[ https://issues.apache.org/jira/browse/CASSANDRA-12296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15567769#comment-15567769 ]
Jeff Jirsa commented on CASSANDRA-12296: ---------------------------------------- {quote} is not true, at least from my testing with rebuilds... I couldn't force this error message to occur with repair, but maybe I'm missing something. {quote} It can't hit with repair because that code block requires {{strat.getReplicationFactor() == 1}} - in that case, there would be nothing to repair. The case I was imagining was bootstrap related, which has a similar error message, but is actually in {{getAllRangesWithStrictSourcesFor}} rather than {{getRangeFetchMap}} - so I withdraw my comment, and insert foot firmly into mouth - I can't see any way to trigger this with NTS, so perhaps "switch to NTS" is the right fix. > system_auth can't be rebuilt by default > --------------------------------------- > > Key: CASSANDRA-12296 > URL: https://issues.apache.org/jira/browse/CASSANDRA-12296 > Project: Cassandra > Issue Type: Bug > Reporter: Jim Witschey > Priority: Minor > Labels: lhf > Attachments: 12296.patch > > > This came up in discussion of CASSANDRA-11687. {{nodetool rebuild}} was > failing in a dtest. [~pauloricardomg] explained: > bq. before [CASSANDRA-11848] the local node could be considered a source, > while now sources are restricted only to dc2, so since {{system_auth}} uses > {{SimpleStrategy}} depending on the token arrangement there could or not be > sources from dc2. Fix is to either use > {{-Dcassandra.consistent.rangemovement=false}} or update {{system_auth}} to > use {{NetworkTopologyStrategy}} with 2 dcs.. > This is, at the very least, a UX bug. When {{rebuild}} fails, it fails with > {code} > nodetool: Unable to find sufficient sources for streaming range > (-3287869951390391138,-1624006824486474209] in keyspace system_auth with > RF=1.If you want to ignore this, consider using system property > -Dcassandra.consistent.rangemovement=false. > {code} > which suggests that a user should give up consistency guarantees when it's > not necessary. -- This message was sent by Atlassian JIRA (v6.3.4#6332)