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https://issues.apache.org/jira/browse/KUDU-2473?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510470#comment-16510470
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Hao Hao commented on KUDU-2473:
-------------------------------
I think this is the same issue as KUDU-2415. Some relevant discussion on slack
https://getkudu.slack.com/archives/C0CPXJ3CH/p1524614543000021.
> READ_YOUR_WRITES error on snapshot timestamp
> --------------------------------------------
>
> Key: KUDU-2473
> URL: https://issues.apache.org/jira/browse/KUDU-2473
> Project: Kudu
> Issue Type: Bug
> Components: impala
> Reporter: Thomas Tauber-Marshall
> Priority: Critical
>
> I'm trying to implement support for READ_YOUR_WRITES for Impala, but I'm
> finding that if SetLatestObservedTimestamp() isn't called (eg. because we
> haven't interacted with Kudu yet in the current session and don't have a
> timestamp to set), attempting to scan tables always fails with an error of
> the form:
> org.apache.kudu.client.NonRecoverableException: Snapshot timestamp is earlier
> than the ancient history mark. Consider increasing the value of the
> configuration parameter --tablet_history_max_age_sec. Snapshot timestamp: P:
> 0 usec, L: 1 Ancient History Mark: P: 1528845756599966 usec, L: 0 Physical
> time difference: -1528845756.600s
> Minimal repro:
> {noformat}
> KuduClientBuilder b = new KuduClient.KuduClientBuilder("localhost");
> KuduClient client = b.build();
> KuduTable table = client.openTable("read_mode_test");
> KuduScannerBuilder scannerBuilder = client.newScannerBuilder(table);
> scannerBuilder.readMode(AsyncKuduScanner.ReadMode.READ_YOUR_WRITES);
> KuduScanner scanner = scannerBuilder.build();
> while (scanner.hasMoreRows()) {
> scanner.nextRows();
> }
> {noformat}
> I'm using Kudu at git hash a954418
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