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program_me32
·
java.lang.OutOfMemoryError: GC overhead limit exceeded — what to do?
Hello everyone! I am a beginner Java developer writing a small application for log processing. The program reads a large text file (about 500 MB), splits lines into words, and collects statistics — how many times each word occurs. I use HashMap.
Everything worked fine on small files, but when I ran it on real data, after a couple of minutes an error occurred:
Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit exceeded
Here is the simplified code:
```java
public class LogAnalyzer {
public static void main(String[] args) throws IOException {
Map wordCount = new HashMap<>();
BufferedReader reader = new BufferedReader(new FileReader("large_log.txt"));
String line;
while ((line = reader.readLine()) != null) {
String[] words = line.split("\\s+");
for (String word : words) {
wordCount.merge(word, 1, Integer::sum);
}
}
}
}
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