Resource Stresser Exceptions

[timveil]

Not clear if this is expected behavior but test runs to completion... Check with @apavlo

[WARN] 2020-05-14 21:51:17,060 [ResourceStresserWorker<001>]  com.oltpbenchmark.benchmarks.resourcestresser.procedures.Contention1 run - LOCK1UPDATE: supposedtochange=10 but only changed 9
[WARN] 2020-05-14 21:51:19,089 [ResourceStresserWorker<000>]  com.oltpbenchmark.api.Worker doWork - PSQLException thrown when executing 'com.oltpbenchmark.benchmarks.resourcestresser.procedures.Contention2/06' on 'ResourceStresserWorker<000>' [Message='ERROR: restart transaction: TransactionRetryWithProtoRefreshError: TransactionAbortedError(ABORT_REASON_PUSHER_ABORTED): "sql txn" meta={id=3b4ab4ed key=/Table/128/1/6 pri=0.03140247 epo=0 ts=1589507479.058541782,0 min=1589507477.054001937,0 seq=10} lock=true stat=ABORTED rts=1589507477.054001937,0 wto=false max=1589507477.054001937,0', ErrorCode='0', SQLState='40001']
org.postgresql.util.PSQLException: ERROR: restart transaction: TransactionRetryWithProtoRefreshError: TransactionAbortedError(ABORT_REASON_PUSHER_ABORTED): "sql txn" meta={id=3b4ab4ed key=/Table/128/1/6 pri=0.03140247 epo=0 ts=1589507479.058541782,0 min=1589507477.054001937,0 seq=10} lock=true stat=ABORTED rts=1589507477.054001937,0 wto=false max=1589507477.054001937,0
	at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2533)
	at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:2268)
	at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:313)
	at org.postgresql.jdbc.PgStatement.executeInternal(PgStatement.java:448)
	at org.postgresql.jdbc.PgStatement.execute(PgStatement.java:369)
	at org.postgresql.jdbc.PgPreparedStatement.executeWithFlags(PgPreparedStatement.java:159)
	at org.postgresql.jdbc.PgPreparedStatement.executeUpdate(PgPreparedStatement.java:125)
	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeUpdate(ProxyPreparedStatement.java:61)
	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeUpdate(HikariProxyPreparedStatement.java)
	at com.oltpbenchmark.benchmarks.resourcestresser.procedures.Contention2.run(Contention2.java:54)
	at com.oltpbenchmark.benchmarks.resourcestresser.ResourceStresserWorker.contention2Transaction(ResourceStresserWorker.java:93)
	at com.oltpbenchmark.benchmarks.resourcestresser.ResourceStresserWorker.executeWork(ResourceStresserWorker.java:79)
	at com.oltpbenchmark.api.Worker.doWork(Worker.java:374)
	at com.oltpbenchmark.api.Worker.run(Worker.java:273)
	at java.lang.Thread.run(Thread.java:748)