Storagetapper

StorageTapper

Overview

StorageTapper is a scalable realtime MySQL change data streaming, logical backup and logical replication service.

Storagetapper is deployed in production at Uber and used to produce snapshot and realtime changed data of thousands of MySQL tables across multiple datacenters.

It is also used as a backup service to snapshot hundreds of terrabytes of Schemaless data to HDFS and S3 with optional asymmetric encryption and compression.

It reads data from source transforms according to the specified event format and produces data to destination.

Supported event sources:

• MySQL
• Schemaless

Supported event destinations:

• Kafka
• HDFS
• S3
• Local file
• MySQL (experimental)
• Postgres (experimental)
• Clickhouse (experimental)

Supported event formats:

• Avro
• JSON
• MsgPack
• SQL

Features:

• Fields filtering
• Snapshot row filtering
• Producing realtime changes only, i.e. omitting initial snapshot
• Snapshot and changelog events ordering
• Periodic snapshots
• Snapshot index hinting

Storagetapper keeps its jobs state in MySQL database and automatically distributes jobs between configured number of workers.

It is also aware of node roles and takes snapshot from the slave nodes in order to reduce load on master nodes. StorageTapper can also optionally further throttle its reads. Binlogs are streamed from master nodes for better SLAs.

Service is dynamically configurable through RESTful API or built-in UI.

Build & Install

Debian & Ubuntu

cd storagetapper
make deb && dpkg -i ../storagetapper_1.0_amd64.deb

Others

cd storagetapper
make && make install

Development

Linux

/bin/bash scripts/install_deps.sh # install all dependencies: MySQL, Kafka, HDFS, S3, ...
make test # run all tests
GO111MODULE=on TEST_PARAM="-test.run=TestLocalBasic" /bin/bash scripts/run_tests.sh ./pipe # individual test

Non Linux

make test-env
$ make test

Configuration

Storagetapper loads configuration from the following files and location in the given order:

    /etc/storagetapper/base.yaml
    /etc/storagetapper/production.yaml
    $(HOME)/base.yaml
    $(HOME)/production.yaml
    $(STORAGETAPPER_CONFIG_DIR)/base.yaml
    $(STORAGETAPPER_CONFIG_DIR)/production.yaml

Available options described in Configuration section

License

This software is licensed under the MIT License.