I am on a mac starting mongo from terminal via command:

sudo mongod -storageEngine wiredTiger --directoryperdb --dbpath /mongodb/data --setParameter failIndexKeyTooLong=false

 

And I get:

 

2020-11-11T01:12:59.114+0200 I STORAGE  [initandlisten] wiredtiger_open config: create,cache_size=8G,session_max=20000,eviction=(threads_max=4),statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),checkpoint=(wait=60,log_size=2GB),statistics_log=(wait=0),

2020-11-11T01:13:04.809+0200 E STORAGE  [initandlisten] WiredTiger (24) [1605049984:809579][2786:0x7fff768bd300], file:e3/collection-917--6708257915232949607.wt, session.open_cursor: /Users/x/mongodb/data/e3/collection-917--6708257915232949607.wt: Too many open files

2020-11-11T01:13:04.809+0200 I -        [initandlisten] Invariant failure: ret resulted in status UnknownError 24: Too many open files at src/mongo/db/storage/wiredtiger/wiredtiger_session_cache.cpp 78

2020-11-11T01:13:04.816+0200 I CONTROL  [initandlisten]

0x10bf8ad79 0x10bf3e5a0 0x10bf2ba25 0x10bdba9a9 0x10bdb94e4 0x10bdb5511 0x10bdb32cc 0x10bdaff6a 0x10bdac7e4 0x10bd28168 0x10bd2afa9 0x10bdaa11c 0x10bab88cc 0x10b81a7c8 0x10b819f53 0x10b81ee9c 0x10b819f34

----- BEGIN BACKTRACE -----

{"backtrace":[\{"b":"10B819000","o":"771D79"}

,{"b":"10B819000","o":"7255A0"},{"b":"10B819000","o":"712A25"},{"b":"10B819000","o":"5A19A9"},{"b":"10B819000","o":"5A04E4"},{"b":"10B819000","o":"59C511"},{"b":"10B819000","o":"59A2CC"},{"b":"10B819000","o":"596F6A"},{"b":"10B819000","o":"5937E4"},{"b":"10B819000","o":"50F168"},{"b":"10B819000","o":"511FA9"},{"b":"10B819000","o":"59111C"},{"b":"10B819000","o":"29F8CC"},{"b":"10B819000","o":"17C8"},{"b":"10B819000","o":"F53"},{"b":"10B819000","o":"5E9C"},{"b":"10B819000","o":"F34"}],"processInfo":{ "mongodbVersion" : "3.0.1", "gitVersion" : "534b5a3f9d10f00cd27737fbcd951032248b5952", "uname" :

{ "sysname" : "Darwin", "release" : "14.5.0", "version" : "Darwin Kernel Version 14.5.0: Sun Jun  4 21:40:08 PDT 2017; root:xnu-2782.70.3~1/RELEASE_X86_64", "machine" : "x86_64" }

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mongod(ZN5mongo15printStackTraceERNSt3_113basic_ostreamIcNS0_11char_traitsIcEEEE+0x39) [0x10bf8ad79]

mongod(_ZN5mongo10logContextEPKc+0x100) [0x10bf3e5a0]

mongod(_ZN5mongo17invariantOKFailedEPKcRKNS_6StatusES1_j+0x175) [0x10bf2ba25]

mongod(ZN5mongo17WiredTigerSession9getCursorERKNSt3_112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEyb+0x1A9) [0x10bdba9a9]

mongod(ZN5mongo16WiredTigerCursorC2ERKNSt3_112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEEybPNS_16OperationContextE+0x84) [0x10bdb94e4]

mongod(_ZN5mongo21WiredTigerRecordStore8IteratorC2ERKS0_PNS_16OperationContextERKNS_8RecordIdERKNS_20CollectionScanParams9DirectionEb+0x61) [0x10bdb5511]

mongod(_ZNK5mongo21WiredTigerRecordStore11getIteratorEPNS_16OperationContextERKNS_8RecordIdERKNS_20CollectionScanParams9DirectionE+0x6C) [0x10bdb32cc]

mongod(_ZN5mongo21WiredTigerRecordStoreC2EPNS_16OperationContextERKNS_10StringDataES5_bxxPNS_28CappedDocumentDeleteCallbackEPNS_20WiredTigerSizeStorerE+0x38A) [0x10bdaff6a]

mongod(_ZN5mongo18WiredTigerKVEngine14getRecordStoreEPNS_16OperationContextERKNS_10StringDataES5_RKNS_17CollectionOptionsE+0x134) [0x10bdac7e4]

mongod(ZN5mongo22KVDatabaseCatalogEntry14initCollectionEPNS_16OperationContextERKNSt3_112basic_stringIcNS3_11char_traitsIcEENS3_9allocatorIcEEEEb+0x158) [0x10bd28168]

mongod(_ZN5mongo15KVStorageEngineC2EPNS_8KVEngineERKNS_22KVStorageEngineOptionsE+0x919) [0x10bd2afa9]

mongod(ZNK5mongo12_GLOBAL_N_117WiredTigerFactory6createERKNS_19StorageGlobalParamsERKNS_21StorageEngineLockFileE+0x11C) [0x10bdaa11c]

mongod(ZN5mongo23GlobalEnvironmentMongoD22setGlobalStorageEngineERKNSt3_112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE+0x27C) [0x10bab88cc]

mongod(_ZN5mongoL14_initAndListenEi+0x328) [0x10b81a7c8]

mongod(_ZN5mongo13initAndListenEi+0x13) [0x10b819f53]

mongod(main+0x3BC) [0x10b81ee9c]

mongod(start+0x34) [0x10b819f34]

-----  END BACKTRACE  -----

2020-11-11T01:13:04.817+0200 I -        [initandlisten]

 

***aborting after invariant() failure

 

 

Any help would be be appreciated, thanks!