HDFS-16391. Avoid evaluation of LOG.debug statement in NameNodeHeartbeatService (#3820)
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@ -267,12 +267,16 @@ private void updateState() {
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LOG.error("Namenode is not operational: {}", getNamenodeDesc());
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} else if (report.haStateValid()) {
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// block and HA status available
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LOG.debug("Received service state: {} from HA namenode: {}",
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report.getState(), getNamenodeDesc());
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if (LOG.isDebugEnabled()) {
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LOG.debug("Received service state: {} from HA namenode: {}",
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report.getState(), getNamenodeDesc());
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}
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} else if (localTarget == null) {
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// block info available, HA status not expected
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LOG.debug(
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"Reporting non-HA namenode as operational: " + getNamenodeDesc());
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if (LOG.isDebugEnabled()) {
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LOG.debug(
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"Reporting non-HA namenode as operational: {}", getNamenodeDesc());
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}
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} else {
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// block info available, HA status should be available, but was not
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// fetched do nothing and let the current state stand
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