[1/2] hbase git commit: HBASE-19068 Change all url of apache.org from HTTP to HTTPS in HBase book
Repository: hbase Updated Branches: refs/heads/master 125f3eace -> 8e0571a3a http://git-wip-us.apache.org/repos/asf/hbase/blob/8e0571a3/src/main/asciidoc/_chapters/performance.adoc -- diff --git a/src/main/asciidoc/_chapters/performance.adoc b/src/main/asciidoc/_chapters/performance.adoc index f1d89b5..c917646 100644 --- a/src/main/asciidoc/_chapters/performance.adoc +++ b/src/main/asciidoc/_chapters/performance.adoc @@ -320,7 +320,7 @@ See also <> for compression caveats. [[schema.regionsize]] === Table RegionSize -The regionsize can be set on a per-table basis via `setFileSize` on link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor] in the event where certain tables require different regionsizes than the configured default regionsize. +The regionsize can be set on a per-table basis via `setFileSize` on link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor] in the event where certain tables require different regionsizes than the configured default regionsize. See <> for more information. @@ -372,7 +372,7 @@ Bloom filters are enabled on a Column Family. You can do this by using the setBloomFilterType method of HColumnDescriptor or using the HBase API. Valid values are `NONE`, `ROW` (default), or `ROWCOL`. See <> for more information on `ROW` versus `ROWCOL`. -See also the API documentation for link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor]. +See also the API documentation for link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor]. The following example creates a table and enables a ROWCOL Bloom filter on the `colfam1` column family. @@ -431,7 +431,7 @@ The blocksize can be configured for each ColumnFamily in a table, and defaults t Larger cell values require larger blocksizes. There is an inverse relationship between blocksize and the resulting StoreFile indexes (i.e., if the blocksize is doubled then the resulting indexes should be roughly halved). -See link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] and <>for more information. +See link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] and <>for more information. [[cf.in.memory]] === In-Memory ColumnFamilies @@ -440,7 +440,7 @@ ColumnFamilies can optionally be defined as in-memory. Data is still persisted to disk, just like any other ColumnFamily. In-memory blocks have the highest priority in the <>, but it is not a guarantee that the entire table will be in memory. -See link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] for more information. +See link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] for more information. [[perf.compression]] === Compression @@ -549,7 +549,7 @@ If deferred log flush is used, WAL edits are kept in memory until the flush peri The benefit is aggregated and asynchronous `WAL`- writes, but the potential downside is that if the RegionServer goes down the yet-to-be-flushed edits are lost. This is safer, however, than not using WAL at all with Puts. -Deferred log flush can be configured on tables via link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor]. +Deferred log flush can be configured on tables via link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor]. The default value of `hbase.regionserver.optionallogflushinterval` is 1000ms. [[perf.hbase.client.putwal]] @@ -574,7 +574,7 @@ There is a utility `HTableUtil` currently on MASTER that does this, but you can [[perf.hbase.write.mr.reducer]] === MapReduce: Skip The Reducer -When writing a lot of data to an HBase table from a MR job (e.g., with link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.html[TableOutputFormat]), and specifically where Puts are being emitted from the Mapper, skip the Reducer step. +When writing a lot of data to an HBase table from a MR job (e.g., with link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.html[TableOutputFormat]), and specifically where Puts are being emitted from the Mapper, skip the Reducer step. When a Reducer step is used, all of the output (Puts) from the Mapper will get spooled to disk, then sorted/shuffled to other Reducers that will most likely be off-node. It's far more efficient to just write directly to HBase. @@ -600,7 +600,7 @@ For example, here is a good general thread on what to look at addressing read-ti [[perf.hbase.client.caching]] === Scan Caching -If HBase is used as an input source for a MapRe
[1/2] hbase git commit: HBASE-19068 Change all url of apache.org from HTTP to HTTPS in HBase book
Repository: hbase Updated Branches: refs/heads/branch-2 811b88a87 -> a9e0ae6df http://git-wip-us.apache.org/repos/asf/hbase/blob/a9e0ae6d/src/main/asciidoc/_chapters/performance.adoc -- diff --git a/src/main/asciidoc/_chapters/performance.adoc b/src/main/asciidoc/_chapters/performance.adoc index f1d89b5..c917646 100644 --- a/src/main/asciidoc/_chapters/performance.adoc +++ b/src/main/asciidoc/_chapters/performance.adoc @@ -320,7 +320,7 @@ See also <> for compression caveats. [[schema.regionsize]] === Table RegionSize -The regionsize can be set on a per-table basis via `setFileSize` on link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor] in the event where certain tables require different regionsizes than the configured default regionsize. +The regionsize can be set on a per-table basis via `setFileSize` on link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor] in the event where certain tables require different regionsizes than the configured default regionsize. See <> for more information. @@ -372,7 +372,7 @@ Bloom filters are enabled on a Column Family. You can do this by using the setBloomFilterType method of HColumnDescriptor or using the HBase API. Valid values are `NONE`, `ROW` (default), or `ROWCOL`. See <> for more information on `ROW` versus `ROWCOL`. -See also the API documentation for link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor]. +See also the API documentation for link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor]. The following example creates a table and enables a ROWCOL Bloom filter on the `colfam1` column family. @@ -431,7 +431,7 @@ The blocksize can be configured for each ColumnFamily in a table, and defaults t Larger cell values require larger blocksizes. There is an inverse relationship between blocksize and the resulting StoreFile indexes (i.e., if the blocksize is doubled then the resulting indexes should be roughly halved). -See link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] and <>for more information. +See link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] and <>for more information. [[cf.in.memory]] === In-Memory ColumnFamilies @@ -440,7 +440,7 @@ ColumnFamilies can optionally be defined as in-memory. Data is still persisted to disk, just like any other ColumnFamily. In-memory blocks have the highest priority in the <>, but it is not a guarantee that the entire table will be in memory. -See link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] for more information. +See link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HColumnDescriptor.html[HColumnDescriptor] for more information. [[perf.compression]] === Compression @@ -549,7 +549,7 @@ If deferred log flush is used, WAL edits are kept in memory until the flush peri The benefit is aggregated and asynchronous `WAL`- writes, but the potential downside is that if the RegionServer goes down the yet-to-be-flushed edits are lost. This is safer, however, than not using WAL at all with Puts. -Deferred log flush can be configured on tables via link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor]. +Deferred log flush can be configured on tables via link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/HTableDescriptor.html[HTableDescriptor]. The default value of `hbase.regionserver.optionallogflushinterval` is 1000ms. [[perf.hbase.client.putwal]] @@ -574,7 +574,7 @@ There is a utility `HTableUtil` currently on MASTER that does this, but you can [[perf.hbase.write.mr.reducer]] === MapReduce: Skip The Reducer -When writing a lot of data to an HBase table from a MR job (e.g., with link:http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.html[TableOutputFormat]), and specifically where Puts are being emitted from the Mapper, skip the Reducer step. +When writing a lot of data to an HBase table from a MR job (e.g., with link:https://hbase.apache.org/apidocs/org/apache/hadoop/hbase/mapreduce/TableOutputFormat.html[TableOutputFormat]), and specifically where Puts are being emitted from the Mapper, skip the Reducer step. When a Reducer step is used, all of the output (Puts) from the Mapper will get spooled to disk, then sorted/shuffled to other Reducers that will most likely be off-node. It's far more efficient to just write directly to HBase. @@ -600,7 +600,7 @@ For example, here is a good general thread on what to look at addressing read-ti [[perf.hbase.client.caching]] === Scan Caching -If HBase is used as an input source for a Map
