if(hosts.size() == 0)
throw new RuntimeException("no hosts defined");
int id = connectionCounter.incrementAndGet();
indexWriter = new StreamingUpdateSolrServer("http://"+hosts.get(id % hosts.size())+":" + port + "/solandra/~wikassandra", 512, 8);
indexWriter.setAllowCompression(true);
clientPool.set(indexWriter);
}