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Author SHA1 Message Date
Alan Orth
4ede966dbb
indexer.py: Fix logic error in SQL insert 
This was inserting correctly on the first run, but subsequent runs
were inserting into the incorrect column on conflict. This made it
seem like there were downloads for items where there were none.
 2018-10-05 00:16:24 +03:00
Alan Orth
3580473a6d
README.md: Add TODO about JSON in PostgreSQL 2018-10-03 20:08:18 +03:00
Alan Orth
071c24535f
README.md: Add TODO about API versions 2018-10-03 11:12:18 +03:00
Alan Orth
4291aecac4
README.md: Formatting 2018-09-27 12:45:15 +03:00
Alan Orth
46bf537e88
CHANGELOG.md: Add note about cursor change 2018-09-27 11:08:42 +03:00
Alan Orth
eaca5354d3
app.py: Iterate directly on cursor 
We don't need to create an intermediate variable for the results of
the SQL query because psycopg2's cursor is iterable.

See: http://initd.org/psycopg/docs/cursor.html
 2018-09-27 11:03:44 +03:00
Alan Orth
4600288ee4
CHANGELOG.md: Add note about ujson 2018-09-27 09:53:42 +03:00
Alan Orth
8179563378
requirements.txt: pip freeze 2018-09-27 09:53:16 +03:00
Alan Orth
b14c3eef4d
indexer.py: Use ujson instead of json 
Falcon optionally makes use of the ujson library to speed up media
(de)serialization, error serialization, and query string parsing.

See: https://falcon.readthedocs.io/en/stable/user/install.html
 2018-09-27 09:51:40 +03:00
Alan Orth
71a789b13f
CHANGELOG.md. Add unreleased changes 2018-09-27 09:30:48 +03:00
Alan Orth
c68ddacaa4
README.md: Add note about systemd units for deployment 2018-09-27 09:26:47 +03:00
Alan Orth
9c9e79769e
README.md: Add TODO 2018-09-27 09:17:45 +03:00
Alan Orth
2ad5ade556
README.md: Improve introduction 2018-09-27 09:12:52 +03:00
Alan Orth
7412a09670
README.md: Improve introduction 2018-09-27 09:07:28 +03:00
Alan Orth
bb744a00b8
README.md: Add requirements 2018-09-27 08:57:27 +03:00
Alan Orth
7499b89d99
CHANGELOG.md: Move unreleased changes to v0.4.1 2018-09-27 08:15:54 +03:00
Alan Orth
2c1e4952b1
indexer.py: Remove comment 
I had left this there so I could remember how to get the number of
facets, but I don't need it anymore.
 2018-09-26 23:27:48 +03:00
Alan Orth
379f202c3f
CHANGELOG.md: Add unreleased changes 2018-09-26 23:26:48 +03:00
Alan Orth
560fa6056d
README.md: Remove batch inserts from TODO 2018-09-26 23:25:35 +03:00
Alan Orth
385a34e5d0
indexer.py: Use psycopg2's execute_values to batch inserts 
Batch inserts are much faster than a series of individual inserts
because they drastically reduce the overhead caused by round-trip
communication with the server. My tests in development confirm:

  - cursor.execute(): 19 seconds
  - execute_values(): 14 seconds

I'm currently only working with 4,500 rows, but I will experiment
with larger data sets, as well as larger batches. For example, on
the PostgreSQL mailing list a user reports doing 10,000 rows with
a page size of 100.

See: http://initd.org/psycopg/docs/extras.html#psycopg2.extras.execute_values
See: https://github.com/psycopg/psycopg2/issues/491#issuecomment-276551038
 2018-09-26 23:10:29 +03:00
Alan Orth
d0ea62d2bd
database.py: Use one line for psycopg2 imports 2018-09-26 22:23:24 +03:00
Alan Orth
366ae25b8e
README.md: Add link to psycopg2 issue about batch inserts 2018-09-26 22:23:08 +03:00
Alan Orth
0f3054ae03
README.md: Add TODO about batch DB inserts 2018-09-26 16:31:13 +03:00
Alan Orth
6bf34235d4
CHANGELOG.md: Move unreleased changes to version 0.4.0 2018-09-26 02:51:27 +03:00
Alan Orth
e604d8ca81
indexer.py: Major refactor 
Basically Solr's numFound has nothing to do with the actual number
of distinct facets that are returned. You need to use Solr's stats
component to get the number of distinct facets, aka countDistinct.
This is apparently deprecated in newer Solr versions, but we're on
version 4.10 and it works there.

Also, I realized that there is no need to return facets for items
without any views or downloads. Using facet.mincount=1 reduces the
result set size and also means we can store less data in the data-
base. The API returns HTTP 404 Not Found if an item is not in the
database anyways.

I can't figure it out exactly, but there is some weird issue with
Solr's facet results when you don't use facet.mincount=1. For some
reason you get tons of results with an id that doesn't even exist
in the document database, let alone as an actual DSpace item!

See: https://lucene.apache.org/solr/guide/6_6/the-stats-component.html
 2018-09-26 02:41:10 +03:00
Alan Orth
fc35b816f3
CHANGELOG.md: Add unreleased changes 2018-09-25 23:09:44 +03:00
Alan Orth
9e6a2f7559
contrib/dspace-statistics-indexer.timer: Fix syntax 
You can test OnCalendar strings using systemd-analyze calendar, eg:

    # systemd-analyze calendar '*-*-* 06:00:00,18:00:00'
    Failed to parse calendar specification '*-*-* 06:00:00,18:00:00':
    Invalid argument
    # systemd-analyze calendar '*-*-* 06,18:00:00'
    Normalized form: *-*-* 06,18:00:00
        Next elapse: Wed 2018-09-26 06:00:00 EEST
           (in UTC): Wed 2018-09-26 03:00:00 UTC
           From now: 6h left
 2018-09-25 23:07:03 +03:00
Alan Orth
46cfc3ffbc
CHANGELOG.md: Release version 0.3.2 2018-09-25 13:14:08 +03:00
Alan Orth
2850035a4c
Return HTTP 404 when an item id is not found 2018-09-25 13:12:53 +03:00
Alan Orth
c0b550109a
README.md: Improve wording 2018-09-25 12:24:52 +03:00
Alan Orth
bfceffd84d
indexer.py: Improve inline documentation 2018-09-25 12:23:31 +03:00
Alan Orth
d0552f5047
CHANGELOG.md: Move unreleased changes to version 0.3.1 2018-09-25 12:18:26 +03:00
Alan Orth
c3a0bf7f44
CHANGELOG.md: Add Python 3.7 to Travis CI config 2018-09-25 12:17:49 +03:00
Alan Orth
6e47e9c9ee
.travis.yml: Add Python 3.7 2018-09-25 12:17:20 +03:00
Alan Orth
cd90d618d6
CHANGELOG.md: Fix error in old release 2018-09-25 12:17:01 +03:00
Alan Orth
280d211d56
CHANGELOG.md: Add note about kazoo 2.5.0 2018-09-25 12:12:10 +03:00
Alan Orth
806d63137f
requirements.txt: Use kazoo 2.5.0 
SolrClient 0.2.1 currently depends on kazoo 2.2.1, but there is an
issue with Python 3.7 in kazoo <= 2.5.0. Kazoo 2.5.0 fixes the is-
sue with Python 3.7, and for my limited usage of SolrClient it se-
ems to work fine.

See: https://github.com/moonlitesolutions/SolrClient/issues/79
 2018-09-25 12:08:28 +03:00
Alan Orth
f7c7390e4f
README.md: Add note about Python 3.7 2018-09-25 12:07:58 +03:00
Alan Orth
702724e8a4
CHANGELOG.md: Move unreleased changes to version 0.3.0 2018-09-25 11:38:36 +03:00
Alan Orth
36818d03ef
CHANGELOG.md: Update unreleased changes 2018-09-25 11:37:56 +03:00
Alan Orth
4cf8656b35
Change / route to /items 
I think it's more obvious if the "all items" route is plural. Also,
this will allow me to eventually put documentation at the root.
 2018-09-25 11:34:07 +03:00
Alan Orth
f30a464cd1
README.md: Add notes about API endpoints 2018-09-25 11:28:12 +03:00
Alan Orth
93ae12e313
README.md: Update introduction 2018-09-25 11:15:12 +03:00
Alan Orth
dc978e9333
CHANGELOG.md: Add note about requirements.txt and Travis CI 2018-09-25 11:09:02 +03:00
Alan Orth
295436fea0
Add .travis.yml 2018-09-25 11:08:01 +03:00
Alan Orth
46a1476ab0
Add requirements.txt 
Generated with `pip freeze`. This is so I can pin the versions of
packages that I've tested with as well as to allow Travis to test
whether the project runs on various Pythons and to let GitHub in-
form me of vulnerabilities in some libraries.
 2018-09-25 11:02:50 +03:00
Alan Orth
87dbb6c4df
CHANGELOG.md: Release version 0.2.1 2018-09-25 02:21:44 +03:00
Alan Orth
3160c44566
app.py: Remove comment 
This comment was added when I first began the application and the
testing status is documented in the README now.
 2018-09-25 02:20:51 +03:00
Alan Orth
4b72f626d9
Update string substitution format 
Instead of doing numbered strings I will just depend on the order,
at least to be consistent.
 2018-09-25 02:19:29 +03:00
Alan Orth
2d3b7620e3
CHANGELOG.md: Add note about psycopg2.extras.DictCursor 2018-09-25 02:08:54 +03:00