bigdata-developers Mailing List for Blazegraph (powered by bigdata) (Page 11)

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Great!

Thanks,
Bryan

----
Bryan Thompson
Chief Scientist & Founder
Blazegraph
e: br...@bl...
w: http://blazegraph.com

Blazegraph products help to solve the Graph Cache Thrash to achieve large
scale processing for graph and predictive analytics.  Blazegraph is the
creator of the industry’s first GPU-accelerated high-performance database
for large graphs, has been named as one of the “10 Companies and
Technologies to Watch in 2016” <http://insideanalysis.com/2016/01/20535/>.

Blazegraph Database <https://www.blazegraph.com/> is our ultra-high
performance graph database that supports both RDF/SPARQL and
Tinkerpop/Blueprints APIs.   Blazegraph GPU
<https://www.blazegraph.com/product/gpu-accelerated/> andBlazegraph DAS
<https://www.blazegraph.com/product/gpu-accelerated/>L are disruptive new
technologies that use GPUs to enable extreme scaling that is thousands of
times faster and 40 times more affordable than CPU-based solutions.

CONFIDENTIALITY NOTICE:  This email and its contents and attachments are
for the sole use of the intended recipient(s) and are confidential or
proprietary to SYSTAP, LLC DBA Blazegraph.  Any unauthorized review, use,
disclosure, dissemination or copying of this email or its contents or
attachments is prohibited. If you have received this communication in
error, please notify the sender by reply email and permanently delete all
copies of the email and its contents and attachments.

On Tue, Feb 16, 2016 at 4:42 PM, Edgar Rodriguez-Diaz <ed...@sy...>
wrote:

>
>
> On Tue, Feb 16, 2016 at 12:04 PM, Bryan Thompson <br...@sy...> wrote:
>
>> So it is looking for this class: com.bigdata.rdf.vocab.core.
>> BigdataCoreVocabulary_v20151210
>>
>> This class is in the 2.0 release.
>>
>> It should not have updated the definition of the vocabulary. That is a
>> durable thing which is established when you first create a namespace. It is
>> not modified after that.  In fact, modifying this property would cause
>> havoc for the namespace.
>>
>> Do you perhaps not have the default namespace (kb) in the journal before
>> you start 2.0?  It is possible that it is automatically creating that
>> default namespace if none is found and then your 1.5.3 version is unable to
>> resolve the newer vocabulary class.
>>
>
> This is the case; I didn't have the kb namespace, since 1.5.3 does not
> create it by default, but 2.0.0 does. Creating the kb namespace in 1.5.3
> seems to have done the trick and prevented 2.0.0 from writing into the
> journal to create it.
>
>
>>
>> There is a web.xml property you can specify to have it NOT automatically
>> create the default namespace.
>>
>> Thanks,
>> Bryan
>>
>>
>> ----
>> Bryan Thompson
>> Chief Scientist & Founder
>> Blazegraph
>> e: br...@bl...
>> w: http://blazegraph.com
>>
>> Blazegraph products help to solve the Graph Cache Thrash to achieve large
>> scale processing for graph and predictive analytics.  Blazegraph is the
>> creator of the industry’s first GPU-accelerated high-performance database
>> for large graphs, has been named as one of the “10 Companies and
>> Technologies to Watch in 2016” <http://insideanalysis.com/2016/01/20535/>.
>>
>>
>> Blazegraph Database <https://www.blazegraph.com/> is our ultra-high
>> performance graph database that supports both RDF/SPARQL and
>> Tinkerpop/Blueprints APIs.   Blazegraph GPU
>> <https://www.blazegraph.com/product/gpu-accelerated/> andBlazegraph DAS
>> <https://www.blazegraph.com/product/gpu-accelerated/>L are disruptive
>> new technologies that use GPUs to enable extreme scaling that is thousands
>> of times faster and 40 times more affordable than CPU-based solutions.
>>
>> CONFIDENTIALITY NOTICE:  This email and its contents and attachments are
>> for the sole use of the intended recipient(s) and are confidential or
>> proprietary to SYSTAP, LLC DBA Blazegraph.  Any unauthorized review, use,
>> disclosure, dissemination or copying of this email or its contents or
>> attachments is prohibited. If you have received this communication in
>> error, please notify the sender by reply email and permanently delete all
>> copies of the email and its contents and attachments.
>>
>> On Tue, Feb 16, 2016 at 3:00 PM, Edgar Rodriguez-Diaz <ed...@sy...>
>> wrote:
>>
>>> This seems relevant from the log from my blazegraph 1.5.3 using the
>>> Journal previously queried in 2.0.0:
>>>
>>> ```
>>> Feb 16,2016 11:09:30 PST - ERROR: 7822      qtp1935637221-32
>>> com.bigdata.rdf.sail.webapp.BigdataRDFServlet.launderThrowable(BigdataRDFServlet.java:214):
>>> cause=java.lang.RuntimeException: off=0, len=339,
>>> query=describeEachNamedGraph=false, describeDefaultNamespace=false
>>> java.lang.RuntimeException: off=0, len=339
>>> at com.bigdata.io.SerializerUtil.deserialize(SerializerUtil.java:239)
>>> at com.bigdata.io.SerializerUtil.deserialize(SerializerUtil.java:207)
>>> at com.bigdata.sparse.ValueType.decode(ValueType.java:333)
>>> at
>>> com.bigdata.sparse.AtomicRowFilter$Transformerator.handleTuple(AtomicRowFilter.java:408)
>>> at
>>> com.bigdata.sparse.AtomicRowFilter$Transformerator.hasNext(AtomicRowFilter.java:290)
>>> at
>>> com.bigdata.btree.filter.WrappedTupleIterator.hasNext(WrappedTupleIterator.java:30)
>>> at
>>> cutthecrap.utils.striterators.Resolverator.hasNext(Resolverator.java:39)
>>> at cutthecrap.utils.striterators.Striterator.hasNext(Striterator.java:89)
>>> at
>>> com.bigdata.rdf.sail.webapp.BigdataRDFContext.getNamespacesTx(BigdataRDFContext.java:2748)
>>> at
>>> com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doDescribeNamespaces(MultiTenancyServlet.java:506)
>>> at
>>> com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doGet(MultiTenancyServlet.java:199)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
>>> at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
>>> at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:769)
>>> at
>>> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:585)
>>> at
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
>>> at
>>> org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:577)
>>> at
>>> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:223)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1125)
>>> at
>>> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:515)
>>> at
>>> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1059)
>>> at
>>> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
>>> at
>>> org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:215)
>>> at
>>> org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:110)
>>> at
>>> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:97)
>>> at org.eclipse.jetty.server.Server.handle(Server.java:497)
>>> at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:311)
>>> at
>>> org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:248)
>>> at
>>> org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540)
>>> at
>>> org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:610)
>>> at
>>> org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:539)
>>> at java.lang.Thread.run(Thread.java:745)
>>> Caused by: java.lang.ClassNotFoundException:
>>> com.bigdata.rdf.vocab.core.BigdataCoreVocabulary_v20151210
>>> at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>>> at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
>>> at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>>> at java.lang.Class.forName0(Native Method)
>>> at java.lang.Class.forName(Class.java:348)
>>> at java.io.ObjectInputStream.resolveClass(ObjectInputStream.java:626)
>>> at
>>> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1613)
>>> at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1518)
>>> at
>>> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1774)
>>> at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1351)
>>> at java.io.ObjectInputStream.readObject(ObjectInputStream.java:371)
>>> at com.bigdata.io.SerializerUtil.deserialize(SerializerUtil.java:231)
>>> ... 32 more
>>> ```
>>>
>>> Seems like still something is trying to use the vocabulary previously
>>> mentioned.
>>>
>>> Cheers,
>>> Edgar
>>>
>>> On Tue, Feb 16, 2016 at 11:41 AM, Bryan Thompson <br...@sy...>
>>> wrote:
>>>
>>>> Does anything show up in the logs?  The set of namespaces is stored in
>>>> the __globalRowStore.  Just querying the system should not cause anything
>>>> to be written.  This would be visible if you use DumpJournal (w/o -pages)
>>>> and look at the commit counter.  It should be unchanged.  Queries are read
>>>> only.
>>>>
>>>> Thanks,
>>>> Bryan
>>>>
>>>> ----
>>>> Bryan Thompson
>>>> Chief Scientist & Founder
>>>> Blazegraph
>>>> e: br...@bl...
>>>> w: http://blazegraph.com
>>>>
>>>> Blazegraph products help to solve the Graph Cache Thrash to achieve
>>>> large scale processing for graph and predictive analytics.  Blazegraph is
>>>> the creator of the industry’s first GPU-accelerated high-performance
>>>> database for large graphs, has been named as one of the “10 Companies
>>>> and Technologies to Watch in 2016”
>>>> <http://insideanalysis.com/2016/01/20535/>.
>>>>
>>>> Blazegraph Database <https://www.blazegraph.com/> is our ultra-high
>>>> performance graph database that supports both RDF/SPARQL and
>>>> Tinkerpop/Blueprints APIs.   Blazegraph GPU
>>>> <https://www.blazegraph.com/product/gpu-accelerated/> andBlazegraph DAS
>>>> <https://www.blazegraph.com/product/gpu-accelerated/>L are disruptive
>>>> new technologies that use GPUs to enable extreme scaling that is thousands
>>>> of times faster and 40 times more affordable than CPU-based solutions.
>>>>
>>>> CONFIDENTIALITY NOTICE:  This email and its contents and attachments
>>>> are for the sole use of the intended recipient(s) and are confidential or
>>>> proprietary to SYSTAP, LLC DBA Blazegraph.  Any unauthorized review, use,
>>>> disclosure, dissemination or copying of this email or its contents or
>>>> attachments is prohibited. If you have received this communication in
>>>> error, please notify the sender by reply email and permanently delete all
>>>> copies of the email and its contents and attachments.
>>>>
>>>> On Tue, Feb 16, 2016 at 2:31 PM, Edgar Rodriguez-Diaz <
>>>> ed...@sy...> wrote:
>>>>
>>>>> It would seem that just opening the 1.5.3 journal file in 2.0.0 makes
>>>>> it unusable in 1.5.3. This is what I’m doing:
>>>>>
>>>>> 1. Start with an empty Journal from 1.5.3, in my blazegraph.properties
>>>>> it’s defined:
>>>>>
>>>>>
>>>>> com.bigdata.journal.AbstractJournal.file=/usr/local/var/blazegraph/blazegraph.jnl
>>>>>
>>>>> 2. Go to the workbench/namespaces and create a new NS, say `nstest`,
>>>>> and select it
>>>>> 2.1. Add some data ~1M triples.
>>>>> 2.2. Execute a query to list just 100 triples
>>>>>
>>>>> 3. Stop blazegraph 1.5.3
>>>>> 4. Go to my properties file in blazegraph 2.0.0 (from the Github repo,
>>>>> a copy of `bigdata-war-html/src/main/webapp/WEB-INF/RWStore.properties`),
>>>>> set the Journal file to:
>>>>>
>>>>>
>>>>> com.bigdata.journal.AbstractJournal.file=/usr/local/var/blazegraph/blazegraph.jnl
>>>>>
>>>>> 5. Start blazegraph 2.0.0, correctly pointing to my properties file in
>>>>> `scripts/startBlazegraph.sh`
>>>>> 6. Go to the workbench/namespaces.
>>>>> 6.2. Select my namespaces created in 1.5.3 (`nstest`), which is listed
>>>>> 6.1. Execute a query to list just 100 triples
>>>>>
>>>>> 7. Stop blazegraph 2.0.0
>>>>> 8. Start blazegraph 1.5.3
>>>>> 9. Go to namespaces; no namespaces are listed.
>>>>>
>>>>> I’m not modifying the 1.5.3 journal with 2.0.0 (or at least I don’t
>>>>> think I’m modifying it), just opening it in 2.0.0 and executing a query,
>>>>> which seems to be enough to make it not visible anymore back in 1.5.3.
>>>>>
>>>>> I’m I missing something?
>>>>>
>>>>> Thanks.
>>>>>
>>>>> Cheers,
>>>>> Edgar
>>>>>
>>>>> On Tue, Feb 16, 2016 at 10:20 AM, Bryan Thompson <br...@sy...>
>>>>> wrote:
>>>>>
>>>>>> Yes.  It is actually if you create a namespace with a newer
>>>>>> vocabulary, then you can not open it with a classpath that does not include
>>>>>> that vocabulary.  Since 2.0 uses a new vocabulary declaration by default,
>>>>>> create your namespace in 1.5.3 if you want to use it in both 2.0 and 1.5.3.
>>>>>>
>>>>>> Thanks,
>>>>>> Bryan
>>>>>>
>>>>>> ----
>>>>>> Bryan Thompson
>>>>>> Chief Scientist & Founder
>>>>>> Blazegraph
>>>>>> e: br...@bl...
>>>>>> w: http://blazegraph.com
>>>>>>
>>>>>> Blazegraph products help to solve the Graph Cache Thrash to achieve
>>>>>> large scale processing for graph and predictive analytics.  Blazegraph is
>>>>>> the creator of the industry’s first GPU-accelerated high-performance
>>>>>> database for large graphs, has been named as one of the “10
>>>>>> Companies and Technologies to Watch in 2016”
>>>>>> <http://insideanalysis.com/2016/01/20535/>.
>>>>>>
>>>>>> Blazegraph Database <https://www.blazegraph.com/> is our ultra-high
>>>>>> performance graph database that supports both RDF/SPARQL and
>>>>>> Tinkerpop/Blueprints APIs.   Blazegraph GPU
>>>>>> <https://www.blazegraph.com/product/gpu-accelerated/> and
>>>>>> Blazegraph DAS <https://www.blazegraph.com/product/gpu-accelerated/>L
>>>>>> are disruptive new technologies that use GPUs to enable extreme scaling
>>>>>> that is thousands of times faster and 40 times more affordable than
>>>>>> CPU-based solutions.
>>>>>>
>>>>>> CONFIDENTIALITY NOTICE:  This email and its contents and attachments
>>>>>> are for the sole use of the intended recipient(s) and are confidential or
>>>>>> proprietary to SYSTAP, LLC DBA Blazegraph.  Any unauthorized review, use,
>>>>>> disclosure, dissemination or copying of this email or its contents or
>>>>>> attachments is prohibited. If you have received this communication in
>>>>>> error, please notify the sender by reply email and permanently delete all
>>>>>> copies of the email and its contents and attachments.
>>>>>>
>>>>>> On Tue, Feb 16, 2016 at 1:18 PM, Brad Bebee <be...@bl...>
>>>>>> wrote:
>>>>>>
>>>>>>> Edgar,
>>>>>>>
>>>>>>> 2.0.0 introduced a new versioned vocabulary class that is the
>>>>>>> default for newly created namespaces.   The vocabulary class must be in the
>>>>>>> classpath.
>>>>>>>
>>>>>>> As such, if you create a journal with 1.5.3, you can open it in
>>>>>>> 2.0.0.  If You create a journal in 2.0.0, you would need to add the new
>>>>>>> vocabulary class in the classpath to open it in 1.5.3.
>>>>>>>
>>>>>>> Thanks, Brad
>>>>>>>
>>>>>>> _______________
>>>>>>> Brad Bebee
>>>>>>> CEO, Managing Partner
>>>>>>> SYSTAP, LLC
>>>>>>> e:  be...@sy...
>>>>>>> m: 202.642.7961
>>>>>>> f:  571.367.5000
>>>>>>> w:  www.systap.com
>>>>>>>
>>>>>>> Blazegraph™ is our ultra high-performance graph database that
>>>>>>> supports both RDF/SPARQL and Tinkerpop/Blueprints APIs.  MapGraph™ is our
>>>>>>> disruptive new technology to use GPUs to accelerate data-parallel graph
>>>>>>> analytics.
>>>>>>>
>>>>>>> CONFIDENTIALITY NOTICE:  This email and its contents and attachments
>>>>>>> are for the sole use of the intended recipient(s) and are confidential or
>>>>>>> proprietary to SYSTAP, LLC.  Any unauthorized review, use, disclosure,
>>>>>>> dissemination or copying of this email or its contents or attachments is
>>>>>>> prohibited. If you have received this communication in error, please notify
>>>>>>> the sender by reply email and permanently delete all copies of the email
>>>>>>> and its contents and attachments.
>>>>>>> On Feb 15, 2016 5:41 PM, "Bryan Thompson" <br...@sy...> wrote:
>>>>>>>
>>>>>>>> It should be compatible.  Can you provide mode details.
>>>>>>>>
>>>>>>>> Bryan
>>>>>>>>
>>>>>>>> ----
>>>>>>>> Bryan Thompson
>>>>>>>> Chief Scientist & Founder
>>>>>>>> Blazegraph
>>>>>>>> e: br...@bl...
>>>>>>>> w: http://blazegraph.com
>>>>>>>>
>>>>>>>> Blazegraph products help to solve the Graph Cache Thrash to achieve
>>>>>>>> large scale processing for graph and predictive analytics.  Blazegraph is
>>>>>>>> the creator of the industry’s first GPU-accelerated high-performance
>>>>>>>> database for large graphs, has been named as one of the “10
>>>>>>>> Companies and Technologies to Watch in 2016”
>>>>>>>> <http://insideanalysis.com/2016/01/20535/>.
>>>>>>>>
>>>>>>>> Blazegraph Database <https://www.blazegraph.com/> is our
>>>>>>>> ultra-high performance graph database that supports both
>>>>>>>> RDF/SPARQL and Tinkerpop/Blueprints APIs.   Blazegraph GPU
>>>>>>>> <https://www.blazegraph.com/product/gpu-accelerated/> and
>>>>>>>> Blazegraph DAS
>>>>>>>> <https://www.blazegraph.com/product/gpu-accelerated/>L are
>>>>>>>> disruptive new technologies that use GPUs to enable extreme scaling that is
>>>>>>>> thousands of times faster and 40 times more affordable than CPU-based
>>>>>>>> solutions.
>>>>>>>>
>>>>>>>> CONFIDENTIALITY NOTICE:  This email and its contents and
>>>>>>>> attachments are for the sole use of the intended recipient(s) and are
>>>>>>>> confidential or proprietary to SYSTAP, LLC DBA Blazegraph.  Any
>>>>>>>> unauthorized review, use, disclosure, dissemination or copying of this
>>>>>>>> email or its contents or attachments is prohibited. If you have received
>>>>>>>> this communication in error, please notify the sender by reply email and
>>>>>>>> permanently delete all copies of the email and its contents and
>>>>>>>> attachments.
>>>>>>>>
>>>>>>>> On Mon, Feb 15, 2016 at 5:14 PM, Edgar Rodriguez-Diaz <
>>>>>>>> ed...@sy...> wrote:
>>>>>>>>
>>>>>>>>> I was wondering what’s the level of compatibility for the Journal
>>>>>>>>> file between 1.5.3 and 2.0.0. I did a small check and it seems like once a
>>>>>>>>> journal is opened with 2.0.0 it’s no longer compatible with 1.5.3.
>>>>>>>>> Is this correct? Thanks.
>>>>>>>>>
>>>>>>>>> Cheers,
>>>>>>>>> - Edgar
>>>>>>>>>
>>>>>>>>> ------------------------------------------------------------------------------
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>>>>>>>>> Bigdata-developers mailing list
>>>>>>>>> Big...@li...
>>>>>>>>> https://lists.sourceforge.net/lists/listinfo/bigdata-developers
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ------------------------------------------------------------------------------
>>>>>>>> Site24x7 APM Insight: Get Deep Visibility into Application
>>>>>>>> Performance
>>>>>>>> APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month
>>>>>>>> Monitor end-to-end web transactions and take corrective actions now
>>>>>>>> Troubleshoot faster and improve end-user experience. Signup Now!
>>>>>>>> http://pubads.g.doubleclick.net/gampad/clk?id=272487151&iu=/4140
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>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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