starting mongodb error after replacing the storage engine to rocksdb

[林森]

I want to change  the mongodb's storage engine from WiredTiger to RocksDB, Ｉmake all steps accroding to the instruction in mongo-rocksdb's github project.

Here is the detail setps:

# install compression libraries (zlib, bzip2, snappy):
sudo apt-get install zlib1g-dev; sudo apt-get install libbz2-dev; sudo apt-get install libsnappy-dev
# get rocksdb
git clone https://github.com/facebook/rocksdb.git
# compile rocksdb
cd rocksdb; make static_lib; sudo INSTALL_PATH=/usr make install; cd ..
# get mongo
git clone https://github.com/mongodb/mongo.git
# get mongorocks
git clone https://github.com/mongodb-partners/mongo-rocks
# add rocksdb module to mongo
mkdir -p mongo/src/mongo/db/modules/
ln -sf ./mongo-rocks mongo/src/mongo/db/modules/rocks
# compile mongo
cd mongo; scons

Start mongod using the --storageEngine=rocksdb option

last, I use commmand: ./mongod --dbpath ~/mongo/data --storageEngine=rocksdb

but there has errors, the detail below:

2017-07-03T21:04:19.827+0800 I CONTROL  [initandlisten] MongoDB starting : pid=14860 port=27017 dbpath=/home/zhaoj/mongo/data 64-bit host=zhaoj
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] db version v3.5.9-162-gedc858c
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] git version: edc858ca3a32974c07f027e6860a52ac6e89039b
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] allocator: tcmalloc
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] modules: none
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] build environment:
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten]     distarch: x86_64
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten]     target_arch: x86_64
2017-07-03T21:04:19.828+0800 I CONTROL  [initandlisten] options: { storage: { dbPath: "/home/zhaoj/mongo/data", engine: "rocksdb" } }
2017-07-03T21:04:19.829+0800 I STORAGE  [initandlisten] exception in initAndListen: 18656 Cannot start server with an unknown storage engine: rocksdb, terminating
2017-07-03T21:04:19.829+0800 I NETWORK  [initandlisten] shutdown: going to close listening sockets...
2017-07-03T21:04:19.829+0800 I NETWORK  [initandlisten] shutdown: going to flush diaglog...
2017-07-03T21:04:19.829+0800 I CONTROL  [initandlisten] now exiting
2017-07-03T21:04:19.829+0800 I CONTROL  [initandlisten] shutting down with code:100

My OS is ubuntu 16.04,  I really don't know how to fix the problem... Could anyone help me ??

[Igor Canadi]

Can you try percona's build that's precompiled and includes MongoRocks: https://www.percona.com/doc/percona-server-for-mongodb/LATEST/mongorocks.html

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[林森]

I installed Percona and it worked well when using --storageEngine=rocksdb.  But I still want to change the storageEngine to rocksdb in mongodb.....

在 2017年7月4日星期二 UTC+8上午2:22:08，Igor Canadi写道：

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