#### Connection Timeouts
```java
// Increase timeout values
client.setConnectionTimeout(60000);  // 60 seconds
client.setSocketTimeout(120000);     // 120 seconds
```

#### Memory Issues
```java
// Reduce concurrent threads and batch sizes
crawler.crawlerContext.setNumOfThread(5);
crawler.crawlerContext.setMaxAccessCount(1000);
```

#### SSL/TLS Issues
```java
// Configure SSL settings

                    deferred.reject(new SuggesterException("Search failure. Failed shards num:" + searchResponse.getFailedShards()));
                } else {
                    deferred.resolve(createResponse(searchResponse));
                }
            }

            @Override
            public void onFailure(final Exception e) {
                deferred.reject(new SuggesterException(e.getMessage(), e));

                        new SuggestIndexResponse(numberOfSuggestDocs, numberOfInputDocs, errors, System.currentTimeMillis() - start));
            } catch (final Throwable t) {
                deferred.reject(t);
            } finally {
                queryLogReader.close();
            }
        });
        return deferred.promise();
    }

    /**
     * Indexes documents from an array of maps.

                    }
                }
            }).start();
        }

        startLatch.countDown();
        endLatch.await();

        // Verify all rules were added (can't check exact count due to thread-safe implementation)
        ResponseData responseData = new ResponseData();
        assertNotNull(threadSafeManager.getRule(responseData)); // At least one rule should match
    }

    /**