Fix OutOfMemoryError

✅ Solution

OutOfMemoryError in Elasticsearch usually indicates the JVM has run out of heap space, often due to large operations on vectors during indexing or querying. Increase the JVM heap size by modifying the `ES_JAVA_OPTS` environment variable (e.g., `-Xms4g -Xmx4g`) to allocate more memory. Additionally, optimize vector operations by reducing batch sizes or using more efficient indexing strategies.