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IDS Forum

JSON Listener: "unknown top level operator: $sql",

Posted By: JUAN ROCA
Date: Thursday, 12 May 2016, at 2:14 p.m.

Hello everybody,

I wonder if you could give me a light on this subject:

I'm trying to execute an sql command throu mongoDB Api but get the following error "errmsg" : "unknown top level operator: $sql".
It seems as if the api would not recognize the wiredListener.

Here are the details about the configuration:

IDS: 12.10.FC5
MONGO SERVER: mongo 3.2.6 (Community Edition)

1. Starting mongoDB Server. Apparently succesfuly started.

[informix@aldextra3 db]$ mongod

2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] MongoDB starting : pid=34203 port=27017 dbpath=/data/db 64-bit host=aldextra3.localdomain
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] db version v3.2.6
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] git version: 05552b562c7a0b3143a729aaa0838e558dc49b25
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] allocator: tcmalloc
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] modules: none
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] build environment:
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] distmod: rhel62
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] distarch: x86_64
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] target_arch: x86_64
2016-05-12T19:36:44.537+0200 I CONTROL [initandlisten] options: {}
2016-05-12T19:36:44.575+0200 I - [initandlisten] Detected data files in /data/db created by the 'wiredTiger' storage engine, so setting the active storage engine to 'wiredTiger'.
2016-05-12T19:36:44.575+0200 I STORAGE [initandlisten] wiredtiger_open config: create,cache_size=4G,session_max=20000,eviction=(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=60,log_size=2GB),statistics_log=(wait=0),
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten]
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** WARNING: /proc/sys/vm/overcommit_memory is 2
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** Journaling works best with it set to 0 or 1
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten]
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten]
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten] ** We suggest setting it to 'never'
2016-05-12T19:36:45.153+0200 I CONTROL [initandlisten]
2016-05-12T19:36:45.155+0200 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/'
2016-05-12T19:36:45.155+0200 I NETWORK [HostnameCanonicalizationWorker] Starting hostname canonicalization worker
2016-05-12T19:36:45.156+0200 I NETWORK [initandlisten] waiting for connections on port 27017

2. Vi sqlhosts

ol_informix1210 onsoctcp aldextra3.localdomain ol_informix1210
dr_informix1210 drsoctcp aldextra3.localdomain dr_informix1210
lo_informix1210 onsoctcp lo_informix1210

3. vi


4. execute function task('start json listener')

5. vi ol_informix1210_jsonListener.log. Apparently succesfuly started.

{ date: "2016-05-12 19:13:07.546" , thread: "MongoListener-1" , level: "INFO " , source: c.i.nosql.server.mongo.MongoListener , message: "JSON server listening on port: 27017, localhost/0:0:0:0:0:0:0:1" }

6. Starting mongoDB Client

mongo localhost:27017

7. Using the api:

>use stores_demo
switched to db stores_demo

> db.getCollection("$sql").find({ "$sql": "create table foo (c1 int)" })
Error: error: {

"waitedMS" : NumberLong(0),

"ok" : 0,

"errmsg" : "unknown top level operator: $sql",

"code" : 2

I'm sorry if this mail is too long, but I think all the information is worth the trouble.

Thanks a lot,

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