HDFS-7894. Rolling upgrade readiness is not updated in jmx until query command is issued. Contributed by Brahma Reddy Battula.
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@ -765,6 +765,9 @@ Release 2.7.1 - UNRELEASED
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HDFS-8226. Non-HA rollback compatibility broken (J.Andreina via vinayakumarb)
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HDFS-7894. Rolling upgrade readiness is not updated in jmx until query
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command is issued. (Brahma Reddy Battula via kihwal)
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Release 2.7.0 - 2015-04-20
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INCOMPATIBLE CHANGES
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@ -7608,11 +7608,30 @@ public class FSNamesystem implements Namesystem, FSNamesystemMBean,
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@Override // NameNodeMXBean
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public RollingUpgradeInfo.Bean getRollingUpgradeStatus() {
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if (!isRollingUpgrade()) {
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return null;
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}
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RollingUpgradeInfo upgradeInfo = getRollingUpgradeInfo();
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if (upgradeInfo != null) {
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if (upgradeInfo.createdRollbackImages()) {
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return new RollingUpgradeInfo.Bean(upgradeInfo);
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}
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return null;
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readLock();
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try {
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// check again after acquiring the read lock.
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upgradeInfo = getRollingUpgradeInfo();
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if (upgradeInfo == null) {
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return null;
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}
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if (!upgradeInfo.createdRollbackImages()) {
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boolean hasRollbackImage = this.getFSImage().hasRollbackFSImage();
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upgradeInfo.setCreatedRollbackImages(hasRollbackImage);
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}
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} catch (IOException ioe) {
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LOG.warn("Encountered exception setting Rollback Image", ioe);
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} finally {
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readUnlock();
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}
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return new RollingUpgradeInfo.Bean(upgradeInfo);
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}
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/** Is rolling upgrade in progress? */
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