Logging

Log4j2 & Slow Query Log

💡 Solr, ke, LOGS, EK, "FLIGHT, RECORDER", jaise, HAIN — KUCH, bhi, GALAT, ho, TO, LOGS, mein, EXACT, KYA, HUA, tha, WO, mil, jaata hai.

Solr, Log4j2, use, karta hai, LOGGING, ke, liye — "log4j2.xml" FILE, se, LOG, LEVELS, (INFO, WARN, ERROR, DEBUG) aur, DIFFERENT, COMPONENTS, ke, liye, ALAG, LOGGERS, CONFIGURE, kiye, ja, sakte, HAIN.

Solr, "slow, query, log", mein, WO, QUERIES, LOG, karta hai, JO, THRESHOLD, se, ZYAADA, TIME, LETI, HAIN — YE, PERFORMANCE, PROBLEMS, ko, DEBUG, karne, ka, FIRST, STEP, hota hai.

<Logger name="org.apache.solr.core" level="WARN"/>

📜

Solr, ke, LOGS, EK, "FLIGHT, RECORDER", jaise, HAIN — KUCH, bhi, GALAT, ho, TO, LOGS, mein, EXACT, KYA, HUA, tha, WO, mil, jaata hai.

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⚡ Quick Recap

Solr Log4j2 use karta hai logging ke liye
log4j2.xml se log levels aur loggers configure hote hain
Slow query log performance problems debug karne ka first step hai

On this page (2 subtopics)

<Logger name="org.apache.solr.core" level="WARN"/>

Solr, "slow, query, log" (default, threshold, 2, SECONDS) mein, WO, QUERIES, LOG, karta hai, JO, THRESHOLD, se, ZYAADA, TIME, LETI, HAIN — YE, PERFORMANCE, PROBLEMS, ko, DEBUG, karne, ka, FIRST, STEP, hota hai.

💡Tip: solrconfig.xml, mein, "slowQueryThresholdMillis" ADJUST, kiya, ja, sakta hai — HIGH-TRAFFIC, systems, mein, THRESHOLD, ko, TUNE, karna, USEFUL, hota hai.

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Logging

Solr's Logging Framework

Slow Query Logging