批量删除es索引

发现elasticsearch集群的状态是red，unassign的分片数很多，看了下都是些旧的日期的索引（应该是定时任务删除失败导致的）。
curl -XGET ip:port/_cat/shards | grep UNASSIGNED
数量有几百个，写个脚本处理下，先恢复成green。red状态好像会影响索引创建和数据迁移
先把需要删除的索引导出到文件

curl -XGET ip:port/_cat/shards | grep UNASSIGNED >> needDelIndex.txt

确认下要删除的索引列表。没问题就执行下面删除shell（es的ip和端口需要修改下）

#!/bin/bash
echo "$1"
esUrl=${esip}:${esport}

indexfile=needDelIndex.txt
#cp -f /dev/null ${indexfile}
#curl -XGET ip:port/_cat/shards | grep UNASSIGNED >> needDelIndex.txt
if [ ! -f ./${indexfile} ]; then
    echo $indexfile not exists
    exit 0
fi

logfile=esindex_del.`date +"%m-%d"`.log
cp -f /dev/null ${logfile}

lastIndexName="test"

for item in `cat ${indexfile} | awk  '{print $1}'`
do
    if [ "$item" = "error" ]
    then
        continue
    fi

    if [ "$item" != "$lastIndexName" ]
    then
        curl -XDELETE ${esUrl}/${item} >> ${logfile}
        echo ---------${item} `date` >> ${logfile}
        sleep 5
    fi
    lastIndexName=${item}

done

因为我们的索引是按天创建的，索引名前缀是yyyy-MM-dd, 保留一段时间后需要批量删除。shell的第一个参数为yyyy-MM-dd，将删除该天及以前的旧索引

#!/bin/bash

esUrl=${esip}:${esport}
echo "$1"
if [ $# -ge 1 ]
then
    deleteDate=$1
else
    echo "please inpust detete esindex's date(yyyy-MM-dd)"
    exit 0
fi

indexfile=esindex.info
cp -f /dev/null ${indexfile}
curl  '${esUrl}/_cat/indices' >> ${indexfile}

logfile=esindex_del.`date +"%m-%d"`.out
cp -f /dev/null ${logfile}

for item in `cat ${indexfile} | awk  '{print $3}'`
do
    if [ "$item" = "error" ]
    then
        continue
    fi

    parameter=${esUrl}/${item}
    indexdate=${item:0:10}
    if [ "$indexdate" = "$deleteDate" ]
    then
        curl -XDELETE ${parameter} >> ${logfile}
        echo ---------${item}  >> ${logfile}
        sleep 5
    elif [[ "$indexdate" < "$deleteDate" ]]
    then
        curl -XDELETE ${parameter} >> ${logfile}
        echo ---------${item}  >> ${logfile}
        sleep 5
    fi
done