bitblender commented on a change in pull request #1355: DRILL-6560: Enhanced
the batch statistics logging enablement
URL: https://github.com/apache/drill/pull/1355#discussion_r201807628
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/util/record/RecordBatchStats.java
##########
@@ -100,6 +108,119 @@ private String getQueryId(FragmentContext _context) {
}
return "NA";
}
+
+ private boolean isBatchStatsEnabledForOperator(FragmentContext context,
OperatorContext oContext) {
+ // The configuration can select what operators should log batch
statistics
+ final String statsLoggingOperator =
context.getOptions().getString(ExecConstants.STATS_LOGGING_BATCH_OPERATOR_OPTION).toUpperCase();
+ final String allOperatorsStr = "ALL";
+
+ // All operators are allowed to log batch statistics
+ if (allOperatorsStr.equals(statsLoggingOperator)) {
+ return true;
+ }
+
+ // No, only a select few are allowed; syntax:
operator-id-1,operator-id-2,..
+ final String[] operators = statsLoggingOperator.split(",");
+ final String operatorId = oContext.getStats().getId().toUpperCase();
+
+ for (int idx = 0; idx < operators.length; idx++) {
+ // We use "contains" because the operator identifier is a composite
string; e.g., 3:[PARQUET_ROW_GROUP_SCAN]
+ if (operatorId.contains(operators[idx])) {
+ return true;
+ }
+ }
+
+ return false;
+ }
+ }
+
+ /**
+ * @see {@link RecordBatchStats#logRecordBatchStats(String, RecordBatch,
RecordBatchStatsContext)}
+ */
+ public static void logRecordBatchStats(RecordBatch recordBatch,
+ RecordBatchStatsContext batchStatsContext) {
+
+ logRecordBatchStats(null, recordBatch, batchStatsContext);
+ }
+
+ /**
+ * Logs record batch statistics for the input record batch (logging happens
only
+ * when record statistics logging is enabled).
+ *
+ * @param sourceId optional source identifier for scanners
+ * @param recordBatch a set of records
+ * @param batchStatsContext batch stats context object
+ */
+ public static void logRecordBatchStats(String sourceId,
Review comment:
Also, in a mid-stream operator, how to do I print stats in a way that will
allow one to distinguish between the incoming batch stats and the outgoing
batch stats in the log file ?
Should there be a *String msg* parameter to allow the caller to tag the
output ?
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