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HDFS-9332. Fix Precondition failures from NameNodeEditLogRoller while saving namespace. 

(cherry picked from commit 888c6245e2)
This commit is contained in:
Andrew Wang 2015-10-29 11:30:47 -07:00
parent 30791cb0d0
commit 5e5e693a0a
2 changed files with 4 additions and 3 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -1361,6 +1361,9 @@ Release 2.8.0 - UNRELEASED
HDFS-9044. Give Priority to FavouredNodes , before selecting HDFS-9044. Give Priority to FavouredNodes , before selecting
nodes from FavouredNode's Node Group (J.Andreina via vinayakumarb) nodes from FavouredNode's Node Group (J.Andreina via vinayakumarb)
HDFS-9332. Fix Precondition failures from NameNodeEditLogRoller while
saving namespace. (wang)
Release 2.7.2 - UNRELEASED Release 2.7.2 - UNRELEASED
INCOMPATIBLE CHANGES INCOMPATIBLE CHANGES

4
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java
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@ -3674,9 +3674,7 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
public void run() { public void run() {
while (fsRunning && shouldRun) { while (fsRunning && shouldRun) {
try { try {
FSEditLog editLog = getFSImage().getEditLog(); long numEdits = getTransactionsSinceLastLogRoll();
long numEdits =
editLog.getLastWrittenTxId() - editLog.getCurSegmentTxId();
if (numEdits > rollThreshold) { if (numEdits > rollThreshold) {
FSNamesystem.LOG.info("NameNode rolling its own edit log because" FSNamesystem.LOG.info("NameNode rolling its own edit log because"
+ " number of edits in open segment exceeds threshold of " + " number of edits in open segment exceeds threshold of "