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https://issues.apache.org/jira/browse/CASSANDRA-14820?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16651137#comment-16651137
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Dinesh Joshi commented on CASSANDRA-14820:
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I found one minor issue in {{ddl.rst#L466}} - {{additional_write_policy}}
description seems to be duplicated from the earlier row. Also minor nit on the
white space. Please fix on commit. Thanks!
> Upgrade to 4.0 fails with NullPointerException
> ----------------------------------------------
>
> Key: CASSANDRA-14820
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14820
> Project: Cassandra
> Issue Type: Bug
> Components: 4.0
> Reporter: Tommy Stendahl
> Assignee: Ariel Weisberg
> Priority: Major
>
> I tested to upgrade an existing cluster to latest 4.0 but it fails with a
> NullPointerException, I upgraded from 3.0.15 but upgrading from any 3.0.x or
> 3.11.x to 4.0 will give the same fault.
> {noformat}
>
> 2018-10-12T11:27:02.261+0200 ERROR [main] CassandraDaemon.java:251 Error
> while loading schema:
> java.lang.NullPointerException: null
> at org.apache.cassandra.utils.ByteBufferUtil.string(ByteBufferUtil.java:156)
> at
> org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:41)
> at
> org.apache.cassandra.serializers.AbstractTextSerializer.deserialize(AbstractTextSerializer.java:28)
> at
> org.apache.cassandra.db.marshal.AbstractType.compose(AbstractType.java:116)
> at
> org.apache.cassandra.cql3.UntypedResultSet$Row.getString(UntypedResultSet.java:267)
> at
> org.apache.cassandra.schema.SchemaKeyspace.createTableParamsFromRow(SchemaKeyspace.java:997)
> at
> org.apache.cassandra.schema.SchemaKeyspace.fetchTable(SchemaKeyspace.java:973)
> at
> org.apache.cassandra.schema.SchemaKeyspace.fetchTables(SchemaKeyspace.java:927)
> at
> org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspace(SchemaKeyspace.java:886)
> at
> org.apache.cassandra.schema.SchemaKeyspace.fetchKeyspacesWithout(SchemaKeyspace.java:877)
> at
> org.apache.cassandra.schema.SchemaKeyspace.fetchNonSystemKeyspaces(SchemaKeyspace.java:865)
> at org.apache.cassandra.schema.Schema.loadFromDisk(Schema.java:102)
> at org.apache.cassandra.schema.Schema.loadFromDisk(Schema.java:91)
> at
> org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:247)
> at
> org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:590)
> at
> org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:679)
> {noformat}
> The problem seams to be line 997 in SchemaKeyspace.java
>
> {noformat}
> .speculativeWriteThreshold(SpeculativeRetryPolicy.fromString(row.getString("speculative_write_threshold"{noformat}
> speculative_write_threshold is a new table option introduced in
> CASSANDRA-14404, when upgrading the table option is missing and we get a
> NullPointerException on this line.
>
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