/**
     * Creates a simple circuit breaker with default settings
     *
     * @param name the circuit breaker name
     */
    public SimpleCircuitBreaker(String name) {
        this(name, 5, 3, 30000L); // 5 failures, 3 successes, 30 second timeout
    }

    /**
     * Creates a simple circuit breaker
     *
     * @param name the circuit breaker name

    /**
     * Create a circuit breaker with default settings
     *
     * @param name circuit breaker name for logging
     */
    public SmbCircuitBreaker(String name) {
        this(name, 5, 3, 60000, 3, false, false, 100);
    }

    /**
     * Create a circuit breaker with custom settings
     *
     * @param name circuit breaker name for logging

            // Log circuit breaker rejection
            auditLogger.logSecurityViolation("Circuit breaker open for SMB connection",
                    java.util.Map.of("address", address.getHostAddress(), "port", String.valueOf(port)));
            throw new IOException("Connection rejected by circuit breaker: " + e.getMessage(), e);
        } catch (RuntimeException e) {

			 <!--
			 "node.name":"search_engine",
			 "discovery.seed_hosts":"search_engine",
			 "cluster.initial_cluster_manager_nodes":"search_engine",
			 "node.roles":"cluster_manager,data,ingest,ml",
			 -->
			 "indices.breaker.total.limit":"100%",
			 "action.auto_create_index":"-*"}
		</property>
		<!-- Dictionaries -->
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"mapping.txt"</arg>
		</postConstruct>

- Connection pooling with limits
- Background temp file deletion via `FileUtil.deleteInBackground()`

**Fault Tolerance**:
- `FaultTolerantClient` wrapper (retry, circuit breaker)
- Graceful degradation (e.g., robots.txt parsing continues on errors)

---

## Key Components

### Crawler (`Crawler.java`)

Main orchestrator for crawling operations.

**Key Methods**:
```java

suggest.update.contents.limit.num=10000
# Maximum document size for suggestion update.
suggest.update.contents.limit.doc.size=50000
# Scroll size for suggestion source reader.
suggest.source.reader.scroll.size=1
# Cache size for popular word suggestion.
suggest.popular.word.cache.size=1000
# Cache expiration (seconds) for popular word suggestion.
suggest.popular.word.cache.expire=60

     * comment: Tie breaker value for dismax queries.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getQueryDismaxTieBreaker();

    /**
     * Get the value for the key 'query.dismax.tie_breaker' as {@link java.math.BigDecimal}. <br>
     * The value is, e.g. 0.1 <br>
     * comment: Tie breaker value for dismax queries.

        if (readers.hasNext()) {
            final ImageReader reader = readers.next();
            try {
                reader.setInput(input);
                final ImageReadParam param = reader.getDefaultReadParam();
                final int width = reader.getWidth(0);
                final int height = reader.getHeight(0);
                if (width <= 0 || height <= 0) {

import java.io.BufferedReader;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.Reader;
import java.util.Hashtable;

import jcifs.smb1.Config;
import jcifs.smb1.smb1.SmbFileInputStream;
import jcifs.smb1.util.LogStream;

/**
 * Lmhosts file handling for NetBIOS name resolution.
 */

            throw new SuggestIndexException("Failed to index from query_string.", e);
        }
    }

    /**
     * Indexes documents from a query log reader asynchronously.
     * @param queryLogReader The query log reader.
     * @param docPerReq The number of documents to process per request.
     * @param requestInterval The interval between requests.