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Reduce deadlock probability of ClientContext.close / TabletLocator.getLocator #6470

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Reduce deadlock probability of ClientContext.close / TabletLocator.getLocator #6470

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Reduce probability of ClientContext.close / TabletLocator.getLocator …
dlmarion Jul 9, 2026
eccdf93
Implement PR suggestions
dlmarion Jul 9, 2026
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11 changes: 7 additions & 4 deletions core/src/main/java/org/apache/accumulo/core/clientImpl/ClientContext.java
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Original file line number Diff line number Diff line change
Expand Up @@ -621,13 +621,16 @@ public ZooCache getZooCache() {
}

private TableZooHelper tableZooHelper;
private final Object tableZooMonitor = new Object();

private synchronized TableZooHelper tableZooHelper() {
private TableZooHelper tableZooHelper() {
ensureOpen();
if (tableZooHelper == null) {
tableZooHelper = new TableZooHelper(this);
synchronized (tableZooMonitor) {
if (tableZooHelper == null) {
tableZooHelper = new TableZooHelper(this);
}
return tableZooHelper;
}
return tableZooHelper;
}

public TableId getTableId(String tableName) throws TableNotFoundException {
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