Several major changes in hyracks:
-- reduced CC/NC communications for reporting partition request and availability; partition request/availability are only reported for the case of send-side materialized (without pipelining) policies in case of task re-attempt.
-- changed buffer cache to dynamically allocate memory based on needs instead of pre-allocating
-- changed each network channel to lazily allocate memory based on needs, and changed materialized connectors to lazily allocate files based on needs
-- changed several major CCNCCFunctions to use non-java serde
-- added a sort-based group-by operator which pushes group-by aggregations into an external sort
-- make external sort a stable sort
1,3,and 4 is to reduce the job overhead.
2 is to reduce the unecessary NC resource consumptions such as memory and files.
5 and 6 are improvements to runtime operators.
One change in algebricks:
-- implemented a rule to push group-by aggregation into sort, i.e., using the sort-based gby operator
Several important changes in pregelix:
-- remove static states in vertex
-- direct check halt bit without deserialization
-- optimize the sort algorithm by packing yet-another 2-byte normalized key into the tPointers array
Change-Id: Id696f9a9f1647b4a025b8b33d20b3a89127c60d6
Reviewed-on: http://fulliautomatix.ics.uci.edu:8443/35
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <westmann@gmail.com>
diff --git a/pom.xml b/pom.xml
index 654afc8..330d2bb 100644
--- a/pom.xml
+++ b/pom.xml
@@ -25,7 +25,7 @@
<jvm.extraargs />
<!-- Definition of tests in various categories which may be excluded -->
- <hanging.pregelix.tests>**/pregelix/**/*.java</hanging.pregelix.tests>
+ <hanging.pregelix.tests>**/pregelix/**/FailureRecovery*.java</hanging.pregelix.tests>
<hivesterix.perf.tests>**/hivesterix/perf/PerfTestSuite.java</hivesterix.perf.tests>
<global.test.includes>**/*TestSuite.java,**/*Test.java</global.test.includes>
<global.test.excludes>**/Abstract*.java,${hanging.pregelix.tests},${hivesterix.perf.tests}</global.test.excludes>