log4j, [2013-02-04T15:35:47.183] DEBUG: org.elasticsearch.action.search.type: [Gyrich, Henry Peter] [logstash-2012.12.30][4], node[Cjp8y-8hRmmExrdnkLzA4Q], [P], s[STARTED]: Failed to execute [org.elasticsearch.action.search.SearchRequest@5ecc1f09]
org.elasticsearch.search.SearchParseException: [logstash-2012.12.30][4]: query[filtered(@type:mytype)->+cache(@timestamp:[2012-12-25T07:19:30Z TO 2012-12-31T19:30:29Z])],from[0],size[46]: Parse Failure [Failed to parse source [{
  "size": 46,
  "query": {
    "filtered": {
      "query": {
        "query_string": {
          "default_operator": "OR",
          "default_field": "_all",
          "query": "@type:mytype"
        }
      },
      "filter": {
        "and": {
          "filters": [
            {
              "range": {
                "@timestamp": {
                  "from": "2012-12-25T07:19:30Z",
                  "to": "2012-12-31T19:30:29Z"
                }
              }
            }
          ]
        }
      }
    }
  },
  "from": 0,
  "sort": {
    "@timestamp": {
      "order": "desc"
    }
  }
}]]
        at org.elasticsearch.search.SearchService.parseSource(SearchService.java:566)
        at org.elasticsearch.search.SearchService.createContext(SearchService.java:481)
        at org.elasticsearch.search.SearchService.createContext(SearchService.java:466)
        at org.elasticsearch.search.SearchService.executeQueryPhase(SearchService.java:236)
        at org.elasticsearch.search.action.SearchServiceTransportAction.sendExecuteQuery(SearchServiceTransportAction.java:141)
        at org.elasticsearch.action.search.type.TransportSearchQueryThenFetchAction$AsyncAction.sendExecuteFirstPhase(TransportSearchQueryThenFetchAction.java:80)
        at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:205)
        at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction.performFirstPhase(TransportSearchTypeAction.java:192)
        at org.elasticsearch.action.search.type.TransportSearchTypeAction$BaseAsyncAction$2.run(TransportSearchTypeAction.java:178)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
        at java.lang.Thread.run(Thread.java:722)
Caused by: org.elasticsearch.search.SearchParseException: [logstash-2012.12.30][4]: query[filtered(@type:mytype)->+cache(@timestamp:[2012-12-25T07:19:30Z TO 2012-12-31T19:30:29Z])],from[0],size[46]: Parse Failure [No mapping found for [@timestamp] in order to sort on]
        at org.elasticsearch.search.sort.SortParseElement.addSortField(SortParseElement.java:164)
        at org.elasticsearch.search.sort.SortParseElement.addCompoundSortField(SortParseElement.java:138)
        at org.elasticsearch.search.sort.SortParseElement.parse(SortParseElement.java:76)
        at org.elasticsearch.search.SearchService.parseSource(SearchService.java:554)
        ... 11 more