Elastic search CRUD function only working in debug mode

2 issues are there:

1.Elastic search CRUD function only working in debug mode, not in normal
mode.(while running in eclipse debug mode)

Or else if we put Thread .sleep(5000),then also it is working(without debug
mode) but impact the performance. .

2.Allowing only to add upto 10 records.If try to add more than that ,it is
overriding the existing records.

other details used in application:

-Elasticsearch client is spring autowired (@autowired Client)
-Using elasticsearch node in spring config file as -

elasticsearch:node-client id="client" local="true">

sample query used for create and get:
client.prepareIndex(index, type, id).setSource(json).execute().actionGet();
Thread .sleep(5000)

GetResponse getResponse = client.prepareGet().execute().actionGet();

Pls let me know for any more details required.
Appreciate a lot,if get quick response .Many thanks in advance.

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