[jira] [Updated] (HBASE-10662) RegionScanner never be closed if the region has been moved-out or re-opened when performing scan request
[ https://issues.apache.org/jira/browse/HBASE-10662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Feng Honghua updated HBASE-10662: - Summary: RegionScanner never be closed if the region has been moved-out or re-opened when performing scan request (was: RegionScanner never be closed when the region has been moved-out or re-opened when performing scan request) RegionScanner never be closed if the region has been moved-out or re-opened when performing scan request Key: HBASE-10662 URL: https://issues.apache.org/jira/browse/HBASE-10662 Project: HBase Issue Type: Bug Components: regionserver Reporter: Feng Honghua Assignee: Feng Honghua Attachments: HBASE-10662-trunk_v1.patch During regionserver processes scan request from client, it fails the request by throwing a wrapped NotServingRegionException to client if it finds the region related to the passed-in scanner-id has been re-opened, and it also removes the RegionScannerHolder from the scanners. In fact under this case, the old and invalid RegionScanner related to the passed-in scanner-id should be closed and the related lease should be cancelled at the mean time as well. Currently region's related scanners aren't closed when closing the region, a region scanner is closed only when requested explicitly by client, or by expiration of the related lease, in this sense the close of region scanners is quite passive and lag. When regionserver processes scan request from client and can't find online region corresponding to the passed-in scanner-id (due to being moved out) or find the region has been re-opened, it throws NotServingRegionException and removes the corresponding RegionScannerHolder from scanners without closing the related region scanner (nor cancelling the related lease), but when the lease expires, the related region scanner still doesn't be closed since it doesn't present in scanners now. -- This message was sent by Atlassian JIRA (v6.2#6252)
[jira] [Updated] (HBASE-10662) RegionScanner never be closed when the region has been moved-out or re-opened when performing scan request
[ https://issues.apache.org/jira/browse/HBASE-10662?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Feng Honghua updated HBASE-10662: - Summary: RegionScanner never be closed when the region has been moved-out or re-opened when performing scan request (was: RegionScanner should be closed and according lease should be cancelled in regionserver immediately if we find the related region has been moved-out or re-opened during performing scan request) RegionScanner never be closed when the region has been moved-out or re-opened when performing scan request -- Key: HBASE-10662 URL: https://issues.apache.org/jira/browse/HBASE-10662 Project: HBase Issue Type: Bug Components: regionserver Reporter: Feng Honghua Assignee: Feng Honghua Attachments: HBASE-10662-trunk_v1.patch During regionserver processes scan request from client, it fails the request by throwing a wrapped NotServingRegionException to client if it finds the region related to the passed-in scanner-id has been re-opened, and it also removes the RegionScannerHolder from the scanners. In fact under this case, the old and invalid RegionScanner related to the passed-in scanner-id should be closed and the related lease should be cancelled at the mean time as well. Currently region's related scanners aren't closed when closing the region, a region scanner is closed only when requested explicitly by client, or by expiration of the related lease, in this sense the close of region scanners is quite passive and lag. When regionserver processes scan request from client and can't find online region corresponding to the passed-in scanner-id (due to being moved out) or find the region has been re-opened, it throws NotServingRegionException and removes the corresponding RegionScannerHolder from scanners without closing the related region scanner (nor cancelling the related lease), but when the lease expires, the related region scanner still doesn't be closed since it doesn't present in scanners now. -- This message was sent by Atlassian JIRA (v6.2#6252)
