HDFS-10803. TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails intermittently due to no free space available. Contributed by Yiqun Lin.
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@ -416,13 +416,19 @@ private void unevenDistribution(final int nNameNodes,
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}
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conf.set(DFSConfigKeys.DFS_NAMENODE_SAFEMODE_THRESHOLD_PCT_KEY, "0.0f");
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// Adjust the capacity of each DN since it will redistribute blocks
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// nNameNodes times in the following operations.
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long[] newCapacities = new long[nDataNodes];
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for (int i = 0; i < nDataNodes; i++) {
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newCapacities[i] = capacities[i] * nNameNodes;
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}
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{
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LOG.info("UNEVEN 10");
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final MiniDFSCluster cluster = new MiniDFSCluster.Builder(conf)
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.nnTopology(MiniDFSNNTopology.simpleFederatedTopology(nNameNodes))
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.numDataNodes(nDataNodes)
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.racks(racks)
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.simulatedCapacities(capacities)
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.simulatedCapacities(newCapacities)
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.format(false)
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.build();
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LOG.info("UNEVEN 11");
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@ -450,7 +456,7 @@ private void unevenDistribution(final int nNameNodes,
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LOG.info("UNEVEN 13: n=" + n);
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}
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final long totalCapacity = TestBalancer.sum(capacities);
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final long totalCapacity = TestBalancer.sum(newCapacities);
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final long totalUsed = nNameNodes*usedSpacePerNN;
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LOG.info("UNEVEN 14");
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runBalancer(s, totalUsed, totalCapacity);
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