Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/incubator-trafodion/pull/1206#discussion_r133294784
--- Diff: core/sql/src/main/java/org/trafodion/sql/HBaseClient.java ---
@@ -1395,6 +1422,169 @@ private boolean estimateRowCountBody(String
tblName, int partialRowSize,
return true;
}
+ // Similar to estimateRowCount, except that the implementation
+ // uses a coprocessor. This is necessary when HBase encryption is
+ // in use, because the Trafodion ID does not have the proper
+ // authorization to the KeyStore file used by HBase.
+ public boolean estimateRowCountViaCoprocessor(String tblName, int
partialRowSize,
+ int numCols, int
retryLimitMilliSeconds, long[] rc)
+ throws ServiceException, IOException {
+ if (logger.isDebugEnabled()) {
+ logger.debug("HBaseClient.estimateRowCountViaCoprocessor(" +
tblName + ") called.");
+ logger.debug("numCols = " + numCols + ", partialRowSize = " +
partialRowSize);
+ }
+
+ boolean retcode = true;
+ rc[0] = 0;
+
+ HConnection connection = null;
+ HTableInterface table = null;
+ connection = HConnectionManager.createConnection(config);
--- End diff --
Can you use getConnection instead. It ensures that there is only one
connection per process
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