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Affects Version/s: None
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Component/s: WiredTiger
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Labels:None
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Environment:Ubuntu
I upgraded Mongo on my Ubuntu computer. Got this message. I tried a whole lot of things. Please advise.
```
mongod
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] MongoDB starting : pid=26219 port=27017 dbpath=/data/db 64-bit host=risksheet
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] db version v3.6.6
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] git version: 6405d65b1d6432e138b44c13085d0c2fe235d6bd
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.2g 1 Mar 2016
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] allocator: tcmalloc
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] modules: none
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] build environment:
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] distmod: ubuntu1604
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] distarch: x86_64
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] target_arch: x86_64
2018-08-09T21:53:20.537-0400 I CONTROL [initandlisten] options: {}
2018-08-09T21:53:20.537-0400 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2018-08-09T21:53:20.537-0400 I STORAGE [initandlisten]
2018-08-09T21:53:20.538-0400 I STORAGE [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2018-08-09T21:53:20.538-0400 I STORAGE [initandlisten] ** See http://dochub.mongodb.org/core/prodnotes-filesystem
2018-08-09T21:53:20.538-0400 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=991M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),cache_cursors=false,compatibility=(release="3.0",require_max="3.0"),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),statistics_log=(wait=0),verbose=(recovery_progress),
2018-08-09T21:53:21.472-0400 E STORAGE [initandlisten] WiredTiger error (-31802) [1533866001:472274][26219:0x7fbb7b8b19c0], connection: Version incompatibility detected: unsupported WiredTiger file version: this build requires a maximum version of 2, and the file is version 3: WT_ERROR: non-specific WiredTiger error
2018-08-09T21:53:21.477-0400 E - [initandlisten] Assertion: 28595:-31802: WT_ERROR: non-specific WiredTiger error src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp 421
2018-08-09T21:53:21.478-0400 I STORAGE [initandlisten] exception in initAndListen: Location28595: -31802: WT_ERROR: non-specific WiredTiger error, terminating
2018-08-09T21:53:21.478-0400 I NETWORK [initandlisten] shutdown: going to close listening sockets...
2018-08-09T21:53:21.478-0400 I NETWORK [initandlisten] removing socket file: /tmp/mongodb-27017.sock
2018-08-09T21:53:21.478-0400 I CONTROL [initandlisten] now exiting
2018-08-09T21:53:21.478-0400 I CONTROL [initandlisten] shutting down with code:100
root@risksheet:/opt/marc#```