error parsing in YAML config file

[Raghava Mutharaju]

Hi,

I am using the following YAML config file for MongoDB version 2.8.0-rc4 and I get an error: Error parsing YAML config file: yaml-cpp: error at line 34, column 2: end of map not found

-------------------------------

# Default YAML Configuration file for RPM Packaging

# Replacing legacy mongod.conf format

# See http://docs.mongodb.org/manual/reference/configuration-options/

# Specify where and how to log

# Leave at default verbosity (0)

systemLog:

   destination: file

   path: "/home/ec2-user/mongo-config/log/mongodb.log"

   logAppend: true

#  verbosity: 0

# fork and run in background

# location of pidfile

processManagement:

   fork: true

   pidFilePath: "/home/ec2-user/mongo-config/mongod.pid"

# Listen to local interface only. Comment out to listen on all interfaces. 

# HTTP interface is disabled by default

net:

#   bindIp: 127.0.0.1

   port: 27017

   http:

      enabled: false

storage:

   dbPath: "/home/ec2-user/mongo-config/data"

   engine: "wiredTiger"

   wiredTiger:

        engineConfig: "cache_size=13G"

        collectionConfig: "block_compressor=zlib"

security:

   authorization: disabled

-------------------------------

line 34 is engineConfig. What is the going wrong here?

Regards,

Raghava.

[Asya Kamsky]

You have the syntax slightly wrong.  It should be:

   wiredTiger:

        engineConfig:

             configString: "cache_size=13G"

        collectionConfig: 

             block_compressor: "zlib"

Use "key=value" string syntax as argument to "configString:" only, otherwise it's keyName: "value"

Asya

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[Raghava Mutharaju]

Thank you. I tried that, but I still get the same error.

storage:

   dbPath: "/home/ec2-user/mongo-config/data"

   engine: "wiredTiger"

   wiredTiger:

        engineConfig:

                configString: "cache_size=13G"

        collectionConfig:

                block_compressor: "zlib"

I got the same error.

Error parsing YAML config file: yaml-cpp: error at line 34, column 2: end of map not found

line 34 is engineConfig

Is there something else that I am missing?

Regards,

Raghava.

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[Eric Milkie]

Because the error message says column 2, but your config file appears to have more than 2 space characters on that line before the first printable character, I suspect you may have a literal tab on that line.  That would explain why it thinks the line begins at column "2".
For this whitespace-specific format style of YAML, all your lines must use the same whitespace character.

[Raghava Mutharaju]

Thank you, that was the issue. I had a tab before engineConfig on the next line, just so that it would be properly indented. I replaced it with white space and it worked. But, now I have a different error.

Unrecognized option: storage.wiredTiger.collectionConfig.block_compressor

What is the correction option to set zlib compression?

Regards,

Raghava.

On Fri, Jan 16, 2015 at 8:23 AM, Eric Milkie <mil...@10gen.com> wrote:

Because the error message says column 2, but your config file appears to have more than 2 space characters on that line before the first printable character, I suspect you may have a literal tab on that line.  That would explain why it thinks the line begins at column "2".
For this whitespace-specific format style of YAML, all your lines must use the same whitespace character.

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[Eric Milkie]

It's "blockCompressor";
http://docs.mongodb.org/v2.8/reference/configuration-options/#storage.wiredTiger.collectionConfig.blockCompressor

[Raghava Mutharaju]

that worked, thank you.

Regards,

Raghava.

On Fri, Jan 16, 2015 at 12:40 PM, Eric Milkie <mil...@10gen.com> wrote:

It's "blockCompressor";
http://docs.mongodb.org/v2.8/reference/configuration-options/#storage.wiredTiger.collectionConfig.blockCompressor

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