Sergey Uttsel created IGNITE-19042:
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Summary: NPE on first scale up topology event
Key: IGNITE-19042
URL: https://issues.apache.org/jira/browse/IGNITE-19042
Project: Ignite
Issue Type: Bug
Reporter: Sergey Uttsel
Assignee: Sergey Uttsel
h3. Motivation
NullPointerException in log on start the first node in the cluster if
DistributionZoneConfigurationSchema#dataNodesAutoAdjustScaleUp and
DistributionZoneConfigurationSchema#dataNodesAutoAdjustScaleDown are 0.
How to reproduce:
Set DistributionZoneConfigurationSchema#dataNodesAutoAdjustScaleUp = 0 and
DistributionZoneConfigurationSchema#dataNodesAutoAdjustScaleDown = 0.
Start the test which starts the node. For example ItTablesApiTest#testAddIndex.
See NullPointerException in the log.
{code:java}
Caused by: java.lang.NullPointerException at
java.base/java.io.ByteArrayInputStream.<init>(ByteArrayInputStream.java:108) at
org.apache.ignite.internal.util.ByteUtils.fromBytes(ByteUtils.java:152) at
org.apache.ignite.internal.distributionzones.DistributionZoneManager.lambda$saveDataNodesToMetaStorageOnScaleUp$32(DistributionZoneManager.java:1096)
at
org.apache.ignite.internal.util.IgniteUtils.inBusyLock(IgniteUtils.java:870) at
org.apache.ignite.internal.distributionzones.DistributionZoneManager.lambda$saveDataNodesToMetaStorageOnScaleUp$33(DistributionZoneManager.java:1090)
at
java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1072)
... 13 more {code}
The root cause is zoneDataNodesKey, zoneScaleUpChangeTriggerKey,
zoneScaleDownChangeTriggerKey are not initialized of zones.
Definition of Done
zoneDataNodesKey, zoneScaleUpChangeTriggerKey, zoneScaleDownChangeTriggerKey
are initialized on the node start.
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