How YCSB with Oracle?

Hi all

I followed the instructions available here: Installation Configuration to install Oracle NoSQL and can even run the HelloBigDataWorld smoke test.

However, when I try to run the YCSB, they would give me an exception "could not contact any RepNode to: [server0:5000]".

Some background information:

I have access to 4 servers, and I'm supposed to configure Oracle NoSQL on 3 of them (server0 ~ 2), then run YCSB on the last one (3 Server).

Here is my result to "see the topology:

kV-> see the topology

Ranger = mystore numPartitions = 30 sequence = 40

DC = [dc1] name = name repFactor = 1

SN = [sn1] dc = dc1 server0:5000 capacity = 1 FOOT race

[rg1 - rn1] RUNNING

No info available performance

SN = [sn2] dc = dc1 server1:5000 capacity = 1 FOOT race

[rg2 - rn1] RUNNING

No info available performance

SN = [sn3] dc = dc1 server2:5000 capacity = 1 FOOT race

[rg3 - rn1] RUNNING

Avg latency = 1,9051613 ms avg latency multi-op single-op = 0.0 ms

Shard = [rg1] partitions num = 10

[rg1 - rn1] sn = sn1

Shard = [rg2] partitions num = 10

[rg2 - rn1] sn = sn2

Shard = [rg3] partitions num = 10

[rg3 - rn1] sn = sn3

and here's my YCSB config file:

# Name of the store

storeName = mystore

# List separated by commas of the host/port to support pairs

helperHost = server0:5000

I have no problem to run the server3 HelloBigDataWorld test:

Hello $KVHOME/lib/kvclient.jar:$KVHOME/examples me@Server3:~$ java - cp. HelloBigDataWorld-host server0-port 5000 - shop mystore

Hello world data!

But with the YCSB:

me@Server3:~$ $YCSB/bin/ycsb charge Pei Pei loads/workloada nosqldb.properties nosqldb

Commencement of the trial.

com.yahoo.ycsb.DBException: oracle.kv.FaultException: 11gR2.1.2.123 NoSQL DB, Oracle could not contact any RepNode to: [server0:5000]

No idea why? I tried the latest version of Oracle NoSQL and the oldest version that I could find, and both gave me the same problem...

Moreover, to make this point, should I configure 3 data centers with 1 storage node each, or 1 data center with 3 storage nodes (I have no need of a replication node - it's only for benchmarking).

Thank you!

[T] hen I try to run the YCSB, they would give me an exception "could not contact any RepNode to: [server0:5000]»

[...]

me@Server3:~$ $YCSB/bin/ycsb charge Pei Pei loads/workloada nosqldb.properties nosqldb

Commencement of the trial.

com.yahoo.ycsb.DBException: oracle.kv.FaultException: 11gR2.1.2.123 NoSQL DB, Oracle could not contact any RepNode to: [server0:5000]

No idea why? I tried the latest version of Oracle NoSQL and the oldest version that I could find, and both gave me the same problem...

I was able to reproduce this problem, and the issue is an incompatibility in the client introduced between versions 1 and 2.  The predefined Oracle NoSQL provided with YCSB 0.1.4 database driver is for the version 1.2.123, but the first version of Oracle database currently available NoSQL is 2.0.39 and server of this version is incompatible with the version 1.2.123 client used by the YCSB driver.

I was able to get things by updating them my YCSB 0.1.4 source to designate the 3.0.5 client referenced here:

NoSQL Oracle on Maven https://community.oracle.com/thread/3575499 >

I had to change the top-level pom to comment on a bunch of other modules (to avoid other problems) and activate the nosqldb one.

I changed the nosqldb/pom.xml to have:

com Oracle.kV

kvclient_3.0.5

3.0.5

And:

Central

http://repo1.Maven.org/Maven2

I did a 'mvn package ".  When I used this rebuilt version, the YCSB run succeeded.

Moreover, to make this point, should I configure 3 data centers with 1 storage node each, or 1 data center with 3 storage nodes (I have no need of a replication node - it's only for benchmarking).

Separate data centers using only affects the way that replication nodes are distributed to survive data center failures, which shouldn't matter to a performance index.  However, the replication factor - the number of nodes of replication by shine - will impact performance.  The master node handles all update requests, but replicas can handle queries from reading, which takes the load off of the master and should greatly increase performance.

-Tim

Tags: Database

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    at org.glassfish.grizzly.http.server.HttpHandler.doHandle(HttpHandler.java:168)

    at org.glassfish.grizzly.http.server.HttpServerFilter.handleRead(HttpServerFilter.java:189)

    to org.glassfish.grizzly.filterchain.ExecutorResolver$ 9.execute(ExecutorResolver.java:119)

    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeFilter(DefaultFilterChain.java:288)

    at org.glassfish.grizzly.filterchain.DefaultFilterChain.executeChainPart(DefaultFilterChain.java:206)

    at org.glassfish.grizzly.filterchain.DefaultFilterChain.execute(DefaultFilterChain.java:136)

    at org.glassfish.grizzly.filterchain.DefaultFilterChain.process(DefaultFilterChain.java:114)

    at org.glassfish.grizzly.ProcessorExecutor.execute(ProcessorExecutor.java:77)

    at org.glassfish.grizzly.nio.transport.TCPNIOTransport.fireIOEvent(TCPNIOTransport.java:838)

    at org.glassfish.grizzly.strategies.AbstractIOStrategy.fireIOEvent(AbstractIOStrategy.java:113)

    at org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.run0(WorkerThreadIOStrategy.java:115)

    in org.glassfish.grizzly.strategies.WorkerThreadIOStrategy.access$ 100 (WorkerThreadIOStrategy.java:55)

    to org.glassfish.grizzly.strategies.WorkerThreadIOStrategy$ WorkerThreadRunnable.run (WorkerThreadIOStrategy.java:135)

    to org.glassfish.grizzly.threadpool.AbstractThreadPool$ Worker.doWork (AbstractThreadPool.java:564)

    to org.glassfish.grizzly.threadpool.AbstractThreadPool$ Worker.run (AbstractThreadPool.java:544)

    at java.lang.Thread.run(Thread.java:724)

    Caused by: java.lang.RuntimeException: java.text.ParseException: date of: ' 2013-11 - 29 T 04: 55:05, 672-0000.

    at oracle.dbtools.common.util.Timestamps.valueOf(Timestamps.java:87)

    to oracle.dbtools.common.config.db.UrlMappings$ Builder$ 1PoolFilter.startElement(UrlMappings.java:233)

    at oracle.dbtools.common.x3p.MatchFilter.startElement (MatchFilter.java:54)

    at oracle.dbtools.common.x3p.impl.Event.invoke(Event.java:52)

    to oracle.dbtools.common.x3p.impl.Chain$ EventIterator.advance (Chain.java:125)

    to oracle.dbtools.common.x3p.impl.Chain$ EventIterator.advance (Chain.java:79)

    at oracle.dbtools.common.util.AbstractIterator._advance(AbstractIterator.java:89)

    at oracle.dbtools.common.util.AbstractIterator.next(AbstractIterator.java:47)

    at oracle.dbtools.common.x3p.impl.X3PReaderAdaptor.next(X3PReaderAdaptor.java:34)

    to oracle.dbtools.common.config.db.UrlMappings$ Builder.read (UrlMappings.java:203)

    at oracle.dbtools.common.config.db.UrlMappings.existing(UrlMappings.java:127)

    at oracle.dbtools.common.config.db.UrlMappings.urlMappings(UrlMappings.java:155)

    to oracle.dbtools.common.config.db.DatabasePoolConfig. (DatabasePoolConfig.java:327)

    ... 31 more

    Caused by: java.text.ParseException: date of: ' 2013-11 - 29 T 04: 55:05, 672-0000.

    at java.text.DateFormat.parse(DateFormat.java:357)

    at oracle.dbtools.common.util.Timestamps.valueOf(Timestamps.java:85)

    ... more than 43

    ]]

    I find this kerchief date timestamp is in the [C:\Documents and Settings\fernandosantucci\Local Settings\Temp\apex\url-mapping.xml] configuration file with following content:

    http://xmlns.Oracle.com/Apex/pool-config">

      = Update "" 2013-11 - 29 T 04: 55:05, 672Z '/ > "

    I can't believe it! A simple date plant a web application J2EE server?

    What happen that I can't see?

    Thanks in advance for any help.

    Kind regards

    Fernando Santucci

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