yugabyte/yugabyte-db v0.9.5.0

0.9.5 (Feb 16, 2018)

on GitHub

Overview of changes

• Support for natively running YugaByte DB using Kubernetes StatefulSets! YugaByte DB now works in GKE as well.
• Distributed transactions supported at isolation level SNAPSHOT ISOLATION.
• HINCRBY support in Redis API.
• Defaults for CQL client driver switched to strong consistency.
• Lots of performance enhancements and fixes. Notably - lock free hybric clock implementation. New YugaByte perf report uploaded.
• Improved debuggability - added slow query logging for Redis.
• Overhauled the third party build system to make it more readable and easy to maintain.

Thanks

• @mchang31415 for reporting a number of perf issues.
• @praneeth-nimmagadda for reporting issues with the COUNTER datatype.
• @nickhristov for pointing out that duplicate primary keys in a batch are not getting loaded

Key commits

• [2150bee] Added AWS C++ SDK 3rd party.
• [8d8030f] Fix TransactionManager destruction
• [9546e7e] Fix counter column datatype in system_schema.columns.
• [3074f56] Allow multiple writes of the same row within a batch request.
• [8ee1288] Update 3rd party version for mac
• [cfd54dd] Periodic timers
• [2292067] Implement HIncrBy
• [7a7421f] Fix a CHECK failure due to handling of slow responses when looking for leader master
• [bed88c9] Create cloud-machine-types-analysis.md
• [90ae07b] Update yb-perf-0.9.5rc-Feb-13.md
• [ab9deaa] Set defaults for read_pool_* flags
• [eb32648] #51: Kubernetes cname only tries the first ip address on GKE (#53)
• [2dbd7e8] Update yugabyte-statefulset.yaml
• [0c87387] Fix master UI to show only running tables
• [c294304] Capture by reference to avoid copies during HMGet
• [c6d2635] High CPU usage in CleanWaitingConnections
• [d4fd22c] Print slow queries for Redis. Similar to CQL
• [6488bfd] Set GLOG flag so that we do not sync for WARNING messages
• [e230091] Fix parsing of tcmalloc max thread cache bytes.
• [54121c0] Added tests for ImportSnapshotMeta.
• [072595a] Update Cassandra Java driver versions to use default YB_STRONG consistency level.
• [c62d02a] Make HybridClock Now/Update lock-free
• [4fa3118] Parallelize reads for Redis ops in the same TabletService::Read request
• [8cd931c] Increase tcmalloc local thread cache size for tservers.
• [3ef0019] Reuse iterator for Redis Operations
• [dfb16c9] Prevent core dumps for LOG(FATAL) and CHECK.
• [07ffec9] Fix QLTabletTest.SkewedClocks and other safe time logic in MvccManager
• [58c97d3] Change YQL transaction isolation level to SNAPSHOT_ISOLATON.