HDFS-16858. Dynamically adjust max slow disks to exclude. #5180
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slfan1989
reviewed
Dec 1, 2022
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_MAX_NUM_BLOCKS_TO_LOG_KEY; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_METRICS_LOGGER_PERIOD_SECONDS_DEFAULT; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_METRICS_LOGGER_PERIOD_SECONDS_KEY; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.*; |
slfan1989
reviewed
Dec 1, 2022
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_MIN_OUTLIER_DETECTION_DISKS_KEY; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_OUTLIERS_REPORT_INTERVAL_KEY; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.DFS_DATANODE_SLOWDISK_LOW_THRESHOLD_MS_KEY; | ||
| import static org.apache.hadoop.hdfs.DFSConfigKeys.*; |
slfan1989
reviewed
Dec 1, 2022
| assertEquals(String.format("expect %s is not configured", | ||
| DFS_DATANODE_MIN_OUTLIER_DETECTION_DISKS_KEY), null, | ||
| dn.getConf().get(DFS_DATANODE_MIN_OUTLIER_DETECTION_DISKS_KEY)); | ||
| assertEquals(String.format("expect %s is not configured", | ||
| DFS_DATANODE_SLOWDISK_LOW_THRESHOLD_MS_KEY), null, | ||
| dn.getConf().get(DFS_DATANODE_SLOWDISK_LOW_THRESHOLD_MS_KEY)); | ||
| assertEquals(String.format("expect %s is not configured", | ||
| DFS_DATANODE_MAX_SLOWDISKS_TO_EXCLUDE_KEY), null, |
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@dingshun3016 Thank you very much for your contribution, but we need to fix some checkstyle issues. |
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@slfan1989 Thank you for your review，I have fixed it. |
cnauroth
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Dec 1, 2022
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@cnauroth @slfan1989 could you please merge this PR? Thanks. |
@dingshun3016 Can we rebase again? Let's see the compilation result of jenkins. |
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tomscut
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Dec 5, 2022
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slfan1989
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Dec 7, 2022
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Thanks @dingshun3016 for your contribution! Thanks @cnauroth and @slfan1989 for your review! |
slfan1989
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Dec 20, 2022
Reviewed-by: Chris Nauroth <[email protected]> Reviewed-by: slfan1989 <[email protected]> Signed-off-by: Tao Li <[email protected]>
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JIRA: HDFS-16858.
In large clusters, rolling restart datanodes takes long time. We can make slow disks parameters in datanode reconfigurable to facilitate cluster operation and maintenance. Some parameters related to slow disks have been supported in HDFS-16397. Reconfig slow disk parameters for datanode, but I found that there are still some parameters that need