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This document lists all limits for Google Cloud Search features. The limits
are split into four groups: Indexing, Schema,
Serving, and Synonyms.
Indexing limits
Feature
Limit
Notes
Maximum size of each document field
1 MB
Only the first 1 MB of content in each field, including ItemContent.content, is indexed.
Maximum size of the indexable content per document
10 MB
Cloud Search indexes up to the first 10 MB of a document regardless of whether the document is larger.
Maximum document size of document
50 MB
If your document is larger than this threshold, the indexing API returns an error.
Maximum ACL hierarchy depth
20 levels
If your ACL hierarchy is larger, the indexing API returns an error.
Maximum folder hierarchy depth
32 levels
If your folder hierarchy is larger, the indexing API returns an error.
Maximum number of data sources per customer
50
This limit can be increased in some cases. Contact support for help.
Maximum number of data sources per search application
10
This limit can be increased in some cases. Contact support for help.
Maximum number of search applications per customer
25
This limit can be increased in some cases. Contact support for help.
Maximum number of identity sources per customer
100
Each identity source is backed by a new custom attribute in the Directory API user schema. The Directory API allows 100 custom attributes in the schema. If you’ve set custom attributes for other purposes, the number of identity sources you can create is reduced by the same amount.
Maximum number of Google identities that an external identity can map to
2
This limit can be increased in some cases. Contact support for help.
Maximum number of service accounts allowed per identity source
5
This limit can be increased in some cases. Contact support for help.
Maximum number of external identities per item
100
An external group identity only counts once for the limit.
Maximum indexing API calls per second per Google Cloud project
100
This limit allows Google Cloud Search to maintain service quality for all customers.
Schema limits
Feature
Limit
Notes
Maximum number of schemas per data source
1
Each data source can only have one schema.
Maximum number of sortable fields per object
10
This limit can be increased in some cases. Contact support for help.
Maximum number of facetable fields per object
10
This limit can be increased in some cases. Contact support for help.
Maximum number of wildcard fields per schema
5
Maximum number of suggestable fields per schema
20
Maximum operators per schema
50
This limit does not include less than or greater than operators.
Number of distinct objects
10
Maximum number of distinct objects, each representing a logical sub-schema, that are allowed in the schema for a data source. This limit can be increased in some cases*.
Maximum number of properties for a given object, including nested properties.
1000
Maximum property hierarchy depth
10
Each object can only have nesting of property definitions up to 10 levels deep.
Maximum structured data size
0.5 MB
The total size of the structured data per item should not exceed 0.5 MB.
Maximum item metadata size
0.5 MB
The total size of the item metadata per item should not exceed 0.5 MB.
Search query limits
Feature
Limit
Notes
Maximum number of results from each data source for a query
5000
This limit is directly derived from the maximum number of distinct ACLs that are evaluated for each data source and whether the data source used uniform ACLs.
Maximum number of individually ACLed results for which facet counts are shown
500
For data sources with uniform ACLs, this limit doesn't apply. For data sources with per-item ACLs, facet value counts are shown only if total results is less than or equal to 500. To get more accurate counts, create a VirtualContainer for each group of items that share the same ACL and have items inherit ACLs from their corresponding container.
Number of results for which facet counts are shown
300000
For a data source, if the query hits over 300000 results, the facet counts are not shown regardless of the type of ACLed result (per-item or uniform).
Maximum number of facet values for each facetable field in a query
100
For example, the number distinct authors that are returned for Author field.
Synonyms limits
Feature
Limit
Notes
Maximum number of synonyms per term
Equal to maximum # of values for a property
Maximum number of terms
Based on your quota as they count toward number of indexed documents
Max # of terms w/synonyms that could be used in a query
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-12-19 UTC."],[[["Google Cloud Search enforces limits on indexing, schema, serving, and synonyms to maintain service quality and efficiency."],["Indexing limits include maximum document and field sizes, data source and application counts, and API call rates."],["Schema limits restrict the number of fields, objects, properties, and overall structured data size for each data source."],["Search query limits cap the number of results, facet counts, and facet values returned for a query."],["Synonym limits restrict the number of synonyms per term and the overall number of terms with synonyms."]]],[]]
