celeborn/docs/configuration/master.md
mingji d0ecf83fec [CELEBORN-764] Fix celeborn on HDFS might clean using app directories
### What changes were proposed in this pull request?
Make Celeborn leader clean expired app dirs on HDFS when an application is Lost.

### Why are the changes needed?
If Celeborn is working on HDFS, the storage manager starts and cleans expired app directories, and the newly created worker will want to delete any unknown app directories.
This will cause using app directories to be deleted unexpectedly.

### Does this PR introduce _any_ user-facing change?
NO.

### How was this patch tested?
UT and cluster.

Closes #1678 from FMX/CELEBORN-764.

Lead-authored-by: mingji <fengmingxiao.fmx@alibaba-inc.com>
Co-authored-by: Cheng Pan <pan3793@gmail.com>
Co-authored-by: Ethan Feng <fengmingxiao.fmx@alibaba-inc.com>
Signed-off-by: zky.zhoukeyong <zky.zhoukeyong@alibaba-inc.com>
2023-07-05 23:11:50 +08:00

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---
license: |
Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
---
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| Key | Default | Description | Since |
| --- | ------- | ----------- | ----- |
| celeborn.master.estimatedPartitionSize.initialSize | 64mb | Initial partition size for estimation, it will change according to runtime stats. | 0.3.0 |
| celeborn.master.estimatedPartitionSize.update.initialDelay | 5min | Initial delay time before start updating partition size for estimation. | 0.3.0 |
| celeborn.master.estimatedPartitionSize.update.interval | 10min | Interval of updating partition size for estimation. | 0.3.0 |
| celeborn.master.hdfs.expireDirs.timeout | 1h | The timeout for a expire dirs to be deleted on HDFS. | 0.3.0 |
| celeborn.master.heartbeat.application.timeout | 300s | Application heartbeat timeout. | 0.3.0 |
| celeborn.master.heartbeat.worker.timeout | 120s | Worker heartbeat timeout. | 0.3.0 |
| celeborn.master.host | &lt;localhost&gt; | Hostname for master to bind. | 0.2.0 |
| celeborn.master.port | 9097 | Port for master to bind. | 0.2.0 |
| celeborn.master.slot.assign.extraSlots | 2 | Extra slots number when master assign slots. | 0.3.0 |
| celeborn.master.slot.assign.loadAware.diskGroupGradient | 0.1 | This value means how many more workload will be placed into a faster disk group than a slower group. | 0.3.0 |
| celeborn.master.slot.assign.loadAware.fetchTimeWeight | 1.0 | Weight of average fetch time when calculating ordering in load-aware assignment strategy | 0.3.0 |
| celeborn.master.slot.assign.loadAware.flushTimeWeight | 0.0 | Weight of average flush time when calculating ordering in load-aware assignment strategy | 0.3.0 |
| celeborn.master.slot.assign.loadAware.numDiskGroups | 5 | This configuration is a guidance for load-aware slot allocation algorithm. This value is control how many disk groups will be created. | 0.3.0 |
| celeborn.master.slot.assign.policy | ROUNDROBIN | Policy for master to assign slots, Celeborn supports two types of policy: roundrobin and loadaware. Loadaware policy will be ignored when `HDFS` is enabled in `celeborn.storage.activeTypes` | 0.3.0 |
| celeborn.master.userResourceConsumption.update.interval | 30s | Time length for a window about compute user resource consumption. | 0.3.0 |
| celeborn.storage.activeTypes | HDD,SSD | Enabled storage levels. Available options: HDD,SSD,HDFS. | 0.3.0 |
| celeborn.storage.hdfs.dir | &lt;undefined&gt; | HDFS base directory for Celeborn to store shuffle data. | 0.2.0 |
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