Hi, We are trying to understand durability possible with Hbase and any contingencies that need to be planned.
I went through few blogs by Lars (http://bit.ly/10KcvVb , http://bit.ly/1y1sZWH ) and JIRA (HBASE-5954, HBASE-12130) This is my understanding: 1. HBase currently uses flush/hflush interface of HDFS. This ensures that WALEdit are flushed to all DN (but not flushed to disk) 2. If there is datacenter level power failure, there are chances of data loss due to loss of WAL edits 3. Complete sync behavior will be available only after HBASE-5954 is completed. Is this understanding correct? Regards, Kiran __________________________________________________________________________________________________________ This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! __________________________________________________________________________________________________________
