1
我們使用Lucene搜索擴展2.1.3（從其build.properties文件）在Ubuntu 12.04.3上運行MediaWiki 1.21。使用Lucene搜索擴展功能MediaWiki 1.21找不到文檔
我跟着指示爲Single Host Setup（使用螞蟻打造的罐子），並設置搜索框建議。事情似乎工作得很好。但是，新的文檔沒有與預先輸入的搜索功能相匹配。望着文件系統，我看到有在應用程序的指數各項目錄：
$ cd /usr/local/search/lucene-search-2/indexes
$ ls -l
total 24
drwxr-xr-x 10 root root 4096 Aug 20 2013 import
drwxr-xr-x 7 root root 4096 Apr 14 06:42 index
drwxr-xr-x 2 root root 4096 Apr 14 06:41 search
drwxr-xr-x 9 root root 4096 Aug 20 2013 snapshot
drwxr-xr-x 2 root root 4096 Aug 20 2013 status
drwxr-xr-x 8 root root 4096 Aug 20 2013 update
我們有一個運行了Lucene搜索構建命令，該命令轉儲維基數據庫作爲日常cron作業xml，然後修改導入和快照文件夾中的文件。我注意到，這項工作從搜索文件夾，其中包含符號鏈接更新文件夾中寫道：
$ ls -l search/
total 24
lrwxrwxrwx 1 root root 70 Feb 12 21:39 wikidb -> /usr/local/search/lucene-search-2/indexes/update/wikidb/20140212064727
lrwxrwxrwx 1 root root 73 Feb 12 21:39 wikidb.hl -> /usr/local/search/lucene-search-2/indexes/update/wikidb.hl/20140212064727
lrwxrwxrwx 1 root root 76 Apr 14 06:41 wikidb.links -> /usr/local/search/lucene-search-2/indexes/update/wikidb.links/20140414064150
lrwxrwxrwx 1 root root 77 Feb 12 21:39 wikidb.prefix -> /usr/local/search/lucene-search-2/indexes/update/wikidb.prefix/20140212064728
lrwxrwxrwx 1 root root 78 Feb 12 21:39 wikidb.related -> /usr/local/search/lucene-search-2/indexes/update/wikidb.related/20140212064713
lrwxrwxrwx 1 root root 76 Feb 12 21:39 wikidb.spell -> /usr/local/search/lucene-search-2/indexes/update/wikidb.spell/20140212064740
只有wikidb.links項電流。其他人幾個月大，這讓我想我錯過了我們日常cron任務的設置。這裏的工作：
#!/bin/sh
log=/var/log/lucene-search-2-cron.log
(
echo "Building wiki lucene-search indexes ..."
cd /usr/local/search/lucene-search-2
./build
echo "Stopping the lsearchd service..."
service lsearchd stop
# ok, so stopping the service apparently doesn't mean that the processes are gone, whack them manually
# See tip on using the "[x]yz" character class option so you don't need the additional "grep -v xyz":
# http://stackoverflow.com/questions/3510673/find-and-kill-a-process-in-one-line-using-bash-and-regex
echo "Killing any lucene-search processes that didn't terminate..."
kill -9 $(ps -ef | grep '[l]search' | awk '{print $2}')
echo "Starting the lsearchd service..."
service lsearchd start
) > $log 2>&1
而這裏的服務腳本/etc/init.d/lsearchd：
#!/bin/sh -e
### BEGIN INIT INFO
# Provides: lsearchd
# Required-Start: $syslog
# Required-Stop: $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 1
# Short-Description: Start the Lucene Search daemon
# Description: Provide a Lucene Search backend for MediaWiki. Copied by John Ericson from: http://ubuntuforums.org/showthread.php?t
=1476445
### END INIT INFO
# Set to install directory of lucense-search. For example: /usr/local/lucene-search-2.1.3
LUCENE_SEARCH_DIR="/usr/local/search/lucene-search-2"
# Set username for daemon to run as. Can also use syntax "username:groupname" to also specify group for daemon to run as. For example: me:me
RUN_AS_USER="lsearchd"
OPTIONS="-configfile $LUCENE_SEARCH_DIR/lsearch.conf"
test -x $LUCENE_SEARCH_DIR/lsearchd || exit 0
test -n "$RUN_AS_USER" && CHUID_ARG="--chuid $RUN_AS_USER" || CHUID_ARG=""
if [ -f "/etc/default/lsearchd" ] ; then
. /etc/default/lsearchd
fi
. /lib/lsb/init-functions
case "$1" in
start)
cd $LUCENE_SEARCH_DIR
log_begin_msg "Starting Lucene Search Daemon..."
start-stop-daemon --start --quiet --oknodo --chdir $LUCENE_SEARCH_DIR --background $CHUID_ARG --exec $LUCENE_SEARCH_DIR/lsearchd -- $OPT
IONS
log_end_msg $?
;;
stop)
log_begin_msg "Stopping Lucene Search Daemon..."
start-stop-daemon --stop --quiet --oknodo --retry 2 --chdir $LUCENE_SEARCH_DIR $CHUID_ARG --exec $LUCENE_SEARCH_DIR/lsearchd
log_end_msg $?
;;
restart)
$0 stop
sleep 1
$0 start
;;
reload|force-reload)
log_begin_msg "Reloading Lucene Search Daemon..."
start-stop-daemon --stop -signal 1 --chdir $LUCENE_SEARCH_DIR $CHUID_ARG --exec $LUCENE_SEARCH_DIR/lsearchd
log_end_msg $?
;;
status)
status_of_proc $LUCENE_SEARCH_DIR/lsearchd lsearchd && exit 0 || exit $?
;;
*)
log_success_msg "Usage: /etc/init.d/lsearchd {start|stop|restart|reload|force-reload|status}"
exit 1
esac
exit 0
更新＃1：
我刪除了更新目錄以root用戶身份從控制檯手動運行構建命令。正如預期的那樣，它只生成更新/ wikidb.links條目，其他文件夾都不存在。我回顧了我以前的設置筆記，並沒有看到任何不同，那麼這些文件夾是如何創建的，以及它們如何得到維護？
更新＃2：
我折回我的步驟，從最初的安裝，而且看不到任何東西我錯過了。所以有機會，我停止了服務，並從控制檯運行lsearchd，並且它創建了丟失的目錄！所以我終止了這個過程並再次嘗試：刪除索引文件夾，並以root身份從控制檯運行cron腳本。我確認，當以這種方式運行時，lsearchd DID不會創建丟失的目錄。當然，現在我記得在初始設置時，我已經從控制檯運行lsearchd，驗證它是否正在獲取客戶端對維基搜索輸入字段的查詢。這些是它用於查找的索引，這解釋了爲什麼不包含新文檔。
下面是該命令會時作爲服務運行，如：
$ ps -ef | grep [l]search
lsearchd 10192 1 0 14:02 ? 00:00:00 /bin/bash /usr/local/search/lucene-search-2/lsearchd -configfile /usr/local/search/lucene-search-2/lsearch.conf
lsearchd 10198 10192 0 14:02 ? 00:00:01 java -Djava.rmi.server.codebase=file:///usr/local/search/lucene-search-2/LuceneSearch.jar -Djava.rmi.server.hostname=AMWikiBugz -jar /usr/local/search/lucene-search-2/LuceneSearch.jar -configfile /usr/local/search/lucene-search-2/lsearch.conf
所以剩下的問題是：
爲什麼當作爲服務運行不lsearchd不能創建目錄？