| Debug Level
(debug-level)
|
Sets a logging level for debugging
the project, ranging from 0 to 7. The default level is 3. Each
number represents the following:- 0: LOG_EMERG - system is unusable
- 1: LOG_ALERT - action must be taken
immediately
- 2: LOG_CRIT - critical conditions
- 3: LOG_ERR - error conditions
- 4: LOG_WARNING - warning conditions
- 5: LOG_NORMAL - normal but significant
conditions
- 6: LOG_INFO - informational
- 7: LOG_DEBUG - debug level messages
|
| Performance Monitor Refresh
Interval (time-granularity)
|
Defines the performance monitor
refresh interval, or time granularity, within the project. This
option specifies, in seconds, how often the set of performance
records—one per stream and one per gateway connection—is obtained
from the running Event Stream Processor. By default, the performance
monitor refresh interval is set to 5. Set this option to 0 to
disable monitoring; this also optimizes performance. |
| Java Classpath |
Sets the Java classpath. Value is
the path to the classpath file. |
| Java Max
Heap (java-max-heap)
|
Sets the max Java heap for the
project. Default value is 256 megabytes. |
| Bad Record File
(bad-record-file)
|
Saves bad records to a file that you
specify. When this option is omitted (the default), bad
records are discarded. Default file name is
esp_bad_record_file.
If the value is a file name with no path,
ESP places the file in a
default location:
<base-directory>/<workspace-name>.<project-name>.<instance-number>
where
<base-directory> is a property
defined in the cluster configuration file: - In the local (Studio) cluster:
ESP_HOME/studio/clustercfg/localnode.xml
- In a remote cluster:
ESP_HOME/cluster/nodes/<node-name>/<node-name>.xml
|
| Utf8 |
Enables Utf8 functionality on the
server. Default value is true; set to false to disable. |
| Web Service Enabled |
When this value is set to true,
it enables project access to Web services so that Web services
clients can connect to the ESP Web Services Provider. This
connection allows access to project data and can be used to publish
data to project streams and windows. Default value is false.
|
| Optimize |
Suppresses redundant store
updates. For example, when set to true, you don't receive output if
a window gets updates for a key but the window's column value does
not change. You receive output only when the column value changes.
When set to false, you receive output with every update regardless
of whether the column value changes. Default value is true. |
| On Error Discard Record |
If set to true, the record being
computed is discarded when a computation failure occurs. If set to
false, any uncomputed columns are null-padded and record processing
continues. The default value is true. Note: If the
computation of a key column fails, the record will be discarded
regardless of this option.
|
| On Error Log |
If set to true, any computation
errors that occur will be logged in the error message. The default
value is true. |
| Time Interval |
Sets the constant interval
expression that specifies the maximum age of rows in a window, in
seconds. Default value is 1. |
| Precision |
Sets decimal display
characteristics for number characters in the project. Default value
is 6. |
| Memory |
Sets memory usage limits for the
project in megabytes. Default is 0, meaning unlimited. |
| Command Port |
Sets an explicit command port
number. Change the value if you need to expose the port outside the
firewall. Otherwise, do not modify this value. If you set an explicit command port, ensure that port is
available on all machines that can run the project.
If the port is 0, the program selects an
arbitrary port.
To define a specific port, set a value
between 1 and 65535. Default value is 65535. |
| SQL Port |
Sets an explicit SQL port number.
Change the value if you need to expose the port outside the
firewall. Otherwise, do not modify this value. If you set an explicit SQL port, ensure that port is available
on all machines that can run the project.
If the port is 0, the program selects an arbitrary port.
To
define a specific port, set a value between 1 and 65535. Default
value is 65534. |
| Gateway Port |
Sets an explicit gateway port
number. Change the value if you need to expose the port outside the
firewall. Otherwise, do not modify this value. If you set an explicit gateway port, ensure that port is
available on all machines that can run the project.
If the port is 0, the program selects an
arbitrary port.
To define a specific port, set a value
between 1 and 65535. Default value is 65533. |
| Consistent Recovery |
If set to true, the project runs
in consistent recovery mode. Any window that you have assigned to a
log store will be recoverable to the last checkpointed state.
Related windows do not have to be assigned to a single log store
because checkpointing of multiple log stores is done together. If
the server or connection fails in the middle of checkpointing a log
store, the server restarts the project at the last successful
checkpointed state. If you are not using log
stores, consistent recovery mode does not take effect.
Defaults: - For new projects created in Studio: True
- For existing projects: False
|
| Auto Checkpoint |
Sets the maximum number of input
transactions, across all input streams and windows, that will be
processed before the server issues a checkpoint. A checkpoint may
occur before the maximum number of transactions if the server deems
it necessary, or if the server is in conistent recovery mode and the
publisher issues a commit. If you are not using log stores, Auto
Checkpoint does not take effect. When you use Auto Checkpoint
without consistent recovery mode, if the server fails in the
middle of checkpointing a log store, the server does not roll
back to the last successful checkpointed state on restart.
If you set the value to 1, a checkpoint
is done after every input transaction. This means that only the
last record (which would not be completely processed and
checkpointed) has the potential of not being recovered.
If you set the value higher than 1, you have
the potential for higher data loss, but will have better system
performance.
If you set the value to 0,
Auto Checkpoint is not activated. Checkpoints occur only as the
server determines, or if a publisher issues a commit.
Default value is 0 (Auto Checkpoint
disabled).
|
| Meta Store Size |
In order to persist state across
server restarts, the server creates a metadata log store. This store
holds the information (tracked by the ESP_GD_Sessions metadata
stream) regarding the amount of data each guaranteed delivery
subscriber for this project has read for a given stream. Default
store size is 64 MB. |
| Meta Store Directory |
You can change the location of
the metadata log store. The default location is a subdirectory of
the project working directory: ESP_HOME/cluster/projects/<cluster-name>/<workspace-name>.<project-name>.<instance-number>/esp_metadata
The esp_metadata directory must be located on a
shared disk accessible to all nodes in the cluster.
|