thompsonbry
commented
7 years ago Checksum errors indicate bad data. All writes have checksums. It is trying to read the current checkpoiint record.
You might be able to open the store with the alternate rootblock. See com.bigdata.journal.Options for how to do this.
However, this very likely indicates a physical problem with the disk leading to a bad read back of the written data. This has been the root cause in previous reports of a checksum error. And that is precisely what the checksum is designed to detect.
Thanks, Bryan
On Feb 17, 2017 9:09 PM, "Darren L. Weber, Ph.D." notifications@github.com wrote:
Followed the instructions in the blazegraph-deb section to build and install 2.1.4 and it worked at first. But after trying to load a lot of data the system froze. On restart, blazegraph will not restart using sudo service blazegraph restart (although a following status indicates it is running OK). The log shows the failure to start is a com.bigdata.util.ChecksumError -- is this a bug or a feature?
INFO: com.bigdata.util.config.LogUtil: Configure and watch: /etc/blazegraph/log4j.properties
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sul-dlweber-ubuntu Fri Feb 17 20:59:16 PST 2017 Linux/4.4.0-62-generic amd64 Intel(R) Core(TM) i7-3720QM CPU @ 2.60GHz Family 6 Model 58 Stepping 9, GenuineIntel #CPU=2 Oracle Corporation 1.7.0_80 freeMemory=123735856 buildVersion=2.1.4 gitCommit=738d05f08cffd319233a4bfbb0ec2a858e260f9c
Dependency License ICU http://source.icu-project.org/repos/icu/icu/trunk/license.html bigdata-ganglia http://www.apache.org/licenses/LICENSE-2.0.html blueprints-core https://github.com/tinkerpop/blueprints/blob/master/LICENSE.txt colt http://acs.lbl.gov/software/colt/license.html commons-codec http://www.apache.org/licenses/LICENSE-2.0.html commons-fileupload http://www.apache.org/licenses/LICENSE-2.0.html commons-io http://www.apache.org/licenses/LICENSE-2.0.html commons-logging http://www.apache.org/licenses/LICENSE-2.0.html dsiutils http://www.gnu.org/licenses/lgpl-2.1.html fastutil http://www.apache.org/licenses/LICENSE-2.0.html flot http://www.opensource.org/licenses/mit-license.php high-scale-lib http://creativecommons.org/licenses/publicdomain httpclient http://www.apache.org/licenses/LICENSE-2.0.html httpclient-cache http://www.apache.org/licenses/LICENSE-2.0.html httpcore http://www.apache.org/licenses/LICENSE-2.0.html httpmime http://www.apache.org/licenses/LICENSE-2.0.html jackson-core http://www.apache.org/licenses/LICENSE-2.0.html jetty http://www.apache.org/licenses/LICENSE-2.0.html jquery https://github.com/jquery/jquery/blob/master/MIT-LICENSE.txt jsonld https://raw.githubusercontent.com/jsonld-java/jsonld-java/master/LICENCE log4j https://raw.githubusercontent.com/jsonld-java/jsonld-java/master/LICENCElog4j http://www.apache.org/licenses/LICENSE-2.0.html lucene http://www.apache.org/licenses/LICENSE-2.0.html nanohttp http://elonen.iki.fi/code/nanohttpd/#license rexster-core https://github.com/tinkerpop/rexster/blob/master/LICENSE.txt river http://www.apache.org/licenses/LICENSE-2.0.html semargl https://github.com/levkhomich/semargl/blob/master/LICENSE servlet-api http://www.apache.org/licenses/LICENSE-2.0.html sesame http://www.openrdf.org/download.jsp slf4j http://www.slf4j.org/license.html zookeeper http://www.apache.org/licenses/LICENSE-2.0.html
WARN : NanoSparqlServer.java:517: Starting NSS
WARN : WebAppContext.java:506: Failed startup of context
o.e.j.w.WebAppContext@2db238ce{/blazegraph,file:/usr/share/blazegraph-2.1.4/war/,STARTING}{/usr/share/blazegraph/war/}
java.lang.RuntimeException: java.lang.RuntimeException: addr=-374049 :
cause=com.bigdata.util.ChecksumError:
offset=225590272,nbytes=426,expected=0,actual=27656193
at com.bigdata.rdf.sail.webapp.BigdataRDFServletContextListener.openIndexManager(BigdataRDFServletContextListener.java:805)
at com.bigdata.rdf.sail.webapp.BigdataRDFServletContextListener.contextInitialized(BigdataRDFServletContextListener.java:277)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:798)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:444)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:789)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:294)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1341)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1334)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:741)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:497)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:163)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:132)
at org.eclipse.jetty.server.Server.start(Server.java:387)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:114)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:61)
at org.eclipse.jetty.server.Server.doStart(Server.java:354)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at com.bigdata.rdf.sail.webapp.NanoSparqlServer.awaitServerStart(NanoSparqlServer.java:518)
at com.bigdata.rdf.sail.webapp.NanoSparqlServer.main(NanoSparqlServer.java:482)
Caused by: java.lang.RuntimeException: addr=-374049 :
cause=com.bigdata.util.ChecksumError:
offset=225590272,nbytes=426,expected=0,actual=27656193
at com.bigdata.rwstore.RWStore.getData(RWStore.java:2097)
at com.bigdata.journal.RWStrategy.readFromLocalStore(RWStrategy.java:732)
at com.bigdata.journal.RWStrategy.read(RWStrategy.java:155)
at com.bigdata.journal.AbstractJournal._getCommitRecord(AbstractJournal.java:4601)
at com.bigdata.journal.AbstractJournal.
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dazza-codes
beebs-systap
khteh
Followed the instructions in the blazegraph-deb section to build and install 2.1.4 and it worked at first. But after trying to load a lot of data the system froze. On restart, blazegraph will not restart using
sudo service blazegraph restart(although a following status indicates it is running OK). The log shows the failure to start is acom.bigdata.util.ChecksumError-- is this a bug or a feature?