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Fix testRerouteOccursOnDiskPassingHighWatermark (#60869) 

Sometimes this test would refresh the disk stats so quickly that it hit
the refresh rate limiter even though it was almost completely disabled.
This commit allows the rate limiter to be completely disabled.

Closes #60587
This commit is contained in:
David Turner 2020-08-10 09:39:18 +01:00
parent 3bac6db466
commit 1f49e0b9d0
2 changed files with 4 additions and 8 deletions
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8
server/src/internalClusterTest/java/org/elasticsearch/cluster/routing/allocation/decider/MockDiskUsagesIT.java
View File

@ -34,7 +34,6 @@ import org.elasticsearch.env.Environment;
import org.elasticsearch.monitor.fs.FsInfo;
import org.elasticsearch.plugins.Plugin;
import org.elasticsearch.test.ESIntegTestCase;
import org.elasticsearch.test.junit.annotations.TestLogging;
import java.nio.file.Path;
import java.util.Arrays;
@ -79,9 +78,6 @@ public class MockDiskUsagesIT extends ESIntegTestCase {
return new FsInfo.Path(original.getPath(), original.getMount(), totalBytes, freeBytes, freeBytes);
}
@TestLogging(reason="https://github.com/elastic/elasticsearch/issues/60587",
value="org.elasticsearch.cluster.InternalClusterInfoService:TRACE," +
"org.elasticsearch.cluster.routing.allocation.DiskThresholdMonitor:TRACE")
public void testRerouteOccursOnDiskPassingHighWatermark() throws Exception {
for (int i = 0; i < 3; i++) {
// ensure that each node has a single data path
@ -105,7 +101,7 @@ public class MockDiskUsagesIT extends ESIntegTestCase {
.put(CLUSTER_ROUTING_ALLOCATION_LOW_DISK_WATERMARK_SETTING.getKey(), watermarkBytes ? "10b" : "90%")
.put(CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING.getKey(), watermarkBytes ? "10b" : "90%")
.put(CLUSTER_ROUTING_ALLOCATION_DISK_FLOOD_STAGE_WATERMARK_SETTING.getKey(), watermarkBytes ? "0b" : "100%")
.put(CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING.getKey(), "1ms")));
.put(CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING.getKey(), "0ms")));
// Create an index with 10 shards so we can check allocation for it
assertAcked(prepareCreate("test").setSettings(Settings.builder().put("number_of_shards", 10).put("number_of_replicas", 0)));
ensureGreen("test");
@ -241,7 +237,7 @@ public class MockDiskUsagesIT extends ESIntegTestCase {
.put(CLUSTER_ROUTING_ALLOCATION_LOW_DISK_WATERMARK_SETTING.getKey(), "90%")
.put(CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING.getKey(), "90%")
.put(CLUSTER_ROUTING_ALLOCATION_DISK_FLOOD_STAGE_WATERMARK_SETTING.getKey(), "100%")
.put(CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING.getKey(), "1ms")));
.put(CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING.getKey(), "0ms")));
final List<String> nodeIds = StreamSupport.stream(client().admin().cluster().prepareState().get().getState()
.getRoutingNodes().spliterator(), false).map(RoutingNode::nodeId).collect(Collectors.toList());

4
server/src/main/java/org/elasticsearch/cluster/routing/allocation/DiskThresholdMonitor.java
View File

@ -190,7 +190,7 @@ public class DiskThresholdMonitor {
nodesOverLowThreshold.add(node);
nodesOverHighThreshold.add(node);
if (lastRunTimeMillis.get() < currentTimeMillis - diskThresholdSettings.getRerouteInterval().millis()) {
if (lastRunTimeMillis.get() <= currentTimeMillis - diskThresholdSettings.getRerouteInterval().millis()) {
reroute = true;
explanation = "high disk watermark exceeded on one or more nodes";
usagesOverHighThreshold.add(usage);
@ -225,7 +225,7 @@ public class DiskThresholdMonitor {
if (nodesOverLowThreshold.contains(node)) {
// The node has previously been over the low watermark, but is no longer, so it may be possible to allocate more shards
// if we reroute now.
if (lastRunTimeMillis.get() < currentTimeMillis - diskThresholdSettings.getRerouteInterval().millis()) {
if (lastRunTimeMillis.get() <= currentTimeMillis - diskThresholdSettings.getRerouteInterval().millis()) {
reroute = true;
explanation = "one or more nodes has gone under the high or low watermark";
nodesOverLowThreshold.remove(node);