Wellington Chevreuil created HBASE-25331: --------------------------------------------
Summary: [HBOSS] TreeLockManager should log warnings about lock contention periodically Key: HBASE-25331 URL: https://issues.apache.org/jira/browse/HBASE-25331 Project: HBase Issue Type: Improvement Reporter: Wellington Chevreuil Assignee: Wellington Chevreuil While performing some internal tests with hboss, [~psomogyi] noticed that *TreeLockManager* class logs too frequently when it is waiting on parent write lock. {noformat} 2020-10-26 17:35:41,719 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,720 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,721 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,723 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,724 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,725 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,726 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,728 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,729 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 2020-10-26 17:35:41,730 WARN org.apache.hadoop.hbase.oss.sync.TreeLockManager: Blocked waiting for some parent write lock, waiting: /s3a/hbase/hbase-dl/db1/hbase/data/default/test1/.tabledesc/.tableinfo.0000000001 {noformat} In 4 seconds on a single RegionServer this WARN was logged 1767 times. This modifies current logging logic, to calculate the time spent trying to acquire locks on individual nodes, then warning only given a configurable threshold is exhausted. -- This message was sent by Atlassian Jira (v8.3.4#803005)