content/api/java/org/apache/heron/common/config/SystemConfigKey.html - incubator-heron - Git at Google

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 <div class="subTitle"><span class="packageLabelInType">Package</span>&nbsp;<a href="package-summary.html">org.apache.heron.common.config</a></div>
 <h2 title="Enum SystemConfigKey" class="title">Enum SystemConfigKey</h2>
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 <pre>public enum <span class="typeNameLabel">SystemConfigKey</span>
 extends java.lang.Enum&lt;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a>&gt;</pre>
 <div class="block">Keys to be used in the SystemConfigs</div>
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 <td class="colFirst"><code>static class&nbsp;</code></td>
 <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="SystemConfigKey.Type.html" title="enum in org.apache.heron.common.config">SystemConfigKey.Type</a></span></code></th>
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 <tr>
 <th class="colFirst" scope="col">Enum Constant</th>
 <th class="colLast" scope="col">Description</th>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_LOGGING_DIRECTORY">HERON_LOGGING_DIRECTORY</a></span></code></th>
 <td class="colLast">
 <div class="block">The relative path to the logging directory</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_LOGGING_ERR_THRESHOLD">HERON_LOGGING_ERR_THRESHOLD</a></span></code></th>
 <td class="colLast">
 <div class="block">The threshold level to log error</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_LOGGING_MAXIMUM_FILES">HERON_LOGGING_MAXIMUM_FILES</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum number of log files</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_LOGGING_MAXIMUM_SIZE_MB">HERON_LOGGING_MAXIMUM_SIZE_MB</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum log file size in MB</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_METRICS_EXPORT_INTERVAL">HERON_METRICS_EXPORT_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">The interval in seconds to get and reset the system metrics.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#HERON_METRICS_MAX_EXCEPTIONS_PER_MESSAGE_COUNT">HERON_METRICS_MAX_EXCEPTIONS_PER_MESSAGE_COUNT</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum number of exceptions in one MetricPublisherPublishMessage protobuf</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_ACK_BATCH_TIME">INSTANCE_ACK_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum time in ms for an spout to do acknowledgement per attempt</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_ACKNOWLEDGEMENT_NBUCKETS">INSTANCE_ACKNOWLEDGEMENT_NBUCKETS</a></span></code></th>
 <td class="colLast">
 <div class="block">The lookForTimeout Interval in spout instance will be timeoutInSeconds / NBUCKETS
  For instance, if a tuple's timeout is 30s, and NBUCKETS is 10
  The spout instance will check whether there are timeout tuples every 3 seconds</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_EMIT_BATCH_SIZE">INSTANCE_EMIT_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum batch size in bytes for an spout instance to emit tuples per attempt</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_EMIT_BATCH_TIME">INSTANCE_EMIT_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum time in ms for an spout instance to emit tuples per attempt</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_EXECUTE_BATCH_SIZE">INSTANCE_EXECUTE_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum batch size in bytes for an bolt instance to execute tuples per attempt</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_EXECUTE_BATCH_TIME">INSTANCE_EXECUTE_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum time in ms for an bolt instance to execute tuples per attempt</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_FORCE_EXIT_TIMEOUT">INSTANCE_FORCE_EXIT_TIMEOUT</a></span></code></th>
 <td class="colLast">
 <div class="block">The time to wait before the instance exits forcibly when uncaught exception happens</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_INTERNAL_BOLT_READ_QUEUE_CAPACITY">INSTANCE_INTERNAL_BOLT_READ_QUEUE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The queue capacity (num of items) in bolt for buffer packets to read from stream manager</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_INTERNAL_BOLT_WRITE_QUEUE_CAPACITY">INSTANCE_INTERNAL_BOLT_WRITE_QUEUE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The queue capacity (num of items) in bolt for buffer packets to write to stream manager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_INTERNAL_METRICS_WRITE_QUEUE_CAPACITY">INSTANCE_INTERNAL_METRICS_WRITE_QUEUE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The queue capacity (num of items) for metrics packets to write to metrics manager</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_INTERNAL_SPOUT_READ_QUEUE_CAPACITY">INSTANCE_INTERNAL_SPOUT_READ_QUEUE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The queue capacity (num of items) in spout for buffer packets to read from stream manager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_INTERNAL_SPOUT_WRITE_QUEUE_CAPACITY">INSTANCE_INTERNAL_SPOUT_WRITE_QUEUE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The queue capacity (num of items) in spout for buffer packets to write to stream manager</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_METRICS_SYSTEM_SAMPLE_INTERVAL">INSTANCE_METRICS_SYSTEM_SAMPLE_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">The interval in seconds to sample a system metric, for instance, JVM used memory.</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_OPTIONS_MAXIMUM_PACKETSIZE_BYTES">INSTANCE_NETWORK_OPTIONS_MAXIMUM_PACKETSIZE_BYTES</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum size of heron packet that's allowed by the instance</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_OPTIONS_SOCKET_RECEIVED_BUFFER_SIZE">INSTANCE_NETWORK_OPTIONS_SOCKET_RECEIVED_BUFFER_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block"># The maximum socket's received buffer size in bytes of instance's network options</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_OPTIONS_SOCKET_SEND_BUFFER_SIZE">INSTANCE_NETWORK_OPTIONS_SOCKET_SEND_BUFFER_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum socket's send buffer size in bytes</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_READ_BATCH_SIZE">INSTANCE_NETWORK_READ_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">Size based,the maximum batch size in bytes to read from stream manager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_READ_BATCH_TIME">INSTANCE_NETWORK_READ_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">Time based, the maximum batch time in ms for instance to read from stream manager per attempt</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_WRITE_BATCH_SIZE">INSTANCE_NETWORK_WRITE_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">Size based, the maximum batch size in bytes to write to stream manager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_NETWORK_WRITE_BATCH_TIME">INSTANCE_NETWORK_WRITE_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">Time based, the maximum batch time in ms for instance to read from stream manager per attempt</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_RECONNECT_METRICSMGR_INTERVAL">INSTANCE_RECONNECT_METRICSMGR_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Interval in seconds to reconnect to the metrics manager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_RECONNECT_STREAMMGR_INTERVAL">INSTANCE_RECONNECT_STREAMMGR_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Interval in seconds to reconnect to the stream manager</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_SET_CONTROL_TUPLE_CAPACITY">INSTANCE_SET_CONTROL_TUPLE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum # of control tuple to batch in a HeronControlTupleSet protobuf</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_SET_DATA_TUPLE_CAPACITY">INSTANCE_SET_DATA_TUPLE_CAPACITY</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum # of data tuple to batch in a HeronDataTupleSet protobuf</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_SET_DATA_TUPLE_SIZE">INSTANCE_SET_DATA_TUPLE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum size in bytes of data tuple to batch in a HeronDataTupleSet protobuf</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_CURRENT_SAMPLE_WEIGHT">INSTANCE_TUNING_CURRENT_SAMPLE_WEIGHT</a></span></code></th>
 <td class="colLast">
 <div class="block">During dynamically tuning, the weight of new sample size to calculate
  the available capacity of queue.</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_EXPECTED_BOLT_READ_QUEUE_SIZE">INSTANCE_TUNING_EXPECTED_BOLT_READ_QUEUE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The expected size on read queue in bolt</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_EXPECTED_BOLT_WRITE_QUEUE_SIZE">INSTANCE_TUNING_EXPECTED_BOLT_WRITE_QUEUE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The expected size on write queue in bolt</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_EXPECTED_METRICS_WRITE_QUEUE_SIZE">INSTANCE_TUNING_EXPECTED_METRICS_WRITE_QUEUE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The expected size on metrics write queue</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_EXPECTED_SPOUT_READ_QUEUE_SIZE">INSTANCE_TUNING_EXPECTED_SPOUT_READ_QUEUE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The expected size on read queue in spout</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_EXPECTED_SPOUT_WRITE_QUEUE_SIZE">INSTANCE_TUNING_EXPECTED_SPOUT_WRITE_QUEUE_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The exepected size on write queue in spout</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#INSTANCE_TUNING_INTERVAL">INSTANCE_TUNING_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">Interval in ms to tune the size of in &amp; out data queue in instance</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_OPTIONS_MAXIMUM_PACKETSIZE_BYTES">METRICSMGR_NETWORK_OPTIONS_MAXIMUM_PACKETSIZE_BYTES</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum size of heron packet that's allowed by the instance</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_OPTIONS_SOCKET_RECEIVED_BUFFER_SIZE">METRICSMGR_NETWORK_OPTIONS_SOCKET_RECEIVED_BUFFER_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum socket's received buffer size in bytes</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_OPTIONS_SOCKET_SEND_BUFFER_SIZE">METRICSMGR_NETWORK_OPTIONS_SOCKET_SEND_BUFFER_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum socket's send buffer size in bytes</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_READ_BATCH_SIZE">METRICSMGR_NETWORK_READ_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">Size based,the maximum batch size in bytes to read from socket</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_READ_BATCH_TIME">METRICSMGR_NETWORK_READ_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">The size of packets read from socket will be determined by the minimal of:
  (a) time based (b) size based</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_WRITE_BATCH_SIZE">METRICSMGR_NETWORK_WRITE_BATCH_SIZE</a></span></code></th>
 <td class="colLast">
 <div class="block">Size based, the maximum batch size in bytes to write to socket</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#METRICSMGR_NETWORK_WRITE_BATCH_TIME">METRICSMGR_NETWORK_WRITE_BATCH_TIME</a></span></code></th>
 <td class="colLast">
 <div class="block">The size of packets written to socket will be determined by the minimal of
  (a) time based (b) size based</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#TMANAGER_METRICS_COLLECTOR_MAXIMUM_EXCEPTION">TMANAGER_METRICS_COLLECTOR_MAXIMUM_EXCEPTION</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum exception count be kept in tmanager</div>
 </td>
 </tr>
 <tr class="altColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#TMANAGER_METRICS_COLLECTOR_MAXIMUM_INTERVAL">TMANAGER_METRICS_COLLECTOR_MAXIMUM_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">The maximum interval in minutes of metrics to be kept in tmanager</div>
 </td>
 </tr>
 <tr class="rowColor">
 <th class="colFirst" scope="row"><code><span class="memberNameLink"><a href="#TMANAGER_METRICS_COLLECTOR_PURGE_INTERVAL">TMANAGER_METRICS_COLLECTOR_PURGE_INTERVAL</a></span></code></th>
 <td class="colLast">
 <div class="block">The interval for tmanager to purge metrics from socket</div>
 </td>
 </tr>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> METRICSMGR_NETWORK_WRITE_BATCH_SIZE</pre>
 <div class="block">Size based, the maximum batch size in bytes to write to socket</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> METRICSMGR_NETWORK_OPTIONS_SOCKET_RECEIVED_BUFFER_SIZE</pre>
 <div class="block">The maximum socket's received buffer size in bytes</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> METRICSMGR_NETWORK_OPTIONS_SOCKET_SEND_BUFFER_SIZE</pre>
 <div class="block">The maximum socket's send buffer size in bytes</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> METRICSMGR_NETWORK_OPTIONS_MAXIMUM_PACKETSIZE_BYTES</pre>
 <div class="block">The maximum size of heron packet that's allowed by the instance</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> TMANAGER_METRICS_COLLECTOR_MAXIMUM_EXCEPTION</pre>
 <div class="block">The maximum exception count be kept in tmanager</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> TMANAGER_METRICS_COLLECTOR_MAXIMUM_INTERVAL</pre>
 <div class="block">The maximum interval in minutes of metrics to be kept in tmanager</div>
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 <pre>public static final&nbsp;<a href="SystemConfigKey.html" title="enum in org.apache.heron.common.config">SystemConfigKey</a> TMANAGER_METRICS_COLLECTOR_PURGE_INTERVAL</pre>
 <div class="block">The interval for tmanager to purge metrics from socket</div>
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 <div class="block">Returns an array containing the constants of this enum type, in
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 for (SystemConfigKey c : SystemConfigKey.values())
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