[CWB] Failure of offline-freqlists.php

[mansur]

Hello!

Stefan, you can try to increase temporarily your swap just to check if this
issue is RAM related. For example, to set additional 10Gb of swap use:
dd if=/dev/zero of=/home/USER/swap bs=1G count=10
mkswap /home/USER/swap
swapon /home/USER/swap

Best,
Mansur


Am Mo., 3. Dez. 2018 um 07:25 Uhr schrieb Hardie, Andrew <
a.hardie at lancaster.ac.uk>:

> I'm afraid it is next to impossible to diagnose this at a distance. The
> most likely culprit is the OOM killer, if you're on Linux. There might be
> something in an error log (or via dmesg?)
>
> However, there is a decent chance it will just tell you that the system
> was out of memory. Why this would be, I don't know. Corpus size is not the
> issue, rather, the number of distinct type tuples is (where a type tuple is
> every distinct combination of word form plus forms of all the other
> attributes at any given corpus position....)
>
> best
>
> Andrew.
>
> -----Original Message-----
> From: cwb-bounces at sslmit.unibo.it <cwb-bounces at sslmit.unibo.it> On Behalf
> Of Stefan Fischer
> Sent: 28 November 2018 18:17
> To: cwb at sslmit.unibo.it
> Subject: [CWB] Failure of offline-freqlists.php
>
> Hello everyone,
>
> I would like to import a corpus (300M words) into CQPweb. The corpus is
> already indexed in CWB and the import into CQPweb worked well. As the
> corpus is rather large, I ran "php offline-freqlists.php my_corpus" in the
> terminal. Unfortunately, the script fails after several hours and I get the
> following error message:
>
> ----
>
> cwb-scan-corpus error!
> Killed
>
>
>
> PHP debugging backtrace
> =======================
> array(2) {
>   [1]=>
>   array(4) {
>     ["file"]=>
>     string(42) "/var/www/html/cqpweb/lib/freqtable.inc.php"
>     ["line"]=>
>     int(99)
>     ["function"]=>
>     string(17) "exiterror_general"
>     ["args"]=>
>     array(1) {
>       [0]=>
>       &string(29) "cwb-scan-corpus error!
> Killed"
>     }
>   }
>   [2]=>
>   array(4) {
>     ["file"]=>
>     string(46) "/var/www/html/cqpweb/bin/offline-freqlists.php"
>     ["line"]=>
>     int(136)
>     ["function"]=>
>     string(22) "corpus_make_freqtables"
>     ["args"]=>
>     array(1) {
>       [0]=>
>       &string(10) "test_corpus"
>     }
>   }
> }
>
> ----
>
> I have already imported corpora larger than this one. So I guess corpus
> size is not the issue. What else could cause a failure of cwb-scan-corpus?
>
> Best,
> Stefan
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