HBASE-29073 StochasticLoadBalancer has NPE potential for sumMultiplier field #136
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added 3 commits
January 14, 2025 10:13
…Map, rather than ordinal based indexing
rmdmattingly
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Jan 14, 2025
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| float localSumMultiplier = 0; // in case sumMultiplier is not initialized | ||
| for (CostFunction c : costFunctions) { | ||
| if (!c.isNeeded()) { | ||
| LOG.trace("{} not needed", c.getClass().getSimpleName()); | ||
| continue; | ||
| } | ||
| total += c.cost() * c.getMultiplier(); | ||
| localSumMultiplier += c.getMultiplier(); | ||
| } | ||
| sumMultiplier = localSumMultiplier; |
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This is a small change, but sumMultiplier is initialized in balanceTable, and needsBalance is both visible to the package, and could reasonably be called before balancing. We're iterating through cost functions anyway here, we might as well have a local copy of the total multiplier
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Continuing to chain PRs here. I can ship this when #135 has been shipped