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cursor.maxAwaitTimeMS()

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  • Definition
  • Example
cursor.maxAwaitTimeMS(<time limit>)

Important

mongosh Method

This page documents a mongosh method. This is not the documentation for a language-specific driver, such as Node.js.

For MongoDB API drivers, refer to the language-specific MongoDB driver documentation.

Specifies the maximum time for the server to wait for new documents that match a tailable cursor query on a capped collection. For more information on iterating a cursor returned by a query, see: Iterate a Cursor in mongosh.

The maxAwaitTimeMS() method has the following prototype form:

db.collection.find(
{ <query> },
{ <projection> }
).tailable( { awaitData: true } ).maxAwaitTimeMS( <milliseconds> )

The maxAwaitTimeMS() method has the following parameter:

Parameter
Type
Description
milliseconds
integer
Specifies a maximum wait time for new documents.

Important

This method, maxAwaitTimeMS(), sets a limit on how long a tailable cursor waits for the next response. maxTimeMS() sets a limit on total processing time.

Query the capped sales collection to find agent Mary Kay's weekly sales totals:

db.sales.find(
{ agent: "Mary Kay" },
{ _id: 0, agent: 1, weeklyTotal: 1 }
).tailable( { awaitData: true } ).maxAwaitTimeMS( 1000 )

The highlighted line creates a tailable cursor on the sales collection. The maxAwaitTimeMS() sets a one second maximum wait time for the next cursor update.

←  cursor.max()cursor.maxTimeMS() →

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