Distrubute Transaction

[L B]

Hi all:

I'm a newer. I have some concerns about "Distribution Transactions" in v4.2.

1. Does this mean that several client can start a session with the same session id ? and operations like find/insert can in the same transaction?

2. Dose mongodb requite the transactions must in the same session, and a same connections.

I have read mongodb docs about this, but i can not find this ansower.

Any explainations is greatful, thanks.

[David Golden]

Hi, LB.

This group is intended for questions specific to the MongoDB Go driver.  General questions are best asked on the mongodb-user group or on Stackoverflow.

That said, to your questions:

(1) Distributed transaction means that a single client can execute a transaction that spans multiple shards in a sharded cluster.  All shards commit or abort the transaction.

(2) A transaction requires a single client to use a single session to start the transaction.  Connections for a transaction are managed appropriately in the background depending on your topology (it's different for a replica set or sharded cluster).

Regards,

David

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[L B]

thanks.

在 2019年11月5日星期二 UTC+8下午8:32:22，David Golden写道：

Hi, LB.

This group is intended for questions specific to the MongoDB Go driver.  General questions are best asked on the mongodb-user group or on Stackoverflow.

That said, to your questions:

(1) Distributed transaction means that a single client can execute a transaction that spans multiple shards in a sharded cluster.  All shards commit or abort the transaction.

(2) A transaction requires a single client to use a single session to start the transaction.  Connections for a transaction are managed appropriately in the background depending on your topology (it's different for a replica set or sharded cluster).

Regards,

David

On Tue, Nov 5, 2019 at 7:27 AM L B <lxiaop...@126.com> wrote:

Hi all:

I'm a newer. I have some concerns about "Distribution Transactions" in v4.2.

1. Does this mean that several client can start a session with the same session id ? and operations like find/insert can in the same transaction?

2. Dose mongodb requite the transactions must in the same session, and a same connections.

I have read mongodb docs about this, but i can not find this ansower.

Any explainations is greatful, thanks.

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