goiri commented on a change in pull request #1954: HDFS-15217 Add more
information to longest write/read lock held log
URL: https://github.com/apache/hadoop/pull/1954#discussion_r407099108
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File path:
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystemLock.java
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@@ -253,10 +294,12 @@ public void writeUnlock(String opName, boolean
suppressWriteLockReport) {
LogAction logAction = LogThrottlingHelper.DO_NOT_LOG;
if (needReport &&
writeLockIntervalMs >= this.writeLockReportingThresholdMs) {
- if (longestWriteLockHeldInfo.getIntervalMs() < writeLockIntervalMs) {
+ if (longestWriteLockHeldInfo.getIntervalMs() <= writeLockIntervalMs) {
+ String lockReportInfo = lockReportInfoSupplier != null ? " (" +
+ lockReportInfoSupplier.get() + ")" : "";
longestWriteLockHeldInfo =
new LockHeldInfo(currentTimeMs, writeLockIntervalMs,
- StringUtils.getStackTrace(Thread.currentThread()));
+ StringUtils.getStackTrace(Thread.currentThread()), opName,
lockReportInfo);
Review comment:
Extract the trace at least.
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