--- title: "January, 2019" date: 2019-01-02T09:48:30+02:00 author: "Alan Orth" tags: ["Notes"] --- ## 2019-01-02 - Linode alerted that CGSpace (linode18) had a higher outbound traffic rate than normal early this morning - I don't see anything interesting in the web server logs around that time though: ``` # zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "02/Jan/2019:0(1|2|3)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10 92 40.77.167.4 99 210.7.29.100 120 38.126.157.45 177 35.237.175.180 177 40.77.167.32 216 66.249.75.219 225 18.203.76.93 261 46.101.86.248 357 207.46.13.1 903 54.70.40.11 ``` - Analyzing the types of requests made by the top few IPs during that time: ``` # zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "02/Jan/2019:0(1|2|3)" | grep 54.70.40.11 | grep -o -E "(bitstream|discover|handle)" | sort | uniq -c 30 bitstream 534 discover 352 handle # zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "02/Jan/2019:0(1|2|3)" | grep 207.46.13.1 | grep -o -E "(bitstream|discover|handle)" | sort | uniq -c 194 bitstream 345 handle # zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "02/Jan/2019:0(1|2|3)" | grep 46.101.86.248 | grep -o -E "(bitstream|discover|handle)" | sort | uniq -c 261 handle ``` - It's not clear to me what was causing the outbound traffic spike - Oh nice! The once-per-year cron job for rotating the Solr statistics actually worked now (for the first time ever!): ``` Moving: 81742 into core statistics-2010 Moving: 1837285 into core statistics-2011 Moving: 3764612 into core statistics-2012 Moving: 4557946 into core statistics-2013 Moving: 5483684 into core statistics-2014 Moving: 2941736 into core statistics-2015 Moving: 5926070 into core statistics-2016 Moving: 10562554 into core statistics-2017 Moving: 18497180 into core statistics-2018 ``` - This could by why the outbound traffic rate was high, due to the S3 backup that run at 3:30AM... - Run all system updates on DSpace Test (linode19) and reboot the server ## 2019-01-03 - Update local Docker image for DSpace PostgreSQL, re-using the existing data volume: ``` $ sudo docker pull postgres:9.6-alpine $ sudo docker rm dspacedb $ sudo docker run --name dspacedb -v /home/aorth/.local/lib/containers/volumes/dspacedb_data:/var/lib/postgresql/data -e POSTGRES_PASSWORD=postgres -p 5432:5432 -d postgres:9.6-alpine ``` - Testing DSpace 5.9 with Tomcat 8.5.37 on my local machine and I see that Atmire's Listings and Reports still doesn't work - After logging in via XMLUI and clicking the Listings and Reports link from the sidebar it redirects me to a JSPUI login page - If I log in again there the Listings and Reports work... hmm. - The JSPUI application—which Listings and Reports depends upon—also does not load, though the error is perhaps unrelated: ``` 2019-01-03 14:45:21,727 INFO org.dspace.browse.BrowseEngine @ anonymous:session_id=9471D72242DAA05BCC87734FE3C66EA6:ip_addr=127.0.0.1:browse_mini: 2019-01-03 14:45:21,971 INFO org.dspace.app.webui.discovery.DiscoverUtility @ facets for scope, null: 23 2019-01-03 14:45:22,115 WARN org.dspace.app.webui.servlet.InternalErrorServlet @ :session_id=9471D72242DAA05BCC87734FE3C66EA6:internal_error:-- URL Was: http://localhost:8080/jspui/internal-error -- Method: GET -- Parameters were: org.apache.jasper.JasperException: /home.jsp (line: [214], column: [1]) /discovery/static-tagcloud-facet.jsp (line: [57], column: [8]) No tag [tagcloud] defined in tag library imported with prefix [dspace] at org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:41) at org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:291) at org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:97) at org.apache.jasper.compiler.Parser.processIncludeDirective(Parser.java:347) at org.apache.jasper.compiler.Parser.parseIncludeDirective(Parser.java:380) at org.apache.jasper.compiler.Parser.parseDirective(Parser.java:481) at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1445) at org.apache.jasper.compiler.Parser.parseBody(Parser.java:1683) at org.apache.jasper.compiler.Parser.parseOptionalBody(Parser.java:1016) at org.apache.jasper.compiler.Parser.parseCustomTag(Parser.java:1291) at org.apache.jasper.compiler.Parser.parseElements(Parser.java:1470) at org.apache.jasper.compiler.Parser.parse(Parser.java:144) at org.apache.jasper.compiler.ParserController.doParse(ParserController.java:244) at org.apache.jasper.compiler.ParserController.parse(ParserController.java:105) at org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:202) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:373) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:350) at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334) at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:595) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:399) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728) at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:470) at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:395) at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:316) at org.dspace.app.webui.util.JSPManager.showJSP(JSPManager.java:60) at org.apache.jsp.index_jsp._jspService(index_jsp.java:191) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:476) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:386) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:330) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.dspace.utils.servlet.DSpaceWebappServletFilter.doFilter(DSpaceWebappServletFilter.java:78) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.CrawlerSessionManagerValve.invoke(CrawlerSessionManagerValve.java:234) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) ``` - I notice that I get different JSESSIONID cookies for `/` (XMLUI) and `/jspui` (JSPUI) on Tomcat 8.5.37, I wonder if it's the same on Tomcat 7.0.92... yes I do. - Hmm, on Tomcat 7.0.92 I see that I get a `dspace.current.user.id` session cookie after logging into XMLUI, and then when I browse to JSPUI I am still logged in... - I didn't see that cookie being set on Tomcat 8.5.37 - I sent a message to the dspace-tech mailing list to ask ## 2019-01-04 - Linode sent a message last night that CGSpace (linode18) had high CPU usage, but I don't see anything around that time in the web server logs: ``` # zcat --force /var/log/nginx/*.log /var/log/nginx/*.log.1 | grep -E "03/Jan/2019:1(7|8|9)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10 189 207.46.13.192 217 31.6.77.23 340 66.249.70.29 349 40.77.167.86 417 34.218.226.147 630 207.46.13.173 710 35.237.175.180 790 40.77.167.87 1776 66.249.70.27 2099 54.70.40.11 ``` - I'm thinking about trying to validate our `dc.subject` terms against [AGROVOC webservices](http://aims.fao.org/agrovoc/webservices) - There seem to be a few APIs and the documentation is kinda confusing, but I found this REST endpoint that does work well, for example searching for `SOIL`: ``` $ http http://agrovoc.uniroma2.it/agrovoc/rest/v1/search?query=SOIL&lang=en HTTP/1.1 200 OK Access-Control-Allow-Origin: * Connection: Keep-Alive Content-Length: 493 Content-Type: application/json; charset=utf-8 Date: Fri, 04 Jan 2019 13:44:27 GMT Keep-Alive: timeout=5, max=100 Server: Apache Strict-Transport-Security: max-age=63072000; includeSubdomains Vary: Accept X-Content-Type-Options: nosniff X-Frame-Options: ALLOW-FROM http://aims.fao.org { "@context": { "@language": "en", "altLabel": "skos:altLabel", "hiddenLabel": "skos:hiddenLabel", "isothes": "http://purl.org/iso25964/skos-thes#", "onki": "http://schema.onki.fi/onki#", "prefLabel": "skos:prefLabel", "results": { "@container": "@list", "@id": "onki:results" }, "skos": "http://www.w3.org/2004/02/skos/core#", "type": "@type", "uri": "@id" }, "results": [ { "lang": "en", "prefLabel": "soil", "type": [ "skos:Concept" ], "uri": "http://aims.fao.org/aos/agrovoc/c_7156", "vocab": "agrovoc" } ], "uri": "" } ``` - The API does not appear to be case sensitive (searches for `SOIL` and `soil` return the same thing) - I'm a bit confused that there's no obvious return code or status when a term is not found, for example `SOILS`: ``` HTTP/1.1 200 OK Access-Control-Allow-Origin: * Connection: Keep-Alive Content-Length: 367 Content-Type: application/json; charset=utf-8 Date: Fri, 04 Jan 2019 13:48:31 GMT Keep-Alive: timeout=5, max=100 Server: Apache Strict-Transport-Security: max-age=63072000; includeSubdomains Vary: Accept X-Content-Type-Options: nosniff X-Frame-Options: ALLOW-FROM http://aims.fao.org { "@context": { "@language": "en", "altLabel": "skos:altLabel", "hiddenLabel": "skos:hiddenLabel", "isothes": "http://purl.org/iso25964/skos-thes#", "onki": "http://schema.onki.fi/onki#", "prefLabel": "skos:prefLabel", "results": { "@container": "@list", "@id": "onki:results" }, "skos": "http://www.w3.org/2004/02/skos/core#", "type": "@type", "uri": "@id" }, "results": [], "uri": "" } ``` - I guess the `results` object will just be empty... - Another way would be to try with SPARQL, perhaps using the Python 2.7 [sparql-client](https://pypi.org/project/sparql-client/): ``` $ python2.7 -m virtualenv /tmp/sparql $ . /tmp/sparql/bin/activate $ pip install sparql-client ipython $ ipython In [10]: import sparql In [11]: s = sparql.Service("http://agrovoc.uniroma2.it:3030/agrovoc/sparql", "utf-8", "GET") In [12]: statement=('PREFIX skos: ' ...: 'SELECT ' ...: '?label ' ...: 'WHERE { ' ...: '{ ?concept skos:altLabel ?label . } UNION { ?concept skos:prefLabel ?label . } ' ...: 'FILTER regex(str(?label), "^fish", "i") . ' ...: '} LIMIT 10') In [13]: result = s.query(statement) In [14]: for row in result.fetchone(): ...: print(row) ...: (,) (,) (,) (,) (,) (,) (,) (,) (,) (,) ``` - The SPARQL query comes from my notes in [2017-08]({{< relref "2017-08.md" >}})