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Alex Juncevich commented on HDDS-11261: --------------------------------------- [~weiming] Oh, i don't know ) I think cache should be refreshed if something will go wrong. Can you describe you problem? > Get key answer with "There are insufficient datanodes to read the EC block" > even nodes amount is sufficient > ----------------------------------------------------------------------------------------------------------- > > Key: HDDS-11261 > URL: https://issues.apache.org/jira/browse/HDDS-11261 > Project: Apache Ozone > Issue Type: Bug > Reporter: Alex Juncevich > Assignee: Alex Juncevich > Priority: Major > > How to reproduce: > # Create cluster with 9 datanodes > # On datanode create volume (ozone sh volume create /data) > # Create bucket with EC replication rs-6-3-1024k (ozone sh bucket create > data/test-bucket --type EC --replication rs-6-3-1024k) > # Create file e.x. 50 MB (fallocate -l 10M small_file_1) > # Put file to bucket (ozone sh key put data/test-bucket/small_file_1 > small_file_1 --type EC --replication rs-6-3-1024k) > # Disable 4 nodes > # Try to get file from bucket (ozone sh key get > /data/test-bucket/small_file_1 /tmp/sm_1_1) > # You will get "There are insufficient datanodes to read the EC block". It's > ok, nodes amount should be at least 6. > # Enable 1 node and as fast as possible try to get file. > # You will get "There are insufficient datanodes to read the EC block". It > is not ok, nodes now 6. > # You can try get file from minute later and get this error again. > I reproduced it via docker-compose. With fixed nodes ip addresses (it's > important, because docker compose can change ip addresses if not fix). > Why it happened? Command getKey in Ozone Manager has cache. And this cache in > this case is not actual. When we try to get file again and again OM return > for us list of 5 nodes, instead of 6. > I solved it by refresh cache and recreate Input and Output streams. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@ozone.apache.org For additional commands, e-mail: issues-h...@ozone.apache.org