apache zookeeper - why pipeline content to command nc won't work? -


मैं zookeeper stat को nc ,

का उपयोग करके शेल से प्राप्त करने का प्रयास करता हूं एनसी लोकलहोस्ट 2181 को पहले कॉल करें, फिर इसमें टाइप करें: stat काम करता है।

जबकि echo "stat" | एनसी लोकलहोस्ट 2181 कुछ भी नहीं रिटर्न

क्यों?

मैंने पाया है कि - nc कमांड के लिए q परम के परिणामस्वरूप अपेक्षित उत्पादन हुआ।

गूंज "ruok" | Nc -q 2 लोकलहोस्ट 2181 उबंटू सिस्टम पर मेरे लिए काम किया ओपन बीएसडी सिस्टम पर -q के बजाय आपको -w का उपयोग करने की आवश्यकता हो सकती है।


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