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HBASE-18275 Formatting and grammar mistakes in schemadoc chapter (Artem Ervits)

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tedyu 2017-06-27 19:18:02 -07:00
parent 8da6f069c3
commit b313043542
1 changed files with 2 additions and 2 deletions
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src/main/asciidoc/_chapters/schema_design.adoc
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@ -748,7 +748,7 @@ This approach would be useful if scanning by hostname was a priority.
[[schema.casestudies.log_timeseries.revts]] [[schema.casestudies.log_timeseries.revts]]
==== Timestamp, or Reverse Timestamp? ==== Timestamp, or Reverse Timestamp?
If the most important access path is to pull most recent events, then storing the timestamps as reverse-timestamps (e.g., `timestamp = Long.MAX_VALUE – timestamp`) will create the property of being able to do a Scan on `[hostname][log-event]` to obtain the quickly obtain the most recently captured events. If the most important access path is to pull most recent events, then storing the timestamps as reverse-timestamps (e.g., `timestamp = Long.MAX_VALUE – timestamp`) will create the property of being able to do a Scan on `[hostname][log-event]` to obtain the most recently captured events.
Neither approach is wrong, it just depends on what is most appropriate for the situation. Neither approach is wrong, it just depends on what is most appropriate for the situation.
@ -1152,7 +1152,7 @@ Detect regionserver failure as fast as reasonable. Set the following parameters:
- `dfs.client.read.shortcircuit = true` - `dfs.client.read.shortcircuit = true`
- `dfs.client.read.shortcircuit.buffer.size = 131072` (Important to avoid OOME) - `dfs.client.read.shortcircuit.buffer.size = 131072` (Important to avoid OOME)
* Ensure data locality. In `hbase-site.xml`, set `hbase.hstore.min.locality.to.skip.major.compact = 0.7` (Meaning that 0.7 \<= n \<= 1) * Ensure data locality. In `hbase-site.xml`, set `hbase.hstore.min.locality.to.skip.major.compact = 0.7` (Meaning that 0.7 \<= n \<= 1)
* Make sure DataNodes have enough handlers for block transfers. In `hdfs-site`.xml``, set the following parameters: * Make sure DataNodes have enough handlers for block transfers. In `hdfs-site.xml`, set the following parameters:
- `dfs.datanode.max.xcievers >= 8192` - `dfs.datanode.max.xcievers >= 8192`
- `dfs.datanode.handler.count =` number of spindles - `dfs.datanode.handler.count =` number of spindles