xtern commented on code in PR #4256:
URL: https://github.com/apache/ignite-3/pull/4256#discussion_r1732717034
##########
modules/catalog-compaction/src/main/java/org/apache/ignite/internal/catalog/compaction/CatalogCompactionRunner.java:
##########
@@ -247,30 +238,62 @@ void triggerCompaction(@Nullable HybridTimestamp lwm) {
return;
}
- lastRunFuture =
startCompaction(logicalTopologyService.localLogicalTopology());
+ lastRunFuture = startCompaction(lwm,
logicalTopologyService.localLogicalTopology());
}
});
}
- private CompletableFuture<Void> startCompaction(LogicalTopologySnapshot
topologySnapshot) {
- long localMinimum = localMinTimeProvider.time();
+ private @Nullable Long getMinLocalTime(HybridTimestamp lwm) {
+ Map<TablePartitionId, @Nullable Long> partitionStates =
localMinTimeProvider.minTimePerPartition();
- if (catalogManagerFacade.catalogByTsNullable(localMinimum) == null) {
- LOG.info("Catalog compaction skipped, nothing to compact
[timestamp={}].", localMinimum);
+ // Find the minimum time among all partitions.
+ long partitionMinTime = Long.MAX_VALUE;
- return CompletableFutures.nullCompletedFuture();
+ for (Map.Entry<TablePartitionId, Long> e : partitionStates.entrySet())
{
+ Long state = e.getValue();
+
+ if (state == null) {
+ LOG.debug("Partition state is missing [partition={}, all={}]",
e.getKey(), partitionStates);
+ return null;
+ }
+
+ partitionMinTime = Math.min(partitionMinTime, state);
}
- return determineGlobalMinimumRequiredTime(topologySnapshot.nodes(),
localMinimum)
+ // Choose the minimum time between the low watermark and the minimum
time among all partitions.
+ long chosenMinTime = Math.min(lwm.longValue(), partitionMinTime);
+
+ LOG.debug("Local minimum required time: [partitionMinTime={},
lowWatermark={}, chosen={}]",
+ partitionMinTime,
+ lwm,
+ chosenMinTime
+ );
+
+ return chosenMinTime;
+ }
+
+ private CompletableFuture<Void> startCompaction(HybridTimestamp lwm,
LogicalTopologySnapshot topologySnapshot) {
+ LOG.info("Catalog compaction started at [lowWaterMark={}]", lwm);
+
+ Long localMinRequiredTime = getMinLocalTime(lwm);
+
+ if (localMinRequiredTime == null) {
+ // If do not have local time yet, Use a placeholder value that is
going to be overwritten.
+ localMinRequiredTime = Long.MAX_VALUE;
+ }
+
+ return determineGlobalMinimumRequiredTime(topologySnapshot.nodes(),
localMinRequiredTime)
.thenComposeAsync(timeHolder -> {
long minRequiredTime = timeHolder.minRequiredTime;
long minActiveTxBeginTime =
timeHolder.minActiveTxBeginTime;
+
Catalog catalog =
catalogManagerFacade.catalogByTsNullable(minRequiredTime);
CompletableFuture<Boolean> catalogCompactionFut;
if (catalog == null) {
- LOG.info("Catalog compaction skipped, nothing to
compact [timestamp={}].", minRequiredTime);
+ LOG.info("Catalog compaction skipped, nothing to
compact [timestamp={}]. No catalog at minRequiredTime",
Review Comment:
pay attention to the @korlov42 comment
> Besides, every log message [must end with a
period](https://cwiki.apache.org/confluence/display/IGNITE/Java+Code+Style+Guide#JavaCodeStyleGuide-1.4Punctuation).
##########
modules/catalog-compaction/src/main/java/org/apache/ignite/internal/catalog/compaction/CatalogCompactionRunner.java:
##########
@@ -247,30 +238,62 @@ void triggerCompaction(@Nullable HybridTimestamp lwm) {
return;
}
- lastRunFuture =
startCompaction(logicalTopologyService.localLogicalTopology());
+ lastRunFuture = startCompaction(lwm,
logicalTopologyService.localLogicalTopology());
}
});
}
- private CompletableFuture<Void> startCompaction(LogicalTopologySnapshot
topologySnapshot) {
- long localMinimum = localMinTimeProvider.time();
+ private @Nullable Long getMinLocalTime(HybridTimestamp lwm) {
+ Map<TablePartitionId, @Nullable Long> partitionStates =
localMinTimeProvider.minTimePerPartition();
- if (catalogManagerFacade.catalogByTsNullable(localMinimum) == null) {
- LOG.info("Catalog compaction skipped, nothing to compact
[timestamp={}].", localMinimum);
+ // Find the minimum time among all partitions.
+ long partitionMinTime = Long.MAX_VALUE;
- return CompletableFutures.nullCompletedFuture();
+ for (Map.Entry<TablePartitionId, Long> e : partitionStates.entrySet())
{
+ Long state = e.getValue();
+
+ if (state == null) {
+ LOG.debug("Partition state is missing [partition={}, all={}]",
e.getKey(), partitionStates);
Review Comment:
Also if this map is huge enough toString() may take some time even if debug
is not enabled.
Also you missing period at the end of the sentence.
I suggest not to log ALL partitions and add period to the end of message.
##########
modules/catalog-compaction/src/main/java/org/apache/ignite/internal/catalog/compaction/CatalogCompactionRunner.java:
##########
@@ -247,30 +238,62 @@ void triggerCompaction(@Nullable HybridTimestamp lwm) {
return;
}
- lastRunFuture =
startCompaction(logicalTopologyService.localLogicalTopology());
+ lastRunFuture = startCompaction(lwm,
logicalTopologyService.localLogicalTopology());
}
});
}
- private CompletableFuture<Void> startCompaction(LogicalTopologySnapshot
topologySnapshot) {
- long localMinimum = localMinTimeProvider.time();
+ private @Nullable Long getMinLocalTime(HybridTimestamp lwm) {
+ Map<TablePartitionId, @Nullable Long> partitionStates =
localMinTimeProvider.minTimePerPartition();
- if (catalogManagerFacade.catalogByTsNullable(localMinimum) == null) {
- LOG.info("Catalog compaction skipped, nothing to compact
[timestamp={}].", localMinimum);
+ // Find the minimum time among all partitions.
+ long partitionMinTime = Long.MAX_VALUE;
- return CompletableFutures.nullCompletedFuture();
+ for (Map.Entry<TablePartitionId, Long> e : partitionStates.entrySet())
{
+ Long state = e.getValue();
+
+ if (state == null) {
+ LOG.debug("Partition state is missing [partition={}, all={}]",
e.getKey(), partitionStates);
Review Comment:
I'm not sure we need dump ALL partitions even on debug level :thinking:
##########
modules/catalog-compaction/src/main/java/org/apache/ignite/internal/catalog/compaction/CatalogCompactionRunner.java:
##########
@@ -299,7 +334,11 @@ private CompletableFuture<Void>
startCompaction(LogicalTopologySnapshot topology
catalogCompactionFut,
propagateToReplicasFut
);
- }, executor);
+ }, executor).whenComplete((r, t) -> {
Review Comment:
My main point was that this handler should be removed. Because we already
have such logging in other places.
##########
modules/catalog-compaction/src/main/java/org/apache/ignite/internal/catalog/compaction/CatalogCompactionRunner.java:
##########
@@ -247,30 +238,70 @@ void triggerCompaction(@Nullable HybridTimestamp lwm) {
return;
}
- lastRunFuture =
startCompaction(logicalTopologyService.localLogicalTopology());
+ lastRunFuture = startCompaction(lwm,
logicalTopologyService.localLogicalTopology());
}
});
}
- private CompletableFuture<Void> startCompaction(LogicalTopologySnapshot
topologySnapshot) {
- long localMinimum = localMinTimeProvider.time();
+ private @Nullable Long getMinLocalTime(HybridTimestamp lwm) {
+ Map<TablePartitionId, @Nullable Long> partitionStates =
localMinTimeProvider.minTimePerPartition();
- if (catalogManagerFacade.catalogByTsNullable(localMinimum) == null) {
- LOG.info("Catalog compaction skipped, nothing to compact
[timestamp={}].", localMinimum);
+ // Find the minimum time among all partitions.
+ long partitionMinTime = Long.MAX_VALUE;
- return CompletableFutures.nullCompletedFuture();
+ for (Map.Entry<TablePartitionId, Long> e : partitionStates.entrySet())
{
+ Long state = e.getValue();
+
+ if (state == null) {
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Partition state is missing [partition={},
all={}]", e.getKey(), partitionStates);
+ }
+ return null;
+ }
+
+ partitionMinTime = Math.min(partitionMinTime, state);
}
- return determineGlobalMinimumRequiredTime(topologySnapshot.nodes(),
localMinimum)
+ // Choose the minimum time between the low watermark and the minimum
time among all partitions.
+ long chosenMinTime = Math.min(lwm.longValue(), partitionMinTime);
+
+ if (LOG.isDebugEnabled()) {
+ LOG.debug("Local minimum required time: [partitionMinTime={},
lowWatermark={}, chosen={}]",
+ partitionMinTime,
+ lwm,
+ chosenMinTime
+ );
+ }
+
+ return chosenMinTime;
+ }
+
+ private CompletableFuture<Void> startCompaction(HybridTimestamp lwm,
LogicalTopologySnapshot topologySnapshot) {
+ LOG.info("Catalog compaction started at [lowWaterMark={}]", lwm);
+
+ Long localMinRequiredTime = getMinLocalTime(lwm);
+
+ if (localMinRequiredTime == null) {
+ // If do not have local time yet, Use a placeholder value that is
going to be overwritten.
+ localMinRequiredTime = Long.MAX_VALUE;
Review Comment:
How this was fixed?
Why not to return MIN_VALUE instead of null from `getMinLocalTime`?
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