Minor - P4 I hit an fassert when trying to use --inMemoryEngineConfigString. (Which to be fair, I think is undocumented, but the error here seems clear enough to be worth reporting.)
2017-03-02T18:48:21.159+0000 I CONTROL [initandlisten] options: { processManagement: { fork: true }, security: { authorization: "enabled" }, setParameter: { diagnosticDataCollectionEnabled: "false", ttlMonitorEnabled: "false" }, storage: { dbPath: "./dbdata", engine: "inMemory", inMemory: { engineConfig: { configString: "eviction=(threads_min=0)", inMemorySizeGB: 60.0 } }, syncPeriodSecs: 0.0 }, systemLog: { destination: "file", path: "./mongod.log" } }
2017-03-02T18:48:21.177+0000 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=61440M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=0,log_size=2GB),statistics_log=(wait=0),verbose=(recovery_progress),eviction=(threads_min=0)in_memory=true,log=(enabled=false),file_manager=(close_idle_time=0),checkpoint=(wait=0,log_size=0),log=(enabled=false),
2017-03-02T18:48:21.177+0000 E STORAGE [initandlisten] WiredTiger error (22) [1488480501:177866][4369:0x7fdf41630d60], wiredtiger_open: Error parsing 'create,cache_size=61440M,session_max=20000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000),checkpoint=(wait=0,log_size=2GB),statistics_log=(wait=0),verbose=(recovery_progress),eviction=(threads_min=0)in_memory=true,log=(enabled=false),file_manager=(close_idle_time=0),checkpoint=(wait=0,log_size=0),log=(enabled=false),' at offset 328: New value starts without a separator: Invalid argument
2017-03-02T18:48:21.177+0000 I - [initandlisten] Fatal Assertion 28561 at src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp 268
2017-03-02T18:48:21.177+0000 I - [initandlisten]
***aborting after fassert() failure
It seems to me that in wiredTiger, the EngineConfigString is appended last, but in inMemory there are still some inMemory-specific options appended to the end, and there's a comma missing when that is done.
- is related to
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SERVER-28169 Set eviction=(threads_min=1) in Microbenchmarks testing
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- Closed
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