DynamoDB
DynamoDB architecture overview
This filter should be configured with the type URL
type.googleapis.com/envoy.extensions.filters.http.dynamo.v3.Dynamo
.
Statistics
The DynamoDB filter outputs statistics in the http.<stat_prefix>.dynamodb.
namespace. The stat prefix comes from the
owning HTTP connection manager.
Per operation stats can be found in the http.<stat_prefix>.dynamodb.operation.<operation_name>.
namespace.
Name
Type
Description
upstream_rq_total
Counter
Total number of requests with
<operation_name>
upstream_rq_time
Histogram
Time spent on
<operation_name>
upstream_rq_total_xxx
Counter
Total number of requests with
<operation_name>
per response code (503/2xx/etc)upstream_rq_time_xxx
Histogram
Time spent on
<operation_name>
per response code (400/3xx/etc)
Per table stats can be found in the http.<stat_prefix>.dynamodb.table.<table_name>.
namespace.
Most of the operations to DynamoDB involve a single table, but BatchGetItem and BatchWriteItem can
include several tables, Envoy tracks per table stats in this case only if it is the same table used
in all operations from the batch.
Name
Type
Description
upstream_rq_total
Counter
Total number of requests on
<table_name>
tableupstream_rq_time
Histogram
Time spent on
<table_name>
tableupstream_rq_total_xxx
Counter
Total number of requests on
<table_name>
table per response code (503/2xx/etc)upstream_rq_time_xxx
Histogram
Time spent on
<table_name>
table per response code (400/3xx/etc)
Disclaimer: Please note that this is a pre-release Amazon DynamoDB feature that is not yet widely available.
Per partition and operation stats can be found in the http.<stat_prefix>.dynamodb.table.<table_name>.
namespace. For batch operations, Envoy tracks per partition and operation stats only if it is the same
table used in all operations.
Name
Type
Description
capacity.<operation_name>.__partition_id=<last_seven_characters_from_partition_id>
Counter
Total number of capacity for
<operation_name>
on<table_name>
table for a given<partition_id>
Additional detailed stats:
For 4xx responses and partial batch operation failures, the total number of failures for a given table and failure are tracked in the
http.<stat_prefix>.dynamodb.error.<table_name>.
namespace.Name
Type
Description
<error_type>
Counter
Total number of specific
<error_type>
for a given<table_name>
BatchFailureUnprocessedKeys
Counter
Total number of partial batch failures for a given
<table_name>
Runtime
The DynamoDB filter supports the following runtime settings:
- dynamodb.filter_enabled
The % of requests for which the filter is enabled. Default is 100%.