cgspace-notes/content/posts/2019-04.md

title	date	author	categories
April, 2019	2019-04-01T09:00:43+03:00	Alan Orth	Notes

2019-04-01

• Meeting with AgroKnow to discuss CGSpace, ILRI data, AReS, GARDIAN, etc
  • They asked if we had plans to enable RDF support in CGSpace
• There have been 4,400 more downloads of the CTA Spore publication from those strange Amazon IP addresses today
  • I suspected that some might not be successful, because the stats show less, but today they were all HTTP 200!

# cat /var/log/nginx/access.log /var/log/nginx/access.log.1 | grep 'Spore-192-EN-web.pdf' | grep -E '(18.196.196.108|18.195.78.144|18.195.218.6)' | awk '{print $9}' | sort | uniq -c | sort -n | tail -n 5
   4432 200

• In the last two weeks there have been 47,000 downloads of this same exact PDF by these three IP addresses
• Apply country and region corrections and deletions on DSpace Test and CGSpace:

$ ./fix-metadata-values.py -i /tmp/2019-02-21-fix-9-countries.csv -db dspace -u dspace -p 'fuuu' -f cg.coverage.country -m 228 -t ACTION -d
$ ./fix-metadata-values.py -i /tmp/2019-02-21-fix-4-regions.csv -db dspace -u dspace -p 'fuuu' -f cg.coverage.region -m 231 -t action -d
$ ./delete-metadata-values.py -i /tmp/2019-02-21-delete-2-countries.csv -db dspace -u dspace -p 'fuuu' -m 228 -f cg.coverage.country -d
$ ./delete-metadata-values.py -i /tmp/2019-02-21-delete-1-region.csv -db dspace -u dspace -p 'fuuu' -m 231 -f cg.coverage.region -d

2019-04-02

• CTA says the Amazon IPs are AWS gateways for real user traffic
• I was trying to add Felix Shaw's account back to the Administrators group on DSpace Test, but I couldn't find his name in the user search of the groups page
  • If I searched for "Felix" or "Shaw" I saw other matches, included one for his personal email address!
  • I ended up finding him via searching for his email address

2019-04-03

• Maria from Bioversity emailed me a list of new ORCID identifiers for their researchers so I will add them to our controlled vocabulary
  • First I need to extract the ones that are unique from their list compared to our existing one:

$ cat dspace/config/controlled-vocabularies/cg-creator-id.xml /tmp/bioversity.txt | grep -oE '[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}-[A-Z0-9]{4}' | sort -u > /tmp/2019-04-03-orcid-ids.txt

• We currently have 1177 unique ORCID identifiers, and this brings our total to 1237!
• Next I will resolve all their names using my resolve-orcids.py script:

$ ./resolve-orcids.py -i /tmp/2019-04-03-orcid-ids.txt -o 2019-04-03-orcid-ids.txt -d

• After that I added the XML formatting, formatted the file with tidy, and sorted the names in vim
• One user's name has changed so I will update those using my fix-metadata-values.py script:

$ ./fix-metadata-values.py -i 2019-04-03-update-orcids.csv -db dspace -u dspace -p 'fuuu' -f cg.creator.id -m 240 -t correct -d

• I created a pull request and merged the changes to the 5_x-prod branch (#417)
• A few days ago I noticed some weird update process for the statistics-2018 Solr core and I see it's still going:

2019-04-03 16:34:02,262 INFO  org.dspace.statistics.SolrLogger @ Updating : 1754500/21701 docs in http://localhost:8081/solr//statistics-2018

• Interestingly, there are 5666 occurences, and they are mostly for the 2018 core:

$ grep 'org.dspace.statistics.SolrLogger @ Updating' /home/cgspace.cgiar.org/log/dspace.log.2019-04-03 | awk '{print $11}' | sort | uniq -c
      1 
      3 http://localhost:8081/solr//statistics-2017
   5662 http://localhost:8081/solr//statistics-2018

• I will have to keep an eye on it because nothing should be updating 2018 stats in 2019...

2019-04-05

• Uptime Robot reported that CGSpace (linode18) went down tonight
• I see there are lots of PostgreSQL connections:

$ psql -c 'select * from pg_stat_activity' | grep -o -E '(dspaceWeb|dspaceApi|dspaceCli)' | sort | uniq -c
      5 dspaceApi
     10 dspaceCli
    250 dspaceWeb

• I still see those weird messages about updating the statistics-2018 Solr core:

2019-04-05 21:06:53,770 INFO  org.dspace.statistics.SolrLogger @ Updating : 2444600/21697 docs in http://localhost:8081/solr//statistics-2018

• Looking at iostat 1 10 I also see some CPU steal has come back, and I can confirm it by looking at the Munin graphs:

• The other thing visible there is that the past few days the load has spiked to 500% and I don't think it's a coincidence that the Solr updating thing is happening...
• I ran all system updates and rebooted the server
  • The load was lower on the server after reboot, but Solr didn't come back up properly according to the Solr Admin UI:

statistics-2017: org.apache.solr.common.SolrException:org.apache.solr.common.SolrException: Error opening new searcher 

• I restarted it again and all the Solr cores came up properly...

2019-04-06

• Udana asked why item 10568/91278 didn't have an Altmetric badge on CGSpace, but on the WLE website it does
  • I looked and saw that the WLE website is using the Altmetric score associated with the DOI, and that the Handle has no score at all
  • I tweeted the item and I assume this will link the Handle with the DOI in the system
  • Twenty minutes later I see the same Altmetric score (9) on CGSpace
• Linode sent an alert that there was high CPU usage this morning on CGSpace (linode18) and these were the top IPs in the webserver access logs around the time:

# zcat --force /var/log/nginx/{access,error,library-access}.log /var/log/nginx/{access,error,library-access}.log.1 | grep -E "06/Apr/2019:(06|07|08|09)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
    222 18.195.78.144
    245 207.46.13.58
    303 207.46.13.194
    328 66.249.79.33
    564 207.46.13.210
    566 66.249.79.62
    575 40.77.167.66
   1803 66.249.79.59
   2834 2a01:4f8:140:3192::2
   9623 45.5.184.72
# zcat --force /var/log/nginx/{rest,oai}.log /var/log/nginx/{rest,oai}.log.1 | grep -E "06/Apr/2019:(06|07|08|09)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
     31 66.249.79.62
     41 207.46.13.210
     42 40.77.167.66
     54 42.113.50.219
    132 66.249.79.59
    785 2001:41d0:d:1990::
   1164 45.5.184.72
   2014 50.116.102.77
   4267 45.5.186.2
   4893 205.186.128.185

• 45.5.184.72 is in Colombia so it's probably CIAT, and I see they are indeed trying to get crawl the Discover pages on CIAT's datasets collection:

GET /handle/10568/72970/discover?filtertype_0=type&filtertype_1=author&filter_relational_operator_1=contains&filter_relational_operator_0=equals&filter_1=&filter_0=Dataset&filtertype=dateIssued&filter_relational_operator=equals&filter=2014

• Their user agent is the one I added to the badbots list in nginx last week: "GuzzleHttp/6.3.3 curl/7.47.0 PHP/7.0.30-0ubuntu0.16.04.1"
• They made 22,000 requests to Discover on this collection today alone (and it's only 11AM):

# cat /var/log/nginx/access.log /var/log/nginx/access.log.1 | grep "06/Apr/2019" | grep 45.5.184.72 | grep -oE '/handle/[0-9]+/[0-9]+/discover' | sort | uniq -c 
  22077 /handle/10568/72970/discover

• Yesterday they made 43,000 requests and we actually blocked most of them:

# zcat --force /var/log/nginx/access.log /var/log/nginx/access.log.1 /var/log/nginx/access.log.2.gz | grep "05/Apr/2019" | grep 45.5.184.72 | grep -oE '/handle/[0-9]+/[0-9]+/discover' | sort | uniq -c 
  43631 /handle/10568/72970/discover
# zcat --force /var/log/nginx/access.log /var/log/nginx/access.log.1 /var/log/nginx/access.log.2.gz | grep "05/Apr/2019" | grep 45.5.184.72 | grep -E '/handle/[0-9]+/[0-9]+/discover' | awk '{print $9}' | sort | uniq -c 
    142 200
  43489 503

• I need to find a contact at CIAT to tell them to use the REST API rather than crawling Discover
• Maria from Bioversity recommended that we use the phrase "AGROVOC subject" instead of "Subject" in Listings and Reports
  • I made a pull request to update this and merged it to the 5_x-prod branch (#418)

2019-04-07

• Looking into the impact of harvesters like 45.5.184.72, I see in Solr that this user is not categorized as a bot so it definitely impacts the usage stats by some tens of thousands per day
• Last week CTA switched their frontend code to use HEAD requests instead of GET requests for bitstreams
  • I am trying to see if these are registered as downloads in Solr or not
  • I see 96,925 downloads from their AWS gateway IPs in 2019-03:

$ http --print b 'http://localhost:8081/solr/statistics/select?q=type%3A0+AND+(ip%3A18.196.196.108+OR+ip%3A18.195.78.144+OR+ip%3A18.195.218.6)&fq=statistics_type%3Aview&fq=bundleName%3AORIGINAL&fq=dateYearMonth%3A2019-03&rows=0&wt=json&indent=true'
{
    "response": {
        "docs": [],
        "numFound": 96925,
        "start": 0
    },
    "responseHeader": {
        "QTime": 1,
        "params": {
            "fq": [
                "statistics_type:view",
                "bundleName:ORIGINAL",
                "dateYearMonth:2019-03"
            ],
            "indent": "true",
            "q": "type:0 AND (ip:18.196.196.108 OR ip:18.195.78.144 OR ip:18.195.218.6)",
            "rows": "0",
            "wt": "json"
        },
        "status": 0
    }
}

• Strangely I don't see many hits in 2019-04:

$ http --print b 'http://localhost:8081/solr/statistics/select?q=type%3A0+AND+(ip%3A18.196.196.108+OR+ip%3A18.195.78.144+OR+ip%3A18.195.218.6)&fq=statistics_type%3Aview&fq=bundleName%3AORIGINAL&fq=dateYearMonth%3A2019-04&rows=0&wt=json&indent=true'
{
    "response": {
        "docs": [],
        "numFound": 38,
        "start": 0
    },
    "responseHeader": {
        "QTime": 1,
        "params": {
            "fq": [
                "statistics_type:view",
                "bundleName:ORIGINAL",
                "dateYearMonth:2019-04"
            ],
            "indent": "true",
            "q": "type:0 AND (ip:18.196.196.108 OR ip:18.195.78.144 OR ip:18.195.218.6)",
            "rows": "0",
            "wt": "json"
        },
        "status": 0
    }
}

• Making some tests on GET vs HEAD requests on the CTA Spore 192 item on DSpace Test:

$ http --print Hh GET https://dspacetest.cgiar.org/bitstream/handle/10568/100289/Spore-192-EN-web.pdf
GET /bitstream/handle/10568/100289/Spore-192-EN-web.pdf HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Host: dspacetest.cgiar.org
User-Agent: HTTPie/1.0.2

HTTP/1.1 200 OK
Connection: keep-alive
Content-Language: en-US
Content-Length: 2069158
Content-Type: application/pdf;charset=ISO-8859-1
Date: Sun, 07 Apr 2019 08:38:34 GMT
Expires: Sun, 07 Apr 2019 09:38:34 GMT
Last-Modified: Thu, 14 Mar 2019 11:20:05 GMT
Server: nginx
Set-Cookie: JSESSIONID=21A492CC31CA8845278DFA078BD2D9ED; Path=/; Secure; HttpOnly
Vary: User-Agent
X-Cocoon-Version: 2.2.0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Robots-Tag: none
X-XSS-Protection: 1; mode=block

$ http --print Hh HEAD https://dspacetest.cgiar.org/bitstream/handle/10568/100289/Spore-192-EN-web.pdf      
HEAD /bitstream/handle/10568/100289/Spore-192-EN-web.pdf HTTP/1.1                                                            
Accept: */*
Accept-Encoding: gzip, deflate
Connection: keep-alive
Host: dspacetest.cgiar.org
User-Agent: HTTPie/1.0.2

HTTP/1.1 200 OK
Connection: keep-alive
Content-Language: en-US
Content-Length: 2069158
Content-Type: application/pdf;charset=ISO-8859-1
Date: Sun, 07 Apr 2019 08:39:01 GMT
Expires: Sun, 07 Apr 2019 09:39:01 GMT
Last-Modified: Thu, 14 Mar 2019 11:20:05 GMT
Server: nginx
Set-Cookie: JSESSIONID=36C8502257CC6C72FD3BC9EBF91C4A0E; Path=/; Secure; HttpOnly                                            
Vary: User-Agent
X-Cocoon-Version: 2.2.0
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Robots-Tag: none
X-XSS-Protection: 1; mode=block

• And from the server side, the nginx logs show:

78.x.x.x - - [07/Apr/2019:01:38:35 -0700] "GET /bitstream/handle/10568/100289/Spore-192-EN-web.pdf HTTP/1.1" 200 68078 "-" "HTTPie/1.0.2"
78.x.x.x - - [07/Apr/2019:01:39:01 -0700] "HEAD /bitstream/handle/10568/100289/Spore-192-EN-web.pdf HTTP/1.1" 200 0 "-" "HTTPie/1.0.2"

• So definitely the size of the transfer is more efficient with a HEAD, but I need to wait to see if these requests show up in Solr
  • After twenty minutes of waiting I still don't see any new requests in the statistics core, but when I try the requests from the command line again I see the following in the DSpace log:

2019-04-07 02:05:30,966 INFO  org.dspace.usage.LoggerUsageEventListener @ anonymous:session_id=EF2DB6E4F69926C5555B3492BB0071A8:ip_addr=78.x.x.x:view_bitstream:bitstream_id=165818
2019-04-07 02:05:39,265 INFO  org.dspace.usage.LoggerUsageEventListener @ anonymous:session_id=B6381FC590A5160D84930102D068C7A3:ip_addr=78.x.x.x:view_bitstream:bitstream_id=165818

• So my inclination is that both HEAD and GET requests are registered as views as far as Solr and DSpace are concerned
  • Strangely, the statistics Solr core says it hasn't been modified in 24 hours, so I tried to start the "optimize" process from the Admin UI and I see this in the Solr log:

2019-04-07 02:08:44,186 INFO  org.apache.solr.update.UpdateHandler @ start commit{,optimize=true,openSearcher=true,waitSearcher=true,expungeDeletes=false,softCommit=false,prepareCommit=false}

• Ugh, even after optimizing there are no Solr results for requests from my IP, and actually I only see 18 results from 2019-04 so far and none of them are statistics_type:view... very weird
  • I don't even see many hits for days after 2019-03-17, when I migrated the server to Ubuntu 18.04 and copied the statistics core from CGSpace (linode18)
  • I will try to re-deploy the 5_x-dev branch and test again
• According to the DSpace 5.x Solr documentation the default commit time is after 15 minutes or 10,000 documents (see solrconfig.xml)
• I looped some GET and HEAD requests to a bitstream on my local instance and after some time I see that they do register as downloads (even though they are internal):

$ http --print b 'http://localhost:8080/solr/statistics/select?q=type%3A0+AND+time%3A2019-04-07*&fq=statistics_type%3Aview&fq=isInternal%3Atrue&rows=0&wt=json&indent=true'
{
    "response": {
        "docs": [],
        "numFound": 909,
        "start": 0
    },
    "responseHeader": {
        "QTime": 0,
        "params": {
            "fq": [
                "statistics_type:view",
                "isInternal:true"
            ],
            "indent": "true",
            "q": "type:0 AND time:2019-04-07*",
            "rows": "0",
            "wt": "json"
        },
        "status": 0
    }
}

• I confirmed the same on CGSpace itself after making one HEAD request
• So I'm pretty sure it's something about DSpace Test using the CGSpace statistics core, and not that I deployed Solr 4.10.4 there last week
  • I deployed Solr 4.10.4 locally and ran a bunch of requests for bitstreams and they do show up in the Solr statistics log, so the issue must be with re-using the existing Solr core from CGSpace
• Now this gets more frustrating: I did the same GET and HEAD tests on a local Ubuntu 16.04 VM with Solr 4.10.2 and 4.10.4 and the statistics are recorded
  • This leads me to believe there is something specifically wrong with DSpace Test (linode19)
  • The only thing I can think of is that the JVM is using G1GC instead of ConcMarkSweepGC
• Holy shit, all this is actually because of the GeoIP1 deprecation and a missing GeoLiteCity.dat
  • For some reason the missing GeoIP data causes stats to not be recorded whatsoever and there is no error!
  • See: DS-3986
  • See: DS-4020
  • See: DS-3832
  • DSpace 5.10 upgraded to use GeoIP2, but we are on 5.8 so I just copied the missing database file from another server because it has been removed from MaxMind's server as of 2018-04-01
  • Now I made 100 requests and I see them in the Solr statistics... fuck my life for wasting five hours debugging this
• UptimeRobot said CGSpace went down and up a few times tonight, and my first instict was to check iostat 1 10 and I saw that CPU steal is around 10–30 percent right now...
• The load average is super high right now, as I've noticed the last few times UptimeRobot said that CGSpace went down:

$ cat /proc/loadavg 
10.70 9.17 8.85 18/633 4198

• According to the server logs there is actually not much going on right now:

# zcat --force /var/log/nginx/{access,library-access}.log /var/log/nginx/{access,library-access}.log.1 | grep -E "07/Apr/2019:(18|19|20)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
    118 18.195.78.144
    128 207.46.13.219
    129 167.114.64.100
    159 207.46.13.129
    179 207.46.13.33
    188 2408:8214:7a00:868f:7c1e:e0f3:20c6:c142
    195 66.249.79.59
    363 40.77.167.21
    740 2a01:4f8:140:3192::2
   4823 45.5.184.72
# zcat --force /var/log/nginx/{rest,oai}.log /var/log/nginx/{rest,oai}.log.1 | grep -E "07/Apr/2019:(18|19|20)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
      3 66.249.79.62
      3 66.249.83.196
      4 207.46.13.86
      5 82.145.222.150
      6 2a01:4f9:2b:1263::2
      6 41.204.190.40
      7 35.174.176.49
     10 40.77.167.21
     11 194.246.119.6
     11 66.249.79.59

• 45.5.184.72 is CIAT, who I already blocked and am waiting to hear from
• 2a01:4f8:140:3192::2 is BLEXbot, which should be handled by the Tomcat Crawler Session Manager Valve
• 2408:8214:7a00:868f:7c1e:e0f3:20c6:c142 is some stupid Chinese bot making malicious POST requests
• There are free database connections in the pool:

$ psql -c 'select * from pg_stat_activity' | grep -o -E '(dspaceWeb|dspaceApi|dspaceCli)' | sort | uniq -c
      5 dspaceApi
      7 dspaceCli
     23 dspaceWeb

• It seems that the issue with CGSpace being "down" is actually because of CPU steal again!!!
• I opened a ticket with support and asked them to migrate the VM to a less busy host

2019-04-08

• Start checking IITA's last round of batch uploads from March on DSpace Test (20193rd.xls)
  • Lots of problems with affiliations, I had to correct about sixty of them
  • I used lein to host the latest CSV of our affiliations for OpenRefine to reconcile against:

$ lein run ~/src/git/DSpace/2019-02-22-affiliations.csv name id

• After matching the values and creating some new matches I had trouble remembering how to copy the reconciled values to a new column
  • The matched values can be accessed with cell.recon.match.name, but some of the new values don't appear, perhaps because I edited the original cell values?
  • I ended up using this GREL expression to copy all values to a new column:

if(cell.recon.matched, cell.recon.match.name, value)

• See the OpenRefine variables documentation for more notes about the recon object
• I also noticed a handful of errors in our current list of affiliations so I corrected them:

$ ./fix-metadata-values.py -i 2019-04-08-fix-13-affiliations.csv -db dspace -u dspace -p 'fuuu' -f cg.contributor.affiliation -m 211 -t correct -d

• We should create a new list of affiliations to update our controlled vocabulary again
• I dumped a list of the top 1500 affiliations:

dspace=# \COPY (SELECT DISTINCT text_value, count(*) FROM metadatavalue WHERE metadata_field_id = 211 AND resource_type_id = 2 GROUP BY text_value ORDER BY count DESC LIMIT 1500) to /tmp/2019-04-08-top-1500-affiliations.csv WITH CSV HEADER;
COPY 1500

• Fix a few more messed up affiliations that have return characters in them (use Ctrl-V Ctrl-M to re-create control character):

dspace=# UPDATE metadatavalue SET text_value='International Institute for Environment and Development' WHERE resource_type_id = 2 AND metadata_field_id = 211 AND text_value LIKE 'International Institute^M%';
dspace=# UPDATE metadatavalue SET text_value='Kenya Agriculture and Livestock Research Organization' WHERE resource_type_id = 2 AND metadata_field_id = 211 AND text_value LIKE 'Kenya Agricultural  and Livestock  Research^M%';

• I noticed a bunch of subjects and affiliations that use stylized apostrophes so I will export those and then batch update them:

dspace=# \COPY (SELECT DISTINCT text_value FROM metadatavalue WHERE resource_type_id = 2 AND metadata_field_id = 211 AND text_value LIKE '%’%') to /tmp/2019-04-08-affiliations-apostrophes.csv WITH CSV HEADER;
COPY 60
dspace=# \COPY (SELECT DISTINCT text_value FROM metadatavalue WHERE resource_type_id = 2 AND metadata_field_id = 57 AND text_value LIKE '%’%') to /tmp/2019-04-08-subject-apostrophes.csv WITH CSV HEADER;
COPY 20

• I cleaned them up in OpenRefine and then applied the fixes on CGSpace and DSpace Test:

$ ./fix-metadata-values.py -i /tmp/2019-04-08-fix-60-affiliations-apostrophes.csv -db dspace -u dspace -p 'fuuu' -f cg.contributor.affiliation -m 211 -t correct -d
$ ./fix-metadata-values.py -i /tmp/2019-04-08-fix-20-subject-apostrophes.csv -db dspace -u dspace -p 'fuuu' -f dc.subject -m 57 -t correct -d

• UptimeRobot said that CGSpace (linode18) went down tonight
  • The load average is at 9.42, 8.87, 7.87
  • I looked at PostgreSQL and see shitloads of connections there:

$ psql -c 'select * from pg_stat_activity' | grep -o -E '(dspaceWeb|dspaceApi|dspaceCli)' | sort | uniq -c
      5 dspaceApi
      7 dspaceCli
    250 dspaceWeb

• On a related note I see connection pool errors in the DSpace log:

2019-04-08 19:01:10,472 ERROR org.dspace.storage.rdbms.DatabaseManager @ SQL connection Error - 
org.apache.tomcat.jdbc.pool.PoolExhaustedException: [http-bio-127.0.0.1-8443-exec-319] Timeout: Pool empty. Unable to fetch a connection in 5 seconds, none available[size:250; busy:250; idle:0; lastwait:5000].

• But still I see 10 to 30% CPU steal in iostat that is also reflected in the Munin graphs:

• Linode Support still didn't respond to my ticket from yesterday, so I attached a new output of iostat 1 10 and asked them to move the VM to a less busy host
• The web server logs are not very busy:

# zcat --force /var/log/nginx/{access,library-access}.log /var/log/nginx/{access,library-access}.log.1 | grep -E "08/Apr/2019:(17|18|19)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
    124 40.77.167.135
    135 95.108.181.88
    139 157.55.39.206
    190 66.249.79.133
    202 45.5.186.2
    284 207.46.13.95
    359 18.196.196.108
    457 157.55.39.164
    457 40.77.167.132
   3822 45.5.184.72
# zcat --force /var/log/nginx/{rest,oai}.log /var/log/nginx/{rest,oai}.log.1 | grep -E "08/Apr/2019:(17|18|19)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
      5 129.0.79.206
      5 41.205.240.21
      7 207.46.13.95
      7 66.249.79.133
      7 66.249.79.135
      7 95.108.181.88
      8 40.77.167.111
     19 157.55.39.164
     20 40.77.167.132
    370 51.254.16.223

2019-04-09

• Linode sent an alert that CGSpace (linode18) was 440% CPU for the last two hours this morning
• Here are the top IPs in the web server logs around that time:

# zcat --force /var/log/nginx/{rest,oai}.log /var/log/nginx/{rest,oai}.log.1 | grep -E "09/Apr/2019:(06|07|08)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
     18 66.249.79.139
     21 157.55.39.160
     29 66.249.79.137
     38 66.249.79.135
     50 34.200.212.137
     54 66.249.79.133
    100 102.128.190.18
   1166 45.5.184.72
   4251 45.5.186.2
   4895 205.186.128.185
# zcat --force /var/log/nginx/{access,library-access}.log /var/log/nginx/{access,library-access}.log.1 | grep -E "09/Apr/2019:(06|07|08)" | awk '{print $1}' | sort | uniq -c | sort -n | tail -n 10
    200 144.48.242.108
    202 207.46.13.185
    206 18.194.46.84
    239 66.249.79.139
    246 18.196.196.108
    274 31.6.77.23
    289 66.249.79.137
    312 157.55.39.160
    441 66.249.79.135
    856 66.249.79.133

• 45.5.186.2 is at CIAT in Colombia and I see they are mostly making requests to the REST API, but also to XMLUI with the following user agent:

Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36

• Database connection usage looks fine:

$ psql -c 'select * from pg_stat_activity' | grep -o -E '(dspaceWeb|dspaceApi|dspaceCli)' | sort | uniq -c
      5 dspaceApi
      7 dspaceCli
     11 dspaceWeb

• Ironically I do still see some 2 to 10% of CPU steal in iostat 1 10
• Leroy from CIAT contacted me to say he knows the team who is making all those requests to CGSpace
  • I told them how to use the REST API to get the CIAT Datasets collection and enumerate its items
• In other news, Linode staff identified a noisy neighbor sharing our host and migrated it elsewhere last night

2019-04-10

• Abenet pointed out a possibility of validating funders against the CrossRef API
• Note that if you use HTTPS and specify a contact address in the API request you have less likelihood of being blocked

$ http 'https://api.crossref.org/funders?query=mercator&mailto=me@cgiar.org'

• Otherwise, they provide the funder data in CSV and RDF format
• I did a quick test with the recent IITA records against reconcile-csv in OpenRefine and it matched a few, but the ones that didn't match will need a human to go and do some manual checking and informed decision making...
• If I want to write a script for this I could use the Python habanero library:

from habanero import Crossref
cr = Crossref(mailto="me@cgiar.org")
x = cr.funders(query = "mercator")

2019-04-11

• Continue proofing IITA's last round of batch uploads from March on DSpace Test (20193rd.xls)
  • One misspelled country
  • Three incorrect regions
  • Potential duplicates (same DOI, similar title, same authors):
    • 10568/100580 and 10568/100579
    • 10568/100444 and 10568/100423
  • Two DOIs with incorrect URL formatting
  • Two misspelled IITA subjects
  • Two authors with smart quotes
  • Lots of issues with sponsors
  • One misspelled "Peer review"
  • One invalid ISBN that I fixed by Googling the title
  • Lots of issues with sponsors (German Aid Agency, Swiss Aid Agency, Italian Aid Agency, Dutch Aid Agency, etc)
  • I validated all the AGROVOC subjects against our latest list with reconcile-csv
    • About 720 of the 900 terms were matched, then I checked and fixed or deleted the rest manually
• I captured a few general corrections and deletions for AGROVOC subjects while looking at IITA's records, so I applied them to DSpace Test and CGSpace:

$ ./fix-metadata-values.py -i /tmp/2019-04-11-fix-14-subjects.csv -db dspace -u dspace -p 'fuuu' -f dc.subject -m 57 -t correct -d
$ ./delete-metadata-values.py -i /tmp/2019-04-11-delete-6-subjects.csv -db dspace -u dspace -p 'fuuu' -m 57 -f dc.subject -d

• Answer more questions about DOIs and Altmetric scores from WLE
• Answer more questions about DOIs and Altmetric scores from IWMI
  • They can't seem to understand the Altmetric + Twitter flow for associating Handles and DOIs
  • To make things worse, many of their items DON'T have DOIs, so when Altmetric harvests them of course there is no link! - Then, a bunch of their items don't have scores because they never tweeted them!
  • They added a DOI to this old item 10567/97087 this morning and wonder why Altmetric's score hasn't linked with the DOI magically
  • We should check in a week to see if Altmetric will make the association after one week when they harvest again

2019-04-13

• I copied the statistics and statistics-2018 Solr cores from CGSpace to my local machine and watched the Java process in VisualVM while indexing item views and downloads with my dspace-statistics-api:

• It took about eight minutes to index 784 pages of item views and 268 of downloads, and you can see a clear "sawtooth" pattern in the garbage collection
• I am curious if the GC pattern would be different if I switched from the -XX:+UseConcMarkSweepGC to G1GC
• I switched to G1GC and restarted Tomcat but for some reason I couldn't see the Tomcat PID in VisualVM...
  • Anyways, the indexing process took much longer, perhaps twice as long!
• I tried again with the GC tuning settings from the Solr 4.10.4 release:

2019-04-14

• Change DSpace Test (linode19) to use the Java GC tuning from the Solr 4.14.4 startup script:

GC_TUNE="-XX:NewRatio=3 \
    -XX:SurvivorRatio=4 \
    -XX:TargetSurvivorRatio=90 \
    -XX:MaxTenuringThreshold=8 \
    -XX:+UseConcMarkSweepGC \
    -XX:+UseParNewGC \
    -XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
    -XX:+CMSScavengeBeforeRemark \
    -XX:PretenureSizeThreshold=64m \
    -XX:+UseCMSInitiatingOccupancyOnly \
    -XX:CMSInitiatingOccupancyFraction=50 \
    -XX:CMSMaxAbortablePrecleanTime=6000 \
    -XX:+CMSParallelRemarkEnabled \
    -XX:+ParallelRefProcEnabled"

• I need to remember to check the Munin JVM graphs in a few days
• It might be placebo, but the site does feel snappier...

2019-04-15

• Rework the dspace-statistics-api to use the vanilla Python requests library instead of Solr client
  • Tag version 1.0.0 and deploy it on DSpace Test
• Pretty annoying to see CGSpace (linode18) with 20–50% CPU steal according to iostat 1 10, though I haven't had any Linode alerts in a few days
• Abenet sent me a list of ILRI items that don't have CRPs added to them
  • The spreadsheet only had Handles (no IDs), so I'm experimenting with using Python in OpenRefine to get the IDs
  • I cloned the handle column and then did a transform to get the IDs from the CGSpace REST API:

import json
import re
import urllib
import urllib2

handle = re.findall('[0-9]+/[0-9]+', value)

url = 'https://cgspace.cgiar.org/rest/handle/' + handle[0]
req = urllib2.Request(url)
req.add_header('User-agent', 'Alan Python bot')
res = urllib2.urlopen(req)
data = json.load(res)
item_id = data['id']

return item_id

• Luckily none of the items already had CRPs, so I didn't have to worry about them getting removed
  • It would have been much trickier if I had to get the CRPs for the items first, then add the CRPs...
• I ran a full Discovery indexing on CGSpace because I didn't do it after all the metadata updates last week:

$ time schedtool -B -e ionice -c2 -n7 nice -n19 dspace index-discovery -b

real    82m45.324s
user    7m33.446s
sys     2m13.463s

2019-04-16

• Export IITA's community from CGSpace because they want to experiment with importing it into their internal DSpace for some testing or something

2019-04-17

• Reading an interesting blog post about Solr caching
• Did some tests of the dspace-statistics-api on my local DSpace instance with 28 million documents in a sharded statistics core (statistics and statistics-2018) and monitored the memory usage of Tomcat in VisualVM
• 4GB heap, CMS GC, 512 filter cache, 512 query cache, with 28 million documents in two shards
  • Run 1:
    • Time: 3.11s user 0.44s system 0% cpu 13:45.07 total
    • Tomcat (not Solr) max JVM heap usage: 2.04 GiB
  • Run 2:
    • Time: 3.23s user 0.43s system 0% cpu 13:46.10 total
    • Tomcat (not Solr) max JVM heap usage: 2.06 GiB
  • Run 3:
    • Time: 3.23s user 0.42s system 0% cpu 13:14.70 total
    • Tomcat (not Solr) max JVM heap usage: 2.13 GiB
    • filterCache size: 482, cumulative_lookups: 7062712, cumulative_hits: 167903, cumulative_hitratio: 0.02
    • queryResultCache size: 2
• 4GB heap, CMS GC, 1024 filter cache, 512 query cache, with 28 million documents in two shards
  • Run 1:
    • Time: 2.92s user 0.39s system 0% cpu 12:33.08 total
    • Tomcat (not Solr) max JVM heap usage: 2.16 GiB
  • Run 2:
    • Time: 3.10s user 0.39s system 0% cpu 12:25.32 total
    • Tomcat (not Solr) max JVM heap usage: 2.07 GiB
  • Run 3:
    • Time: 3.29s user 0.36s system 0% cpu 11:53.47 total
    • Tomcat (not Solr) max JVM heap usage: 2.08 GiB
    • filterCache size: 951, cumulative_lookups: 7062712, cumulative_hits: 254379, cumulative_hitratio: 0.04
• 4GB heap, CMS GC, 2048 filter cache, 512 query cache, with 28 million documents in two shards
  • Run 1:
    • Time: 2.90s user 0.48s system 0% cpu 10:37.31 total
    • Tomcat max JVM heap usage: 1.96 GiB
    • filterCache size: 1901, cumulative_lookups: 2354237, cumulative_hits: 180111, cumulative_hitratio: 0.08
  • Run 2:
    • Time: 2.97s user 0.39s system 0% cpu 10:40.06 total
    • Tomcat max JVM heap usage: 2.09 GiB
    • filterCache size: 1901, cumulative_lookups: 4708473, cumulative_hits: 360068, cumulative_hitratio: 0.08
  • Run 3:
    • Time: 3.28s user 0.37s system 0% cpu 10:49.56 total
    • Tomcat max JVM heap usage: 2.05 GiB
    • filterCache size: 1901, cumulative_lookups: 7062712, cumulative_hits: 540020, cumulative_hitratio: 0.08
• 4GB heap, CMS GC, 4096 filter cache, 512 query cache, with 28 million documents in two shards
  • Run 1:
    • Time: 2.88s user 0.35s system 0% cpu 8:29.55 total
    • Tomcat max JVM heap usage: 2.15 GiB
    • filterCache size: 3770, cumulative_lookups: 2354237, cumulative_hits: 414512, cumulative_hitratio: 0.18
  • Run 2:
    • Time: 3.01s user 0.38s system 0% cpu 9:15.65 total
    • Tomcat max JVM heap usage: 2.17 GiB
    • filterCache size: 3945, cumulative_lookups: 4708473, cumulative_hits: 829093, cumulative_hitratio: 0.18
  • Run 3:
    • Time: 3.01s user 0.40s system 0% cpu 9:01.31 total
    • Tomcat max JVM heap usage: 2.07 GiB
    • filterCache size: 3770, cumulative_lookups: 7062712, cumulative_hits: 1243632, cumulative_hitratio: 0.18
• The biggest takeaway I have is that this workload benefits from a larger filterCache (for Solr fq parameter), but barely uses the queryResultCache (for Solr q parameter) at all
  • The number of hits goes up and the time taken decreases when we increase the filterCache, and total JVM heap memory doesn't seem to increase much at all
  • I guess the queryResultCache size is always 2 because I'm only doing two queries: type:0 and type:2 (downloads and views, respectively)
• Here is the general pattern of running three sequential indexing runs as seen in VisualVM while monitoring the Tomcat process:

• I ran one test with a filterCache of 16384 to try to see if I could make the Tomcat JVM memory balloon, but actually it drastically increased the performance and memory usage of the dspace-statistics-api indexer
• 4GB heap, CMS GC, 16384 filter cache, 512 query cache, with 28 million documents in two shards
  • Run 1:
    • Time: 2.85s user 0.42s system 2% cpu 2:28.92 total
    • Tomcat max JVM heap usage: 1.90 GiB
    • filterCache size: 14851, cumulative_lookups: 2354237, cumulative_hits: 2331186, cumulative_hitratio: 0.99
  • Run 2:
    • Time: 2.90s user 0.37s system 2% cpu 2:23.50 total
    • Tomcat max JVM heap usage: 1.27 GiB
    • filterCache size: 15834, cumulative_lookups: 4708476, cumulative_hits: 4664762, cumulative_hitratio: 0.99
  • Run 3:
    • Time: 2.93s user 0.39s system 2% cpu 2:26.17 total
    • Tomcat max JVM heap usage: 1.05 GiB
    • filterCache size: 15248, cumulative_lookups: 7062715, cumulative_hits: 6998267, cumulative_hitratio: 0.99
• The JVM garbage collection graph is MUCH flatter, and memory usage is much lower (not to mention a drop in GC-related CPU usage)!

• I will deploy this filterCache setting on DSpace Test (linode19)
• Run all system updates on DSpace Test (linode19) and reboot it
• Lots of CPU steal going on still on CGSpace (linode18):

2019-04-18

• I've been trying to copy the statistics-2018 Solr core from CGSpace to DSpace Test since yesterday, but the network speed is like 20KiB/sec
  • I opened a support ticket to ask Linode to investigate
  • They asked me to send an mtr report from Fremont to Frankfurt and vice versa
• Deploy Tomcat 7.0.94 on DSpace Test (linode19)
  • Also, I realized that the CMS GC changes I deployed a few days ago were ignored by Tomcat because of something with how Ansible formatted the options string
  • I needed to use the "folded" YAML variable format >- (with the dash so it doesn't add a return at the end)
• UptimeRobot says that CGSpace went "down" this afternoon, but I looked at the CPU steal with iostat 1 10 and it's in the 50s and 60s
  • The munin graph shows a lot of CPU steal (red) currently (and over all during the week):

• I opened a ticket with Linode to migrate us somewhere
  • They agreed to migrate us to a quieter host

2019-04-20

• Linode agreed to move CGSpace (linode18) to a new machine shortly after I filed my ticket about CPU steal two days ago and now the load is much more sane:

• For future reference, Linode mentioned that they consider CPU steal above 8% to be significant
• Regarding the other Linode issue about speed, I did a test with iperf between linode18 and linode19:

# iperf -s
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
[  4] local 45.79.x.x port 5001 connected with 139.162.x.x port 51378
------------------------------------------------------------
Client connecting to 139.162.x.x, TCP port 5001
TCP window size: 85.0 KByte (default)
------------------------------------------------------------
[  5] local 45.79.x.x port 36440 connected with 139.162.x.x port 5001
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.2 sec   172 MBytes   142 Mbits/sec
[  4]  0.0-10.5 sec   202 MBytes   162 Mbits/sec

• Even with the software firewalls disabled the rsync speed was low, so it's not a rate limiting issue
• I also tried to download a file over HTTPS from CGSpace to DSpace Test, but it was capped at 20KiB/sec
  • I updated the Linode issue with this information
• I'm going to try to switch the kernel to the latest upstream (5.0.8) instead of Linode's latest x86_64
  • Nope, still 20KiB/sec

2019-04-21

• Deploy Solr 4.10.4 on CGSpace (linode18)
• Deploy Tomcat 7.0.94 on CGSpace
• Deploy dspace-statistics-api v1.0.0 on CGSpace
• Linode support replicated the results I had from the network speed testing and said they don't know why it's so slow
  • They offered to live migrate the instance to another host to see if that helps

2019-04-22

• Abenet pointed out an item that doesn't have an Altmetric score on CGSpace, but has a score of 343 in the CGSpace Altmetric dashboard
  • I tweeted the Handle to see if it will pick it up...
  • Like clockwork, after fifteen minutes there was a donut showing on CGSpace
• I want to get rid of this annoying warning that is constantly in our DSpace logs:

2019-04-08 19:02:31,770 WARN  org.dspace.xoai.services.impl.xoai.DSpaceRepositoryConfiguration @ { OAI 2.0 :: DSpace } Not able to retrieve the dspace.oai.url property from oai.cfg. Falling back to request address

• Apparently it happens once per request, which can be at least 1,500 times per day according to the DSpace logs on CGSpace (linode18):

$ grep -c 'Falling back to request address' dspace.log.2019-04-20
dspace.log.2019-04-20:1515

• I will fix it in dspace/config/modules/oai.cfg
• Linode says that it is likely that the host CGSpace (linode18) is on is showing signs of hardware failure and they recommended that I migrate the VM to a new host
  • I told them to migrate it at 04:00:00AM Frankfurt time, when nobody in East Africa, Europe, or South America should be using the server

2019-04-23

• One blog post says that there is no overprovisioning in Azure:

In Azure, with one exception being the A0, there is no overprovisioning… Each physical cores is only supporting one virtual core.

• Perhaps that's why the Azure pricing is so expensive!
• Add a privacy page to CGSpace
  • The work was mostly similar to the About page at /page/about, but in addition to adding i18n strings etc, I had to add the logic for the trail to dspace-xmlui-mirage2/src/main/webapp/xsl/preprocess/general.xsl

2019-04-24

• Linode migrated CGSpace (linode18) to a new host, but I am still getting poor performance when copying data to DSpace Test (linode19)
  • I asked them if we can migrate DSpace Test to a new host
  • They migrated DSpace Test to a new host and the rsync speed from Frankfurt was still capped at 20KiB/sec...
  • I booted DSpace Test to a rescue CD and tried the rsync from CGSpace there too, but it was still capped at 20KiB/sec...
  • I copied the 18GB statistics-2018 Solr core from Frankfurt to a Linode in London at 15MiB/sec, then from the London one to DSpace Test in Fremont at 15MiB/sec... so WTF us up with Frankfurt→Fremont?!
• Finally upload the 218 IITA items from March to CGSpace
  • Abenet and I had to do a little bit more work to correct the metadata of one item that appeared to be a duplicate, but really just had the wrong DOI
• While I was uploading the IITA records I noticed that twenty of the records Sisay uploaded in 2018-09 had double Handles (dc.identifier.uri)
  • According to my notes in 2018-09 I had noticed this when he uploaded the records and told him to remove them, but he didn't...
  • I exported the IITA community as a CSV then used csvcut to extract the two URI columns and identify and fix the records:

$ csvcut -c id,dc.identifier.uri,'dc.identifier.uri[]' ~/Downloads/2019-04-24-IITA.csv > /tmp/iita.csv

• Carlos Tejo from the Land Portal had been emailing me this week to ask about the old REST API that Tsega was building in 2017
  • I told him we never finished it, and that he should try to use the /items/find-by-metadata-field endpoint, with the caveat that you need to match the language attribute exactly (ie "en", "en_US", null, etc)
  • I asked him how many terms they are interested in, as we could probably make it easier by normalizing the language attributes of these fields (it would help us anyways)
  • He says he's getting HTTP 401 errors when trying to search for CPWF subject terms, which I can reproduce:

$ curl -f -H "accept: application/json" -H "Content-Type: application/json" -X POST "https://dspacetest.cgiar.org/rest/items/find-by-metadata-field" -d '{"key":"cg.subject.cpwf", "value":"WATER MANAGEMENT","language": "en_US"}'
curl: (22) The requested URL returned error: 401

• Note that curl only shows the HTTP 401 error if you use -f (fail), and only then if you don't include -s
  • I see there are about 1,000 items using CPWF subject "WATER MANAGEMENT" in the database, so there should definitely be results
  • The breakdown of text_lang fields used in those items is 942:

dspace=# SELECT COUNT(text_value) FROM metadatavalue WHERE resource_type_id=2 AND metadata_field_id=208 AND text_value='WATER MANAGEMENT' AND text_lang='en_US';
 count 
-------
   376
(1 row)

dspace=# SELECT COUNT(text_value) FROM metadatavalue WHERE resource_type_id=2 AND metadata_field_id=208 AND text_value='WATER MANAGEMENT' AND text_lang='';
 count 
-------
   149
(1 row)

dspace=# SELECT COUNT(text_value) FROM metadatavalue WHERE resource_type_id=2 AND metadata_field_id=208 AND text_value='WATER MANAGEMENT' AND text_lang IS NULL;
 count 
-------
   417
(1 row)

• I see that the HTTP 401 issue seems to be a bug due to an item that the user doesn't have permission to access... from the DSpace log:

2019-04-24 08:11:51,129 INFO  org.dspace.rest.ItemsResource @ Looking for item with metadata(key=cg.subject.cpwf,value=WATER MANAGEMENT, language=en_US).
2019-04-24 08:11:51,231 INFO  org.dspace.usage.LoggerUsageEventListener @ anonymous::view_item:handle=10568/72448
2019-04-24 08:11:51,238 INFO  org.dspace.usage.LoggerUsageEventListener @ anonymous::view_item:handle=10568/72491
2019-04-24 08:11:51,243 INFO  org.dspace.usage.LoggerUsageEventListener @ anonymous::view_item:handle=10568/75703
2019-04-24 08:11:51,252 ERROR org.dspace.rest.ItemsResource @ User(anonymous) has not permission to read item!

• Nevertheless, if I request using the null language I get 1020 results, plus 179 for a blank language attribute:

$ curl -s -H "Content-Type: application/json" -X POST "https://dspacetest.cgiar.org/rest/items/find-by-metadata-field" -d '{"key":"cg.subject.cpwf", "value":"WATER MANAGEMENT","language": null}' | jq length
1020
$ curl -s -H "Content-Type: application/json" -X POST "https://dspacetest.cgiar.org/rest/items/find-by-metadata-field" -d '{"key":"cg.subject.cpwf", "value":"WATER MANAGEMENT","language": ""}' | jq length
179

• This is weird because I see 942–1156 items with "WATER MANAGEMENT" (depending on wildcard matching for errors in subject spelling):

dspace=# SELECT COUNT(text_value) FROM metadatavalue WHERE resource_type_id=2 AND metadata_field_id=208 AND text_value='WATER MANAGEMENT';
 count 
-------
   942
(1 row)

dspace=# SELECT COUNT(text_value) FROM metadatavalue WHERE resource_type_id=2 AND metadata_field_id=208 AND text_value LIKE '%WATER MANAGEMENT%';
 count 
-------
  1156
(1 row)

• I sent a message to the dspace-tech mailing list to ask for help

2019-04-25

• Peter pointed out that we need to remove Delicious and Google+ from our social sharing links
  • Also, it would be nice if we could include the item title in the shared link
  • I created an issue on GitHub to track this (#419)
• I tested the REST API after logging in with my super admin account and I was able to get results for the problematic query:

$ curl -f -H "Content-Type: application/json" -X POST "https://dspacetest.cgiar.org/rest/login" -d '{"email":"example@me.com","password":"fuuuuu"}'
$ curl -f -H "Content-Type: application/json" -H "rest-dspace-token: b43d41a6-5ac1-455d-b49a-616b8debc25b" -X GET "https://dspacetest.cgiar.org/rest/status"
$ curl -f -H "rest-dspace-token: b43d41a6-5ac1-455d-b49a-616b8debc25b" -H "Content-Type: application/json" -X POST "https://dspacetest.cgiar.org/rest/items/find-by-metadata-field" -d '{"key":"cg.subject.cpwf", "value":"WATER MANAGEMENT","language": "en_US"}'

• I created a normal user for Carlos to try as an unprivileged user:

$ dspace user --add --givenname Carlos --surname Tejo --email blah@blah.com --password 'ddmmdd'

• But still I get the HTTP 401 and I have no idea which item is causing it
• I enabled more verbose logging in ItemsResource.java and now I can at least see the item ID that causes the failure...
  • The item is not even in the archive, but somehow it is discoverable

dspace=# SELECT * FROM item WHERE item_id=74648;
 item_id | submitter_id | in_archive | withdrawn |       last_modified        | owning_collection | discoverable
---------+--------------+------------+-----------+----------------------------+-------------------+--------------
   74648 |          113 | f          | f         | 2016-03-30 09:00:52.131+00 |                   | t
(1 row)

• I tried to delete the item in the web interface, and it seems successful, but I can still access the item in the admin interface, and nothing changes in PostgreSQL
• Meet with CodeObia to see progress on AReS version 2
• Marissa Van Epp asked me to add a few new metadata values to their Phase II Project Tags field (cg.identifier.ccafsprojectpii)
  • I created a pull request for it and will do it the next time I run updates on CGSpace
• Communicate with Carlos Tejo from the Land Portal about the /items/find-by-metadata-value endpoint
• Run all system updates on DSpace Test (linode19) and reboot it

2019-04-26

• Export a list of authors for Peter to look through:

dspace=# \copy (select distinct text_value, count(*) as count from metadatavalue where metadata_field_id = (select metadata_field_id from metadatafieldregistry where element = 'contributor' and qualifier = 'author') AND resource_type_id = 2 group by text_value order by count desc) to /tmp/2019-04-26-all-authors.csv with csv header;
COPY 65752

2019-04-28

• Still trying to figure out the issue with the items that cause the REST API's /items/find-by-metadata-value endpoint to throw an exception
  • I made the item private in the UI and then I see in the UI and PostgreSQL that it is no longer discoverable:

dspace=# SELECT * FROM item WHERE item_id=74648;
 item_id | submitter_id | in_archive | withdrawn |       last_modified        | owning_collection | discoverable 
---------+--------------+------------+-----------+----------------------------+-------------------+--------------
   74648 |          113 | f          | f         | 2019-04-28 08:48:52.114-07 |                   | f
(1 row)

• And I tried the curl command from above again, but I still get the HTTP 401 and and the same error in the DSpace log:

2019-04-28 08:53:07,170 ERROR org.dspace.rest.ItemsResource @ User(anonymous) has not permission to read item(id=74648)!

• I even tried to "expunge" the item using an action in CSV, and it said "EXPUNGED!" but the item is still there...

2019-04-30

• Send mail to the dspace-tech mailing list to ask about the item expunge issue
• Delete and re-create Podman container for dspacedb after pulling a new PostgreSQL container:

$ podman run --name dspacedb -v dspacedb_data:/var/lib/postgresql/data -e POSTGRES_PASSWORD=postgres -p 5432:5432 -d postgres:9.6-alpine

• Carlos from LandPortal asked if I could export CGSpace in a machine-readable format so I think I'll try to do a CSV
  • In order to make it easier for him to understand the CSV I will normalize the text languages (minus the provenance field) on my local development instance before exporting:

dspace=# SELECT DISTINCT text_lang, count(*) FROM metadatavalue WHERE resource_type_id = 2 AND metadata_field_id != 28 GROUP BY text_lang;
 text_lang |  count
-----------+---------
           |  358647
 *         |      11
 E.        |       1
 en        |    1635
 en_US     |  602312
 es        |      12
 es_ES     |       2
 ethnob    |       1
 fr        |       2
 spa       |       2
           | 1074345
(11 rows)
dspace=# UPDATE metadatavalue SET text_lang='en_US' WHERE resource_type_id=2 AND metadata_field_id != 28 AND text_lang IN ('ethnob', 'en', '*', 'E.', '');
UPDATE 360295
dspace=# UPDATE metadatavalue SET text_lang='en_US' WHERE resource_type_id=2 AND metadata_field_id != 28 AND text_lang IS NULL;
UPDATE 1074345
dspace=# UPDATE metadatavalue SET text_lang='es_ES' WHERE resource_type_id=2 AND metadata_field_id != 28 AND text_lang IN ('es', 'spa');
UPDATE 14

• Then I exported the whole repository as CSV, imported it into OpenRefine, removed a few unneeded columns, exported it, zipped it down to 36MB, and emailed a link to Carlos
• In other news, while I was looking through the CSV in OpenRefine I saw lots of weird values in some fields... we should check, for example:
  • issue dates
  • items missing handles
  • authorship types