| Type: | true | false |
| Default: | false |
Description: When hdfs-append-enabled is set to true, syslog-ng PE will append new data to the end of an already existing HDFS file. Note that in this case, archiving is automatically disabled, and syslog-ng PE will ignore the hdfs-archive-dir option.
When hdfs-append-enabled is set to false, the syslog-ng PE application always creates a new file if the previous has been closed. In that case, appending data to existing files is not supported.
When you choose to write data into an existing file, syslog-ng PE does not extend the filename with a UUID suffix because there is no need to open a new file (a new unique ID would mean opening a new file and writing data into that).
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Caution:
Before enabling the hdfs-append-enabled option, ensure that your HDFS server supports the append operation and that it is enabled. Otherwise syslog-ng PE will not be able to append data into an existing file, resulting in an error log. |
