Scalaris 0.9.0 (codename "Vriesea scalaris") - February 29, 2016 (partly supported by the EU project IES Cities http://iescities.eu/) Packaging: add a libscalaris-dev[el] package with the C++ API (rpm, deb) Maven: let Maven also create a source jar file for the Java-API Maven: allow proper snapshot versions for the maven repository at https://scalaris-team.github.io/scalaris/maven API: CPP-API: provide a new C++ client library DataNucleus: provide a new storage back-end for Scalaris add a Scalaris adapter for YCSB new functions in all APIs for generic routing table operations Business Logic: rrepair: considerably improve the set reconciliation algorithms' performance and run more processes in parallel rrepair: further reduce the reconciliation costs rrepair: re-use left-over failure probability from phase 1 for phase 2 rrepair: increase accuracy in several formulaes of the set reconciliation algorithms rrepair: support creating multiple Merkle trees for fewer message rounds (rr_merkle_num_trees configuration variable) rrepair: remove support for aligning bit sizes (no improvements there) transactions: speed up write ops when the transaction log already contains a read op on the same key RM: optimise the traffic of state exchanges during ring maintenance RT: improve routing parallelism by handling more messages in the routing process itself instead of inside the dht_node process RT: improve performance along the routing path support for dynamic replication factors given by the replication_factor configuration variable pid_groups: shuffle pids in find_a/1 for more better distributed (parallel) requests Infrastructure: pid_groups: group names are now atoms instead of strings (allows faster access) scalarisctl: do not set any default Erlang scheduler flags (allow changes through the ERL_SCHED_FLAGS environment variable) extend the example scripts for running Scalaris on a SLURM cluster add SLURM scripts for running Basho Bench use configure to select the routing table type (--with-rt=rt_chord) change hanoidb detection to configure --enable-hanoidb= change erlang_js detection to configure --enable-erlang-js= dht_node_monitor: switch messages on/off via configuration variable dht_node_monitor msg_delay: remove extraneous error messages for trigger messages of killed processes prbr: allow write_filter to return value to qwrite calling process update yaws to version 2.0.2 support for Erlang R14B04 up to 18.2.3 and current otp master Tests: allow running single test groups via make :_GROUP Tools: gen_component: allow processes to provide their own start functions trace_mpath: write whole message of log_info to the tex output Bugs: fix cleanup of some special cases with transactions fix several math issues and increase the math functions' performance fix some errors which occurred in large scale deployments fix several warnings reported by Coverity Scan fix numerous more bugs