morningman opened a new pull request #519: Change the default bdbje sync policy to SYNC URL: https://github.com/apache/incubator-doris/pull/519 Also add a new config 'txn_rollback_limit'. In case that only one Master FE is deployed and 'master_sync_policy' is set to 'WRITE_NO_SYNC', the meta journal may be lost when system crash. So that some journal which are already synced to other FEs should be rollbacked. And the default 'txn_rollback_limit' is only 10 in bdbje, which is not enough for some cases
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