gjacoby126 commented on a change in pull request #640: PHOENIX-5578 - CREATE
TABLE IF NOT EXISTS loads IndexRegionObserver o…
URL: https://github.com/apache/phoenix/pull/640#discussion_r349399942
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File path:
phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
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@@ -999,6 +1007,23 @@ private void addCoprocessors(byte[] tableName,
HTableDescriptor descriptor, PTab
}
}
+ private boolean doesPhoenixTableAlreadyExist(HTableDescriptor
existingDesc) {
+ //if the table descriptor already has Phoenix coprocs, we assume it's
+ //already gone through a Phoenix create statement once
+ if (existingDesc == null){
+ return false;
+ }
+ boolean hasScanObserver =
existingDesc.hasCoprocessor(ScanRegionObserver.class.getName());
+ boolean hasUnAggObserver = existingDesc.hasCoprocessor(
+ UngroupedAggregateRegionObserver.class.getName());
+ boolean hasGroupedObserver = existingDesc.hasCoprocessor(
+ GroupedAggregateRegionObserver.class.getName());
+ boolean hasIndexObserver =
existingDesc.hasCoprocessor(Indexer.class.getName())
+ || existingDesc.hasCoprocessor(IndexRegionObserver.class.getName())
+ || existingDesc.hasCoprocessor(GlobalIndexChecker.class.getName());
+ return hasScanObserver && hasUnAggObserver && hasGroupedObserver &&
hasIndexObserver;
Review comment:
Coprocs could exist for other, non-Phoenix reasons, or be incomplete because
of some prior metadata corruption.
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