[mongodb-user] Why does not the "db.cloneCollection()" work as it says?

On Sun, Aug 5, 2012 at 7:00 PM, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?


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On Sun, Aug 5, 2012 at 7:19 PM, Sergei Tulentsev wrote:

I think your syntax is wrong.
This is what documentation says:
http://www.mongodb.org/display/DOCS/cloneCollection+Command



--
Best regards,
Sergei Tulentsev

On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?



On Sunday, August 5, 2012 11:00:42 PM UTC+8, Yang wrote:

I try to use "db.cloneCollection()" command to copy a collection from one
database(remote) to another, but I can't see the collection in the
destination database. Why? Here is what I did:
On host A (IP : 192.168.1.11), I have a collection named "user_info" in
the database "test".
On Host B (IP: 192.168.1.22), I run the following command within the mongo
shell:
db.cloneCollection("192.168.1.11", "test.user_info")

The "user_info" collection is small, only tens of documents. The command
completed quickly with an output message: "{ "ok" : 1 }", but when I try to
check the results with the following command:
db.getCollectionNames()
there is no collection named "user_info" which I hoped to have copied from
the remote to local database.
Did I missed something?

On Monday, August 6, 2012 1:46:24 AM UTC+10, Yang wrote:

Do I have to use the same database name at the destination host, or I can
choose to clone a collection to a database with different name?