※Cassandra勉強会 in Tokyo, July 25th」発表資料です。
「Apache Cassandra 4.0におけるRepairアーキテクチャ」
2019年中にリリース予定とされる新バージョン4.0ではrepairアーキテクチャが大幅ブラッシュアップされています。Apache Cassandraの運用において大きな影響を与えるrepairアーキテクチャが4.0ではどのように変更されブラッシュアップされているかを4.0の内部実装より解き明かします。
冨田 和孝
株式会社INTHEFOREST 代表取締役社長、日本Cassandraコミュニティーメンバー、データベースエンジニア・システムアーキテクト
ぐるなび、外国為替、ISPなど、DB中心としたシステム構築・運用・保守を担当。高負荷・大容量・大規模なデータ処理・データ解析基盤作りに強み。
Beginner must-see! A future that can be opened by learning HadoopDataWorks Summit
What is "Hadoop" now? It is difficult to hear ... But those who are interested, those who are thinking about the future as active as a data engineer, those who are new to the first time, through introductions of Hadoop and the surrounding ecosystem, introducing merits and examples, "What now Should I learn? "And I will introduce the future spreading through learning Hadoop and the surrounding ecosystem.
Beginner must-see! A future that can be opened by learning HadoopDataWorks Summit
What is "Hadoop" now? It is difficult to hear ... But those who are interested, those who are thinking about the future as active as a data engineer, those who are new to the first time, through introductions of Hadoop and the surrounding ecosystem, introducing merits and examples, "What now Should I learn? "And I will introduce the future spreading through learning Hadoop and the surrounding ecosystem.
4. 自己紹介
Tim Berglund
Global Director of Training
COMPLETED
HAS COMPLETED
Kazutaka Tomita
as a part of the:
DataStax Certific
a
t ion Pr ogram.
Apache CassandraTM
Professional Certifica tion
SEPTEMBER
8
2016
Tim Berglund
Global Director of Training
9. 追加されたOption
-force, --force
Use -force to filter out down endpoints
ダウンノードの除外
-os, --optimise-streams
Use --optimise-streams to try to reduce the number of streams we do
(EXPERIMENTAL, see CASSANDRA-3200).
Streamingの調整
-pp, --print-port
Operate in 4.0 mode with hosts disambiguated by port number
ポートナンバーの明示
-prv, --preview
Determine ranges and amount of data to be streamed, but don't
actually perform repair
実際に処理は行わずに修復量を見積もります。
-vd, --validate
Checks that repaired data is in sync between nodes. Out of sync
repaired data indicates a full repair should be run.
リペアが必要かどうかのチェックを行います。