klcopp commented on a change in pull request #2148:
URL: https://github.com/apache/hive/pull/2148#discussion_r612517973
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -3002,6 +3002,22 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
HIVE_TXN_READONLY_ENABLED("hive.txn.readonly.enabled", false,
"Enables read-only transaction classification and related
optimizations"),
+
HIVE_TXN_ACID_METRICS_MAX_CACHE_SIZE("hive.txn.acid.metrics.max.cache.size",
100,
+ "Size of the ACID metrics cache. Only topN metrics would remain in the
cache if exceeded."),
+
HIVE_TXN_ACID_METRICS_CACHE_DURATION("hive.txn.acid.metrics.cache.duration",
"7200s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Maximum lifetime in seconds for an entry in the ACID metrics cache."),
+
HIVE_TXN_ACID_METRICS_REPORTING_INTERVAL("hive.txn.acid.metrics.reporting.interval",
"30s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Reporting period for ACID metrics in seconds."),
+
HIVE_TXN_ACID_METRICS_DELTA_NUM_THRESHOLD("hive.txn.acid.metrics.delta.num.threshold",
100,
+ "Threshold for the number of delta files to include in the ACID
metrics report."),
+
HIVE_TXN_ACID_METRICS_OBSOLETE_DELTA_NUM_THRESHOLD("hive.txn.acid.metrics.obsolete.delta.num.threshold",
100,
Review comment:
Similar to above
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -3002,6 +3002,22 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
HIVE_TXN_READONLY_ENABLED("hive.txn.readonly.enabled", false,
"Enables read-only transaction classification and related
optimizations"),
+
HIVE_TXN_ACID_METRICS_MAX_CACHE_SIZE("hive.txn.acid.metrics.max.cache.size",
100,
+ "Size of the ACID metrics cache. Only topN metrics would remain in the
cache if exceeded."),
+
HIVE_TXN_ACID_METRICS_CACHE_DURATION("hive.txn.acid.metrics.cache.duration",
"7200s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Maximum lifetime in seconds for an entry in the ACID metrics cache."),
+
HIVE_TXN_ACID_METRICS_REPORTING_INTERVAL("hive.txn.acid.metrics.reporting.interval",
"30s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Reporting period for ACID metrics in seconds."),
+
HIVE_TXN_ACID_METRICS_DELTA_NUM_THRESHOLD("hive.txn.acid.metrics.delta.num.threshold",
100,
Review comment:
Isn't this: the minimum number of active delta files a table/partition
must have to be included in the report
##########
File path:
ql/src/test/org/apache/hadoop/hive/ql/txn/compactor/TestCompactionMetrics.java
##########
@@ -43,17 +44,18 @@
import org.apache.hadoop.hive.metastore.metrics.Metrics;
import org.apache.hadoop.hive.metastore.metrics.MetricsConstants;
import org.apache.hadoop.hive.metastore.txn.TxnStore;
+import
org.apache.hadoop.hive.ql.txn.compactor.metrics.DeltaFilesMetricReporter;
+import org.apache.tez.common.counters.TezCounters;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Objects;
+import java.util.*;
Review comment:
I think it's not recommended to import all classes in the package
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -3002,6 +3002,22 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
HIVE_TXN_READONLY_ENABLED("hive.txn.readonly.enabled", false,
"Enables read-only transaction classification and related
optimizations"),
Review comment:
Here I would add a comment like:
Configs having to do with DeltaFilesMetricReporter, which collects lists of
most recently active tables with the most number of active/obsolete deltas.
##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -3002,6 +3002,22 @@ private static void
populateLlapDaemonVarsSet(Set<String> llapDaemonVarsSetLocal
HIVE_TXN_READONLY_ENABLED("hive.txn.readonly.enabled", false,
"Enables read-only transaction classification and related
optimizations"),
+
HIVE_TXN_ACID_METRICS_MAX_CACHE_SIZE("hive.txn.acid.metrics.max.cache.size",
100,
+ "Size of the ACID metrics cache. Only topN metrics would remain in the
cache if exceeded."),
+
HIVE_TXN_ACID_METRICS_CACHE_DURATION("hive.txn.acid.metrics.cache.duration",
"7200s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Maximum lifetime in seconds for an entry in the ACID metrics cache."),
+
HIVE_TXN_ACID_METRICS_REPORTING_INTERVAL("hive.txn.acid.metrics.reporting.interval",
"30s",
+ new TimeValidator(TimeUnit.SECONDS),
+ "Reporting period for ACID metrics in seconds."),
+
HIVE_TXN_ACID_METRICS_DELTA_NUM_THRESHOLD("hive.txn.acid.metrics.delta.num.threshold",
100,
+ "Threshold for the number of delta files to include in the ACID
metrics report."),
+
HIVE_TXN_ACID_METRICS_OBSOLETE_DELTA_NUM_THRESHOLD("hive.txn.acid.metrics.obsolete.delta.num.threshold",
100,
+ "Threshold for the number of obsolete delta files to include in the
ACID metrics report."),
+
HIVE_TXN_ACID_METRICS_DELTA_CHECK_THRESHOLD("hive.txn.acid.metrics.delta.check.threshold",
"300s",
Review comment:
I think this is clearer: Deltas older than this value will not be
included ...
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