Falin Luo

HADOOP-18362. Solve ZKFailoverController throw ambiguous exception

2

### Description of PR We modified the Groups.java file, manually checked the cache validity time in the initialization function of this file, and then threw an exception at an earlier...

HBASE-27016 when “zookeeper.session.timeout” is set to a negative number, HMaster cannot stop normally

4

[https://issues.apache.org/jira/browse/HBASE-27016] fix bug for local mode.

The troubles caused by multiple configuration dependencies

5

**Is your feature request related to a problem? Please describe.** `alluxio.master.journal.folder` default value is `${alluxio.work.dir}/journal`, if we don't set the first config, it will use the default value which related...

Format the master journal path when using the embedded journal will bring unexpected result.

2

**Alluxio Version:** 2.9.0 **Describe the bug** If we set the `alluxio.master.journal.folder` as `${alluxio.work.dir}` and use embedded journal. And when we start the alluxio by shell like `./bin/alluxio format`, it will...

When start alluxio by using misconf, the function of the logging system is abnormal.

3

**Alluxio Version:** 2.9.0 **Describe the bug** When set `alluxio.master.ttl.checker.interval` to zero or negative, the log system of master will quickly reach the top. The number of master.log quickly reach 100,...