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https://github.com/scylladb/scylladb.git
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eb81b31132
his patch adds a statistics framework to Alternator: Executor has (for each shard) a _stats object which contains counters for various events, and also is in charge of making these counters visible via Scylla's regular metrics API (http://localhost:9180/metrics). This patch includes a counter for each of DynamoDB's operation types, and we increase the ones we support when handled. We also added counters for total operations and unsupported operations (operation types we don't yet handle). In the future we can easily add many more counters: Define the counter in stats.hh, export it in stats.cc, and increment it in where relevant in executor.cc (or server.cc). Signed-off-by: Nadav Har'El <nyh@scylladb.com>
71 lines
3.1 KiB
C++
71 lines
3.1 KiB
C++
/*
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* Copyright 2019 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* See the LICENSE.PROPRIETARY file in the top-level directory for licensing information.
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*/
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#include "stats.hh"
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#include <seastar/core/metrics.hh>
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namespace alternator {
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const char* ALTERNATOR_METRICS = "alternator";
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stats::stats() : api_operations{} {
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// Register the
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_metrics.add_group("alternator_operation", {
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#define OPERATION(name, CamelCaseName) \
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seastar::metrics::make_total_operations(#name, api_operations.name, \
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seastar::metrics::description("number of " CamelCaseName " operations via Alternator API")),
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OPERATION(batch_write_item, "BatchWriteItem")
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OPERATION(create_backup, "CreateBackup")
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OPERATION(create_global_table, "CreateGlobalTable")
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OPERATION(create_table, "CreateTable")
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OPERATION(delete_backup, "DeleteBackup")
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OPERATION(delete_item, "DeleteItem")
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OPERATION(delete_table, "DeleteTable")
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OPERATION(describe_backup, "DescribeBackup")
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OPERATION(describe_continuous_backups, "DescribeContinuousBackups")
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OPERATION(describe_endpoints, "DescribeEndpoints")
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OPERATION(describe_global_table, "DescribeGlobalTable")
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OPERATION(describe_global_table_settings, "DescribeGlobalTableSettings")
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OPERATION(describe_limits, "DescribeLimits")
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OPERATION(describe_table, "DescribeTable")
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OPERATION(describe_time_to_live, "DescribeTimeToLive")
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OPERATION(get_item, "GetItem")
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OPERATION(list_backups, "ListBackups")
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OPERATION(list_global_tables, "ListGlobalTables")
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OPERATION(list_tables, "ListTables")
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OPERATION(list_tags_of_resource, "ListTagsOfResource")
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OPERATION(put_item, "PutItem")
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OPERATION(query, "Query")
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OPERATION(restore_table_from_backup, "RestoreTableFromBackup")
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OPERATION(restore_table_to_point_in_time, "RestoreTableToPointInTime")
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OPERATION(scan, "Scan")
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OPERATION(tag_resource, "TagResource")
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OPERATION(transact_get_items, "TransactGetItems")
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OPERATION(transact_write_items, "TransactWriteItems")
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OPERATION(untag_resource, "UntagResource")
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OPERATION(update_continuous_backups, "UpdateContinuousBackups")
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OPERATION(update_global_table, "UpdateGlobalTable")
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OPERATION(update_global_table_settings, "UpdateGlobalTableSettings")
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OPERATION(update_item, "UpdateItem")
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OPERATION(update_table, "UpdateTable")
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OPERATION(update_time_to_live, "UpdateTimeToLive")
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});
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_metrics.add_group("alternator", {
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seastar::metrics::make_total_operations("unsupported_operations", unsupported_operations,
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seastar::metrics::description("number of unsupported operations via Alternator API")),
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seastar::metrics::make_total_operations("total_operations", total_operations,
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seastar::metrics::description("number of total operations via Alternator API")),
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});
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}
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}
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