YCSB 0.12.0

Incompatible Changes

• None

Known Issues

• The Cassandra CQL clients do not use prepared statements. (see #458)
• The mongodb binding does not honor the maxPoolSize=XX parameter and instead opens a connection per client thread. (see #317)
• Several unsupported datastore bindings are still listed in CLI help. (see #328)
• The HBase binding does not report a clear error message on encountering version incompatibility. (see #343)
• Datastore drivers that lack timeouts may result in YCSB failing to honor the maxexecutiontime parameter. (see #618)
• Redis Scans are not performant. (see #636)
• "Latest" distribution does not work properly on update transactions. (see #640)
• Accumulo client currently always claims success even when the record it's supposed to operate on (e.g. for a read) doesn't exist. (see #699)
• JDK 9 is not supported. (see #704)
• The Rados client is missing from the properties file for new platform-specific script. (see #790)

Changes

• #837 [azuretablestorage] - Added Azure Table Storage binding
• #776,#850 [cassandra] - Test fixes - Sigar test dependency and logging
• #863 [core] - Support fractional percentile metrics in output format
• #833 [googledatastore] - Upgrade to version v1
• #842,#872 [jdbc] - JDBC fixes
• #848 [orientdb] - Upgrade to 2.2.10 and multithreading bug fixes
• #756 [rest] - Added REST web services binding
• #847 [solr] - Upgrade to 5.5.3
• #849 [solr6] - Add Solr 6 binding
• #852 [packaging] - Fix distribution of bindings.properties
• #712,#854 JDK 9 support fixes

Tested Datastores

Datastore bindings that have been changed in this release and verified as working:

• Apache Solr 5.5.3 (via solr binding).
• 🆕 Apache Solr 6.3.0 (via solr6 binding).
• 🆕 azuretablestorage (via azuretablestorage binding).
• googledatastore (via googledatastore binding).
• [jdbc] JDBC on MySQL and Phoenix (via jdbc binding).
• [rest] REST on Tomcat (via rest binding).
• OrientDB 2.2.10 (via orientdb binding).

Supported bindings, tested in previous releases, unchanged in this release:

• Aerospike (via aerospike binding).
• Amazon S3 (via s3 binding).
• Apache Accumulo 1.6.0 (via accumulo binding).
• Apache Geode (incubating) 1.0.0-incubating.M3 (via geode binding).
• Apache HBase 0.98 (via hbase098 binding).
• Apache HBase 1.0.0 (CDH5.5.2) (via hbase10 bindings).
• Apache Kudu 0.9.0-incubating (via kudu binding)
• ArangoDB 2.8.7 (via arangodb binding).
• Async HBase 1.7 (via asynchbase binding).
• Couchbase2 4.0 and 4.5 (via couchbase2 binding).
• DynamoDB using AWS SDK 1.10.48 (via dynamodb binding).
• Elasticsearch 2.4 (via elasticsearch binding).
• Google Bigtable (via googlebigtable binding).
• Google Bigtable accessing using the HBase client (via hbase10 binding)
• Memcached 1.4.4 (via memcached binding).
• Riak 2.x.y (via riak binding).
• Tarantool 1.6.6-249, 1.6.8, 1.7-alpha (via tarantool binding).

Untested Datastores:

• Apache Cassandra 2.0+ (via cassandra-cql binding)
• Apache Cassandra version 3+ (via cassandra-cql binding)
• Apache HBase prior to 0.98 (via hbase094 binding).
• HyperTable (via hypertable binding).
• Infinispan (via infinispan and infinispan-cs bindings)
• Mapkeeper (via mapkeeper binding)
• NoSQLDB (via nosqldb binding)

Framework Fixes and Changes

• [core] Support fractional percentile metrics in output format. (see #863)
• [core] JDK 9 support fixes. (see #712 and #854)
• [packaging] Fix distribution of bindings.properties. (see #852)

Thanks

This release was tested by the following contributors: @joshelser, @risdenk, @shivam-maharshi, @xiangcong, and @yuyantingzero. Their efforts are highly appreciated.