The problem still occurs frequently, for example, in https://jenkins02.trafodion.org/job/core-regress-seabase-ahw2.2/446/console which stored the make log in http://logs.trafodion.org/daily/core-regress-seabase-ahw2.2/06ed942/Make.log .  The initial failure is:

    Failed to read artifact descriptor for org.mortbay.jetty:jetty-util:jar:6.1.26.hwx: Could not transfer artifact org.mortbay.jetty:jetty-util:pom:6.1.26.hwx from/to ghelmling.testing (http://people.apache.org/~garyh/mvn/): Connection to http://people.apache.org refused: Connection timed out ->

Something is making this download occur every time, because the file is not stored in the local maven repository.  Since the file is not local, it is downloaded every time and make is more susceptible to problems accessing apache.org.

A longer extract from the makelog is:

[INFO] ------------------------------------------------------------------------	##(SQF)
[INFO] Building HBase - Trx 1.1.0	##(SQF)
[INFO] ------------------------------------------------------------------------	##(SQF)
Downloading: http://repo.hortonworks.com/content/repositories/releases/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

Downloading: http://repo.maven.apache.org/maven2/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

Downloading: https://repository.apache.org/content/repositories/releases/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

Downloading: http://download.java.net/maven/2/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

Downloading: http://repository.codehaus.org/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)
. . .
Downloading: http://people.apache.org/~garyh/mvn/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

Downloading: https://repository.apache.org/content/repositories/snapshots/org/mortbay/jetty/jetty/6.1.26.hwx/jetty-6.1.26.hwx.pom	##(SQF)

[WARNING] The POM for org.mortbay.jetty:jetty:jar:6.1.26.hwx is missing, no dependency information available	##(SQF)
Downloading: http://repo.hortonworks.com/content/repositories/releases/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: http://repo.maven.apache.org/maven2/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: https://repository.apache.org/content/repositories/releases/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: http://download.java.net/maven/2/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: http://repository.codehaus.org/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: http://repository.jboss.org/nexus/content/groups/public-jboss/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: http://people.apache.org/~garyh/mvn/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

Downloading: https://repository.apache.org/content/repositories/snapshots/org/mortbay/jetty/jetty-util/6.1.26.hwx/jetty-util-6.1.26.hwx.pom	##(SQF)

[INFO] ------------------------------------------------------------------------	##(SQF)
[INFO] BUILD FAILURE	##(SQF)
[INFO] ------------------------------------------------------------------------	##(SQF)
[INFO] Total time: 1:20.399s	##(SQF)
[INFO] Finished at: Mon Apr 13 08:37:29 UTC 2015	##(SQF)
[INFO] Final Memory: 15M/211M	##(SQF)
[INFO] ------------------------------------------------------------------------	##(SQF)
[ERROR] Failed to execute goal on project hbase-trx-hdp2_2: Could not resolve dependencies for project org.apache:hbase-trx-hdp2_2:jar:1.1.0: Failed to collect dependencies for [org.apache.hbase:hbase-common:jar:0.98.4.2.2.0.0-2041-hadoop2 (compile), org.apache.hbase:hbase-protocol:jar:0.98.4.2.2.0.0-2041-hadoop2 (compile), org.apache.hbase:hbase-client:jar:0.98.4.2.2.0.0-2041-hadoop2 (compile), org.apache.hbase:hbase-server:jar:0.98.4.2.2.0.0-2041-hadoop2 (compile), org.apache.hbase:hbase-thrift:jar:0.98.4.2.2.0.0-2041-hadoop2 (compile), org.apache.hbase:hbase-testing-util:jar:0.98.4.2.2.0.0-2041-hadoop2 (test), org.apache.thrift:libthrift:jar:0.9.1 (compile), commons-logging:commons-logging:jar:1.1.3 (compile), org.apache.zookeeper:zookeeper:jar:3.4.5 (compile), com.google.protobuf:protobuf-java:jar:2.5.0 (compile), org.apache.hadoop:hadoop-mapreduce-client-core:jar:2.5.0 (compile), org.apache.hadoop:hadoop-common:jar:2.5.0 (compile)]: Failed to read artifact descriptor for org.mortbay.jetty:jetty-util:jar:6.1.26.hwx: Could not transfer artifact org.mortbay.jetty:jetty-util:pom:6.1.26.hwx from/to ghelmling.testing (http://people.apache.org/~garyh/mvn/): Connection to http://people.apache.org refused: Connection timed out -> [Help 1]	##(SQF)
[ERROR] 	##(SQF)
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.	##(SQF)
[ERROR] Re-run Maven using the -X switch to enable full debug logging.	##(SQF)
[ERROR] 	##(SQF)
[ERROR] For more information about the errors and possible solutions, please read the following articles:	##(SQF)
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException	##(SQF)
make[3]: *** [jdk_1_7_hdp] Error 1	##(SQF)
make[3]: Leaving directory `/home/jenkins/workspace/core-regress-seabase-ahw2.2/trafodion/core/sqf/src/seatrans/hbase-trx'	##(SQF)
make[2]: *** [cp_trx_jar] Error 2	##(SQF)
make[2]: Leaving directory `/home/jenkins/workspace/core-regress-seabase-ahw2.2/trafodion/core/sqf/src/tm'	##(SQF)
make[1]: *** [tm] Error 2
make[1]: *** Waiting for unfinished jobs...