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HDFS-10856. Update the comment of BPServiceActor$Scheduler#scheduleNextBlockReport. Contributed by Yiqun Lin. 

(cherry picked from commit f0876b8b60)
(cherry picked from commit 764cf431ca)
This commit is contained in:
Akira Ajisaka 2016-09-13 14:50:03 +09:00
parent b96e2cbd20
commit c06cf0f89c
1 changed files with 4 additions and 3 deletions
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7
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BPServiceActor.java
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@ -1138,10 +1138,11 @@ class BPServiceActor implements Runnable {
resetBlockReportTime = false;
} else {
/* say the last block report was at 8:20:14. The current report
* should have started around 9:20:14 (default 1 hour interval).
* should have started around 14:20:14 (default 6 hour interval).
* If current time is :
* 1) normal like 9:20:18, next report should be at 10:20:14
* 2) unexpected like 11:35:43, next report should be at 12:20:14
* 1) normal like 14:20:18, next report should be at 20:20:14.
* 2) unexpected like 21:35:43, next report should be at 2:20:14
* on the next day.
*/
nextBlockReportTime +=
(((monotonicNow() - nextBlockReportTime + blockReportIntervalMs) /