{"id":1030,"date":"2011-09-28T02:23:12","date_gmt":"2011-09-28T06:23:12","guid":{"rendered":"http:\/\/hstore.cs.brown.edu\/?p=1030"},"modified":"2011-09-28T02:28:30","modified_gmt":"2011-09-28T06:28:30","slug":"new-release-september-2011","status":"publish","type":"post","link":"https:\/\/hstore.cs.brown.edu\/2011\/09\/new-release-september-2011\/","title":{"rendered":"New Release (September 2011)"},"content":{"rendered":"<p id=\"top\" \/>The H-Store project is releasing the latest version of its experimental OLTP DBMS. This latest release includes several performance optimizations for single-partition transactions, as well as new support for internal profiling of various performance metrics.<\/p>\n<p>Major highlights of this release:<\/p>\n<ol>\n<li>The BatchPlanner can now quickly determine whether a query batch will execute entirely on the local partition and will use a cached batch plan if it is. This provides a significant speed improvement for single-partition transactions. (<a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2343\" class=\"websvn\">r2343<\/a>, <a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2344\" class=\"websvn\">r2344<\/a>)<\/li>\n<li>Added the ability to pin the ExecutionSite&#8217;s Java thread to a fixed number of cores (using <a href=\"http:\/\/manpages.ubuntu.com\/manpages\/oneiric\/man1\/taskset.1.html\">taskset<\/a>). All other HStoreSite threads are only allowed to execute on the remaining CPU cores. See the <a href=\"\/documentation\/configuration\/properties-file\/site#cpu_affinity\" class=\"property\">${site.cpu_affinity}<\/a> parameter documentation for more information. (<a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2339\" class=\"websvn\">r2339<\/a>)<\/li>\n<li>New parameter <a href=\"\/documentation\/configuration\/properties-file\/client#txn_hints\" class=\"property\">${client.txn_hints}<\/a> that allows clients to route transaction requests to the proper node in the cluster, thereby reducing two extra network hops. (<a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2312\" class=\"websvn\">r2312<\/a>, <a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2313\" class=\"websvn\">r2313<\/a>)<\/li>\n<li>Fixed automatic distribution of vertically partitioned tables when using the <tt>@LoadMultipartitionTable<\/tt> sysproc. (<a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2317\" class=\"websvn\">r2317<\/a>)<\/li>\n<li>Fixed <tt class=\"ant-target\">hstore-benchmark<\/tt> so that it exits with a non-zero status code when the benchmark fails to execute to completion. (<a href=\"https:\/\/database.cs.brown.edu\/websvn\/revision.php?rev=2266\" class=\"websvn\">r2266<\/a>)<\/li>\n<li>H-Store now includes an automatic deployment script for Amazon EC2 based on <a href=\"http:\/\/fabfile.org\">Fabric<\/a> and <a href=\"http:\/\/code.google.com\/p\/boto\/\">Boto<\/a>. More information can be found <a href=\"\/documentation\/deployment\/ec2-automatic-deployment\">here<\/a>.<\/li>\n<\/ol>\n<p>The source code for this release can be downloaded via anonymous SVN:<\/p>\n<pre><a href=\"https:\/\/database.cs.brown.edu\/svn\/hstore\/tags\/release-2011-09\">https:\/\/database.cs.brown.edu\/svn\/hstore\/tags\/release-2011-09<\/a><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>The H-Store project is releasing the latest version of its experimental OLTP DBMS. This latest release includes several performance optimizations for single-partition transactions, as well as new support for internal profiling of various performance metrics. Major highlights of this release: The BatchPlanner can now quickly determine whether a query batch will execute entirely on the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/posts\/1030"}],"collection":[{"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/comments?post=1030"}],"version-history":[{"count":8,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/posts\/1030\/revisions"}],"predecessor-version":[{"id":1092,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/posts\/1030\/revisions\/1092"}],"wp:attachment":[{"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/media?parent=1030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/categories?post=1030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hstore.cs.brown.edu\/wp-json\/wp\/v2\/tags?post=1030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}