Verify whether or not a client using the Cassandra 3 driver to talk to a Cassandra 2.2+ server has to be using jdk8

[risdenk]

From PR #614 #614 (comment)

[risdenk]

Based on outcome of this issue, update the README to indicate that folks wanting to test against Cassandra 2.2+ need to run JDK8 (our jdk7 compiled release artifacts should still work fine).

[risdenk]

I tested YCSB master cassandra2-cql with JDK 1.7 against Cassandra 2.2.5 using the cassandra:2 Docker hub image. (docker run -d --name cassandra --net host -p 9042:9042 cassandra:2)

$ mvn --version
Apache Maven 3.3.9 (bb52d8502b132ec0a5a3f4c09453c07478323dc5; 2015-11-10T10:41:47-06:00)
Maven home: /usr/local/Cellar/maven/3.3.9/libexec
Java version: 1.7.0_79, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.11.4", arch: "x86_64", family: "mac"

$ ./bin/ycsb load cassandra2-cql -P workloads/workloada -p hosts=192.168.1.237
[WARN]  Running against a source checkout. In order to get our runtime dependencies we'll have t
o invoke Maven. Depending on the state of your system, this may take ~30-45 seconds
[DEBUG]  Running 'mvn -pl com.yahoo.ycsb:cassandra2-binding -am package -DskipTests dependency:b
uild-classpath -DincludeScope=compile -Dmdep.outputFilterFile=true'
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -cp /Users/avalon/YCSB/
cassandra2/conf:/Users/avalon/YCSB/cassandra2/target/cassandra2-binding-0.9.0-SNAPSHOT.jar:/User
s/avalon/.m2/repository/io/netty/netty-codec/4.0.33.Final/netty-codec-4.0.33.Final.jar:/Users/av
alon/.m2/repository/io/netty/netty-handler/4.0.33.Final/netty-handler-4.0.33.Final.jar:/Users/av
alon/.m2/repository/io/netty/netty-transport/4.0.33.Final/netty-transport-4.0.33.Final.jar:/User
s/avalon/.m2/repository/io/netty/netty-buffer/4.0.33.Final/netty-buffer-4.0.33.Final.jar:/Users/
avalon/.m2/repository/com/datastax/cassandra/cassandra-driver-core/3.0.0/cassandra-driver-core-3
.0.0.jar:/Users/avalon/.m2/repository/io/dropwizard/metrics/metrics-core/3.1.2/metrics-core-3.1.
2.jar:/Users/avalon/.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.4/jackson-core-asl-
1.9.4.jar:/Users/avalon/.m2/repository/io/netty/netty-common/4.0.33.Final/netty-common-4.0.33.Fi
nal.jar:/Users/avalon/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.4/HdrHistogram-2.1.4.jar:
/Users/avalon/YCSB/core/target/core-0.9.0-SNAPSHOT.jar:/Users/avalon/.m2/repository/com/google/g
uava/guava/16.0.1/guava-16.0.1.jar:/Users/avalon/.m2/repository/org/codehaus/jackson/jackson-map
per-asl/1.9.4/jackson-mapper-asl-1.9.4.jar:/Users/avalon/.m2/repository/org/slf4j/slf4j-api/1.6.
4/slf4j-api-1.6.4.jar com.yahoo.ycsb.Client -db com.yahoo.ycsb.db.CassandraCQLClient -P workload
s/workloada -p hosts=192.168.1.237 -load
YCSB Client 0.9.0-SNAPSHOT
Command line: -db com.yahoo.ycsb.db.CassandraCQLClient -P workloads/workloada -p hosts=192.168.1
.237 -load
Loading workload...
Starting test.
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Connected to cluster: Test Cluster
Datacenter: datacenter1; Host: /192.168.1.237; Rack: rack1
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
[OVERALL], RunTime(ms), 9838.0
[OVERALL], Throughput(ops/sec), 101.64667615368977
[CLEANUP], Operations, 1.0
[CLEANUP], AverageLatency(us), 2259968.0
[CLEANUP], MinLatency(us), 2258944.0
[CLEANUP], MaxLatency(us), 2260991.0
[CLEANUP], 95thPercentileLatency(us), 2260991.0
[CLEANUP], 99thPercentileLatency(us), 2260991.0
[INSERT], Operations, 1000.0
[INSERT], AverageLatency(us), 5826.042
[INSERT], MinLatency(us), 1917.0
[INSERT], MaxLatency(us), 53823.0
[INSERT], 95thPercentileLatency(us), 12543.0
[INSERT], 99thPercentileLatency(us), 16559.0
[INSERT], Return=OK, 1000

$ ./bin/ycsb run cassandra2-cql -P workloads/workloada -p hosts=192.168.1.237
[WARN]  Running against a source checkout. In order to get our runtime dependencies we'll have to invoke Maven. Depending on the state of your system, this may take ~30-45 seconds
[DEBUG]  Running 'mvn -pl com.yahoo.ycsb:cassandra2-binding -am package -DskipTests dependency:build-classpath -DincludeScope=compile -Dmdep.outputFilterFile=true'
/Library/Java/JavaVirtualMachines/jdk1.7.0_79.jdk/Contents/Home/bin/java -cp /Users/avalon/YCSB/cassandra2/conf:/Users/avalon/YCSB/cassandra2/target/cassandra2-binding-0.9.0-SNAPSHOT.jar:/Users/avalon/.m2/repository/io/netty/netty-codec/4.0.33.Final/netty-codec-4.0.33.Final.jar:/Users/avalon/.m2/repository/io/netty/netty-handler/4.0.33.Final/netty-handler-4.0.33.Final.jar:/Users/avalon/.m2/repository/io/netty/netty-transport/4.0.33.Final/netty-transport-4.0.33.Final.jar:/Users/avalon/.m2/repository/io/netty/netty-buffer/4.0.33.Final/netty-buffer-4.0.33.Final.jar:/Users/avalon/.m2/repository/com/datastax/cassandra/cassandra-driver-core/3.0.0/cassandra-driver-core-3.0.0.jar:/Users/avalon/.m2/repository/io/dropwizard/metrics/metrics-core/3.1.2/metrics-core-3.1.2.jar:/Users/avalon/.m2/repository/org/codehaus/jackson/jackson-core-asl/1.9.4/jackson-core-asl-1.9.4.jar:/Users/avalon/.m2/repository/io/netty/netty-common/4.0.33.Final/netty-common-4.0.33.Final.jar:/Users/avalon/.m2/repository/org/hdrhistogram/HdrHistogram/2.1.4/HdrHistogram-2.1.4.jar:/Users/avalon/YCSB/core/target/core-0.9.0-SNAPSHOT.jar:/Users/avalon/.m2/repository/com/google/guava/guava/16.0.1/guava-16.0.1.jar:/Users/avalon/.m2/repository/org/codehaus/jackson/jackson-mapper-asl/1.9.4/jackson-mapper-asl-1.9.4.jar:/Users/avalon/.m2/repository/org/slf4j/slf4j-api/1.6.4/slf4j-api-1.6.4.jar com.yahoo.ycsb.Client -db com.yahoo.ycsb.db.CassandraCQLClient -P workloads/workloada -p hosts=192.168.1.237 -t
YCSB Client 0.9.0-SNAPSHOT
Command line: -db com.yahoo.ycsb.db.CassandraCQLClient -P workloads/workloada -p hosts=192.168.1.237 -t
Loading workload...
Starting test.
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Connected to cluster: Test Cluster
Datacenter: datacenter1; Host: /192.168.1.237; Rack: rack1
DBWrapper: report latency for each error is false and specific error codes to track for latency are: []
[OVERALL], RunTime(ms), 8486.0
[OVERALL], Throughput(ops/sec), 117.84115012962526
[CLEANUP], Operations, 1.0
[CLEANUP], AverageLatency(us), 2262016.0
[CLEANUP], MinLatency(us), 2260992.0
[CLEANUP], MaxLatency(us), 2263039.0
[CLEANUP], 95thPercentileLatency(us), 2263039.0
[CLEANUP], 99thPercentileLatency(us), 2263039.0
[READ], Operations, 518.0
[READ], AverageLatency(us), 5564.057915057915
[READ], MinLatency(us), 2284.0
[READ], MaxLatency(us), 19951.0
[READ], 95thPercentileLatency(us), 12791.0
[READ], 99thPercentileLatency(us), 15631.0
[READ], Return=OK, 518
[UPDATE], Operations, 482.0
[UPDATE], AverageLatency(us), 4986.485477178423
[UPDATE], MinLatency(us), 1636.0
[UPDATE], MaxLatency(us), 29647.0
[UPDATE], 95thPercentileLatency(us), 12463.0
[UPDATE], 99thPercentileLatency(us), 17887.0
[UPDATE], Return=OK, 482

[risdenk]

Based on the testing above, JDK 7 with the Cassandra 3 driver works with Cassandra 2.2+

[busbey]

Excellent. Thanks for chasing this down!