deb-sahara/sahara/plugins/cdh/v5_3_0/resources/hbase-regionserver.json

[
    {
        "desc": "For advanced use only, a string to be inserted into <strong>hbase-site.xml</strong> for this role only.",
        "display_name": "RegionServer Advanced Configuration Snippet (Safety Valve) for hbase-site.xml",
        "name": "hbase_regionserver_config_safety_valve",
        "value": null
    },
    {
        "desc": "Whether or not periodic stacks collection is enabled.",
        "display_name": "Stacks Collection Enabled",
        "name": "stacks_collection_enabled",
        "value": "false"
    },
    {
        "desc": "Maximum number of HStoreFiles to compact per minor compaction.",
        "display_name": "Maximum Number of HStoreFiles Compaction",
        "name": "hbase_hstore_compaction_max",
        "value": null
    },
    {
        "desc": "The address for the HBase RegionServer web UI",
        "display_name": "HBase RegionServer Web UI Address",
        "name": "hbase_regionserver_info_bindAddress",
        "value": null
    },
    {
        "desc": "The method that will be used to collect stacks. The jstack option involves periodically running the jstack command against the role's daemon process. The servlet method is available for those roles that have an HTTP server endpoint exposing the current stacks traces of all threads. When the servlet method is selected that HTTP endpoint is periodically scraped.",
        "display_name": "Stacks Collection Method",
        "name": "stacks_collection_method",
        "value": "jstack"
    },
    {
        "desc": "Number of threads to use while loading and unloading regions to or from a RegionServer. Can be used to increase the speed of decommissioning or rolling restart operations.",
        "display_name": "Region Mover Threads",
        "name": "hbase_regionserver_regionmover_thread_count",
        "value": "1"
    },
    {
        "desc": "The health test thresholds of the average size of the HBase RegionServer flush queue over a recent period. See HBase RegionServer Flush Queue Monitoring Period.",
        "display_name": "HBase RegionServer Flush Queue Monitoring Thresholds",
        "name": "regionserver_flush_queue_thresholds",
        "value": "{\"critical\":\"never\",\"warning\":\"10.0\"}"
    },
    {
        "desc": "The amount of time to wait for the HBase Region Server to fully start up and connect to the HBase Master before enforcing the connectivity check.",
        "display_name": "HBase Region Server Connectivity Tolerance at Startup",
        "name": "regionserver_connectivity_tolerance",
        "value": "180"
    },
    {
        "desc": "The hashing algorithm for use in HashFunction. Two values are supported: 'murmur' (for MurmurHash) and 'jenkins' (for JenkinsHash).",
        "display_name": "HBase Hash Type",
        "name": "hbase_hash_type",
        "value": "murmur"
    },
    {
        "desc": "The port for the HBase RegionServer web UI. Set to -1 to disable RegionServer web UI.",
        "display_name": "HBase RegionServer Web UI port",
        "name": "hbase_regionserver_info_port",
        "value": "60030"
    },
    {
        "desc": "The period to review when computing unexpected exits.",
        "display_name": "Unexpected Exits Monitoring Period",
        "name": "unexpected_exits_window",
        "value": "5"
    },
    {
        "desc": "When memstores are being forced to flush to make room in memory, keep flushing until this amount is reached. If this amount is equal to 'hbase.regionserver.global.memstore.upperLimit', then minimum possible flushing will occur when updates are blocked due to memstore limiting.",
        "display_name": "Low Watermark for Memstore Flush",
        "name": "hbase_regionserver_global_memstore_lowerLimit",
        "value": "0.38"
    },
    {
        "desc": "These arguments will be passed as part of the Java command line. Commonly, garbage collection flags or extra debugging flags would be passed here.",
        "display_name": "Java Configuration Options for HBase RegionServer",
        "name": "hbase_regionserver_java_opts",
        "value": "-XX:+UseParNewGC -XX:+UseConcMarkSweepGC -XX:-CMSConcurrentMTEnabled -XX:CMSInitiatingOccupancyFraction=70 -XX:+CMSParallelRemarkEnabled"
    },
    {
        "desc": "For advanced use only, a string to be inserted into <strong>log4j.properties</strong> for this role only.",
        "display_name": "RegionServer Logging Advanced Configuration Snippet (Safety Valve)",
        "name": "log4j_safety_valve",
        "value": null
    },
    {
        "desc": "The health test thresholds of the latency that the RegionServer sees for HDFS read operations",
        "display_name": "HBase RegionServer HDFS Read Latency Thresholds",
        "name": "regionserver_read_latency_thresholds",
        "value": "{\"critical\":\"100.0\",\"warning\":\"50.0\"}"
    },
    {
        "desc": "When set, Cloudera Manager will send alerts when the health of this role reaches the threshold specified by the EventServer setting eventserver_health_events_alert_threshold",
        "display_name": "Enable Health Alerts for this Role",
        "name": "enable_alerts",
        "value": "true"
    },
    {
        "desc": "When set, generates heap dump file when java.lang.OutOfMemoryError is thrown.",
        "display_name": "Dump Heap When Out of Memory",
        "name": "oom_heap_dump_enabled",
        "value": "false"
    },
    {
        "desc": "The health test thresholds of the size used by the HStoreFile index. Specified as a percentage of the total heap size.",
        "display_name": "Percentage of Heap Used by HStoreFile Index",
        "name": "regionserver_store_file_idx_size_thresholds",
        "value": "{\"critical\":\"never\",\"warning\":\"10.0\"}"
    },
    {
        "desc": "Maximum number of Write-Ahead Log (WAL) files. This value multiplied by HDFS Block Size (dfs.blocksize) is the size of the WAL that will need to be replayed when a server crashes. This value is inversely proportional to the frequency of flushes to disk.",
        "display_name": "Maximum number of Write-Ahead Log (WAL) files",
        "name": "hbase_regionserver_maxlogs",
        "value": "32"
    },
    {
        "desc": "List of coprocessors that are loaded by default on all tables. For any override coprocessor method, these classes will be called in order. After implementing your own coprocessor, just put it in HBase's classpath and add the fully qualified class name here. A coprocessor can also be loaded on demand by setting HTableDescriptor.",
        "display_name": "HBase Coprocessor Region Classes",
        "name": "hbase_coprocessor_region_classes",
        "value": ""
    },
    {
        "desc": "The health test thresholds for the weighted average time spent in Java garbage collection. Specified as a percentage of elapsed wall clock time.",
        "display_name": "Garbage Collection Duration Thresholds",
        "name": "regionserver_gc_duration_thresholds",
        "value": "{\"critical\":\"60.0\",\"warning\":\"30.0\"}"
    },
    {
        "desc": "Blocks writes if the size of the memstore increases to the value of 'hbase.hregion.block.memstore' multiplied by the value of 'hbase.hregion.flush.size' bytes. This setting is useful for preventing runaway memstore during spikes in update traffic. Without an upper-bound, memstore fills such that when it flushes, the resultant process of flushing files take a long time to compact or split, or worse, an \"out of memory\" error occurs.",
        "display_name": "HBase Memstore Block Multiplier",
        "name": "hbase_hregion_memstore_block_multiplier",
        "value": "2"
    },
    {
        "desc": "Sync the HLog to HDFS after this interval, in milliseconds, if it has not accumulated the number of HLog Entries specified to trigger a sync.",
        "display_name": "Synch Interval of HLog Entries",
        "name": "hbase_regionserver_optionallogflushinterval",
        "value": "1000"
    },
    {
        "desc": "The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory. Specified as a percentage of the capacity on that filesystem. This setting is not used if a Log Directory Free Space Monitoring Absolute Thresholds setting is configured.",
        "display_name": "Log Directory Free Space Monitoring Percentage Thresholds",
        "name": "log_directory_free_space_percentage_thresholds",
        "value": "{\"critical\":\"never\",\"warning\":\"never\"}"
    },
    {
        "desc": "<p>This file contains the rules which govern how log messages are turned into events by the custom log4j appender that this role loads. It is in JSON format, and is composed of a list of rules. Every log message is evaluated against each of these rules in turn to decide whether or not to send an event for that message.</p><p>Each rule has some or all of the following fields:</p><ul><li><span class='code'>alert</span> - whether or not events generated from this rule should be promoted to alerts. A value of \"true\" will cause alerts to be generated. If not specified, the default is \"false\".</li><li><span class='code'>rate</span> <strong>(mandatory)</strong> - the maximum number of log messages matching this rule that may be sent as events every minute. If more than <tt>rate</tt> matching log messages are received in a single minute, the extra messages are ignored. If rate is less than 0, the number of messages per minute is unlimited.</li><li><span class='code'>periodminutes</span>  - the number of minutes during which the publisher will only publish <tt>rate</tt> events or fewer. If not specified, the default is <strong>one minute</strong></li><li><span class='code'>threshold</span> - apply this rule only to messages with this log4j severity level or above. An example is \"WARN\" for warning level messages or higher.</li><li><span class='code'>content</span> - match only those messages whose contents match this regular expression.</li><li><span class='code'>exceptiontype</span> - match only those messages which are part of an exception message. The exception type must match this regular expression.</li></ul><br/><p>Example:<span class='code'>{\"alert\": false, \"rate\": 10, \"exceptiontype\": \"java.lang.StringIndexOutOfBoundsException\"}</span></p><p>This rule will send events to Cloudera Manager for every <span class='code'>StringIndexOutOfBoundsException</span>, up to a maximum of 10 every minute.</p>",
        "display_name": "Rules to Extract Events from Log Files",
        "name": "log_event_whitelist",
        "value": "{\n  \"version\": \"0\",\n  \"rules\": [\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"FATAL\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\": \".* is deprecated. Instead, use .*\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\": \".* is deprecated. Use .* instead\"},\n    {\"alert\": false, \"rate\": 0, \"exceptiontype\": \"java.io.IOException\"},\n    {\"alert\": false, \"rate\": 0, \"exceptiontype\": \"java.net.SocketException\"},\n    {\"alert\": false, \"rate\": 0, \"exceptiontype\": \"java.net.SocketClosedException\"},\n    {\"alert\": false, \"rate\": 0, \"exceptiontype\": \"java.io.EOFException\"},\n    {\"alert\": false, \"rate\": 0, \"exceptiontype\": \"java.nio.channels.CancelledKeyException\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\": \"IPC Server handler.*took.*appending an edit to hlog.*\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"ABORTING region server serverName.*\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"DFSOutputStream ResponseProcessor exception.*\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"Error Recovery for block blk.*\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"Failed init\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"Problem renewing lease for DFSClient.*\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"remote error telling master we are up\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\", \"content\": \"Session.*for server.*closing socket connection and attempting reconnect.\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 2, \"exceptiontype\": \".*\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\":\"Error executing shell command .+ No such process.+\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\":\".*attempt to override final parameter.+\"},\n    {\"alert\": false, \"rate\": 0, \"threshold\":\"WARN\", \"content\":\"[^ ]+ is a deprecated filesystem name. Use.*\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Starting .*compaction on region (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_REGION_STARTED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^completed compaction on region (.+) after (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_REGION_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"DURATION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Starting compaction on (.+) in region (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_COLUMN_FAMILY_STARTED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"COLUMN_FAMILY\", \"group1\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^completed compaction: regionName=(.+), storeName=(.+), fileCount=(.+), fileSize=(.+), priority=(.+), time=(.+); duration=(.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_COLUMN_FAMILY_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"COLUMN_FAMILY\", \"group2\": \"FILE_COUNT\", \"group3\": \"FILE_SIZE\", \"group4\": \"PRIORITY\", \"group5\": \"REQUEST_TIME_NANOS\", \"group6\": \"DURATION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Completed compaction: Request = regionName=(.+), storeName=(.+), fileCount=(.+), fileSize=(.+), priority=(.+), time=(.+); duration=(.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_COLUMN_FAMILY_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"COLUMN_FAMILY\", \"group2\": \"FILE_COUNT\", \"group3\": \"FILE_SIZE\", \"group4\": \"PRIORITY\", \"group5\": \"REQUEST_TIME_NANOS\", \"group6\": \"DURATION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^aborted compaction: regionName=(.+), storeName=(.+), fileCount=(.+), fileSize=(.+), priority=(.+), time=(.+); duration=(.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_COMPACTION_COLUMN_FAMILY_ABORTED\", \"attribute:SEVERITY\": \"IMPORTANT\", \"group0\": \"REGION\", \"group1\": \"COLUMN_FAMILY\", \"group2\": \"FILE_COUNT\", \"group3\": \"FILE_SIZE\", \"group4\": \"PRIORITY\", \"group5\": \"REQUEST_TIME_NANOS\", \"group6\": \"DURATION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Finished memstore flush of .+ for region (.+) in (.+), sequenceid=(.+), compaction requested=(.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_FLUSH_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"DURATION\", \"group2\": \"SEQUENCE_ID\", \"group3\": \"COMPACTION_REQUESTED\" },\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Flush of region (.+) due to global heap pressure$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_FLUSH_DUE_TO_HEAP_PRESSURE\", \"attribute:SEVERITY\": \"IMPORTANT\", \"group0\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"WARN\", \"content\": \"^Region (.+) has too many store files; delaying flush up to 90000ms$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_FLUSH_DELAYED_TOO_MANY_STORE_FILES\", \"attribute:SEVERITY\": \"CRITICAL\", \"group0\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Starting split of region (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_SPLIT_STARTED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Running rollback/cleanup of failed split of (.+);.+$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_SPLIT_ABORTED\", \"attribute:SEVERITY\": \"IMPORTANT\", \"group0\": \"REGION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Region split, hbase:meta updated, and report to master. Parent=(.+), new regions: (.+,.*,.+), (.+,.*,.+). Split took (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_SPLIT_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"DAUGHTER_REGIONS\", \"group2\": \"DAUGHTER_REGIONS\", \"group3\": \"DURATION\"},\n    {\"alert\": false, \"rate\": -1, \"threshold\":\"INFO\", \"content\": \"^Region split, META updated, and report to master. Parent=(.+), new regions: (.+,.*,.+), (.+,.*,.+). Split took (.+)$\", \"attribute:CATEGORY\": \"HBASE\", \"attribute:EVENTCODE\": \"EV_HBASE_SPLIT_COMPLETED\", \"attribute:SEVERITY\": \"INFORMATIONAL\", \"group0\": \"REGION\", \"group1\": \"DAUGHTER_REGIONS\", \"group2\": \"DAUGHTER_REGIONS\", \"group3\": \"DURATION\"},\n    {\"alert\": false, \"rate\": 1, \"periodminutes\": 1, \"threshold\":\"WARN\"}\n  ]\n}"
    },
    {
        "desc": "The host name or IP address of the DNS name server which a RegionServer should use to determine the host name used by the HBase Master for communication and display purposes.",
        "display_name": "RegionServer DNS Nameserver",
        "name": "hbase_regionserver_dns_nameserver",
        "value": null
    },
    {
        "desc": "The health test thresholds of the total size of RegionServer's memstores. Specified as a percentage of the configured upper limit. See Maximum Size of All Memstores in RegionServer.",
        "display_name": "HBase RegionServer Memstore Size Thresholds",
        "name": "regionserver_memstore_size_thresholds",
        "value": "{\"critical\":\"100.0\",\"warning\":\"95.0\"}"
    },
    {
        "desc": "Percentage of maximum heap (-Xmx setting) to allocate to block cache used by HFile/StoreFile. To disable, set this value to 0 .",
        "display_name": "HFile Block Cache Size",
        "name": "hfile_block_cache_size",
        "value": "0.4"
    },
    {
        "desc": "The maximum size, in megabytes, per log file for RegionServer logs.  Typically used by log4j.",
        "display_name": "RegionServer Max Log Size",
        "name": "max_log_size",
        "value": "200"
    },
    {
        "desc": "<p>The configured triggers for this role. This is a JSON formatted list of triggers. These triggers are evaluated as part as the health system. Every trigger expression is parsed, and if the trigger condition is met, the list of actions provided in the trigger expression is executed.</p><p>Each trigger has all of the following fields:</p><ul><li><code>triggerName</code> <strong>(mandatory)</strong> - the name of the trigger. This value must be unique for the specific role. </li><li><code>triggerExpression</code> <strong>(mandatory)</strong> - a tsquery expression representing the trigger. </li><li><code>streamThreshold</code> <strong>(optional)</strong> - the maximum number of streams that can satisfy a condition of a trigger before the condition fires. By default set to 0, and any stream returned causes the condition to fire. </li><li><code>enabled</code> <strong> (optional)</strong> - by default set to 'true'. If set to 'false' the trigger will not be evaluated.</li></ul></p><p>For example, here is a JSON formatted trigger configured for a DataNode that fires if the DataNode has more than 1500 file-descriptors opened:</p><p><pre>[{\"triggerName\": \"sample-trigger\",\n  \"triggerExpression\": \"IF (SELECT fd_open WHERE roleName=$ROLENAME and last(fd_open) > 1500) DO health:bad\",\n  \"streamThreshold\": 0, \"enabled\": \"true\"}]</pre></p><p>Consult the trigger rules documentation for more details on how to write triggers using tsquery.</p><p>The JSON format is evolving and may change in the future and as a result backward compatibility is not guaranteed between releases at this time.</p>",
        "display_name": "Role Triggers",
        "name": "role_triggers",
        "value": "[]"
    },
    {
        "desc": "Memstore will be flushed to disk if size of the memstore exceeds this value in number of bytes. This value is checked by a thread that runs the frequency specified by hbase.server.thread.wakefrequency.",
        "display_name": "HBase Memstore Flush Size",
        "name": "hbase_hregion_memstore_flush_size",
        "value": "134217728"
    },
    {
        "desc": "The HLog file reader implementation.",
        "display_name": "HLog Reader Implementation",
        "name": "hbase_regionserver_hlog_reader_impl",
        "value": null
    },
    {
        "desc": "If this number of HStoreFiles in any one HStore is exceeded, then a compaction is run to rewrite all HStoreFiles files as one HStoreFile. (One HStoreFile is written per flush of memstore.) You can delay compaction by specifying a larger number, but the compaction will take longer when it does run. During a compaction, updates cannot be flushed to disk. Long compactions require memory sufficient to carry the logging of all updates across the duration of the compaction. If too large, clients timeout during compaction.",
        "display_name": "HStore Compaction Threshold",
        "name": "hbase_hstore_compactionThreshold",
        "value": "3"
    },
    {
        "desc": "The period over which to compute the moving average of the HDFS sync latency of the HBase RegionServer.",
        "display_name": "HBase RegionServer HDFS Sync Latency Monitoring Period",
        "name": "regionserver_sync_latency_window",
        "value": "5"
    },
    {
        "desc": "Advanced Configuration Snippet (Safety Valve) for Hadoop Metrics2. Properties will be inserted into <strong>hadoop-metrics2.properties</strong>.",
        "display_name": "Hadoop Metrics2 Advanced Configuration Snippet (Safety Valve)",
        "name": "hadoop_metrics2_safety_valve",
        "value": null
    },
    {
        "desc": "The amount of stacks data that will be retained. After the retention limit is reached, the oldest data will be deleted.",
        "display_name": "Stacks Collection Data Retention",
        "name": "stacks_collection_data_retention",
        "value": "104857600"
    },
    {
        "desc": "The maximum size byte array that should come from the MSLAB, in bytes.",
        "display_name": "Maximum Byte Array from MSLAB Allocation Scheme",
        "name": "hbase_hregion_memstore_mslab_max_allocation",
        "value": "262144"
    },
    {
        "desc": "The health test thresholds for the latency of HDFS write operations that the RegionServer detects",
        "display_name": "HBase RegionServer HDFS Sync Latency Thresholds",
        "name": "regionserver_sync_latency_thresholds",
        "value": "{\"critical\":\"5000.0\",\"warning\":\"500.0\"}"
    },
    {
        "desc": "The health test thresholds for unexpected exits encountered within a recent period specified by the unexpected_exits_window configuration for the role.",
        "display_name": "Unexpected Exits Thresholds",
        "name": "unexpected_exits_thresholds",
        "value": "{\"critical\":\"any\",\"warning\":\"never\"}"
    },
    {
        "desc": "Directory where RegionServer will place its log files.",
        "display_name": "RegionServer Log Directory",
        "name": "hbase_regionserver_log_dir",
        "value": "/var/log/hbase"
    },
    {
        "desc": "The period of time that an HRegion will block updates after reaching the HStoreFile limit that is specified by 'hbase.hstore.blockingStoreFiles'. After this time has elapsed, the HRegion will stop blocking updates even if a compaction has not been completed.",
        "display_name": "HStore Blocking Wait Time",
        "name": "hbase_hstore_blockingWaitTime",
        "value": "90000"
    },
    {
        "desc": "Timeout for Canary to perform its checks.",
        "display_name": "Canary Timeout",
        "name": "hbase_regionserver_canary_timeout",
        "value": "15"
    },
    {
        "desc": "Duration between consecutive checks done by the Canary.",
        "display_name": "Canary Interval",
        "name": "hbase_regionserver_canary_interval",
        "value": "6"
    },
    {
        "desc": "The lease period, in milliseconds, for the HBase RegionServer. Clients must report in within this period or else they are considered dead.",
        "display_name": "HBase RegionServer Lease Period",
        "name": "hbase_regionserver_lease_period",
        "value": "60000"
    },
    {
        "desc": "Number of CPU shares to assign to this role. The greater the number of shares, the larger the share of the host's CPUs that will be given to this role when the host experiences CPU contention. Must be between 2 and 262144. Defaults to 1024 for processes not managed by Cloudera Manager.",
        "display_name": "Cgroup CPU Shares",
        "name": "rm_cpu_shares",
        "value": "1024"
    },
    {
        "desc": "The minimum log level for RegionServer logs",
        "display_name": "RegionServer Logging Threshold",
        "name": "log_threshold",
        "value": "INFO"
    },
    {
        "desc": "Enables the health test that the Cloudera Manager Agent can successfully contact and gather metrics from the web server.",
        "display_name": "Web Metric Collection",
        "name": "regionserver_web_metric_collection_enabled",
        "value": "true"
    },
    {
        "desc": "The name of the DNS Network Interface from which a RegionServer should report its IP address.",
        "display_name": "RegionServer DNS Network Interface",
        "name": "hbase_regionserver_dns_interface",
        "value": null
    },
    {
        "desc": "The number of reservation blocks that are used to prevent unstable RegionServers caused by an OOME.",
        "display_name": "RegionServer Reservation Blocks",
        "name": "hbase_regionserver_nbreservationblocks",
        "value": "4"
    },
    {
        "desc": "The health test thresholds of the number of file descriptors used. Specified as a percentage of file descriptor limit.",
        "display_name": "File Descriptor Monitoring Thresholds",
        "name": "regionserver_fd_thresholds",
        "value": "{\"critical\":\"70.0\",\"warning\":\"50.0\"}"
    },
    {
        "desc": "The size of the chunks allocated by MSLAB, in bytes.",
        "display_name": "Chunk Size Allocated by MSLAB Allocation Scheme",
        "name": "hbase_hregion_memstore_mslab_chunksize",
        "value": "2097152"
    },
    {
        "desc": "If the memstores in a region are this size or larger when closing, run a pre-flush process to clear out memstores before putting up the region closed flag and taking the region offline. On close, a flush process is run under the close flag up to empty memory. During this time, the region is offline and no writes are taken. If the memstore content is large, the flush process could take a long time to complete. The pre-flush process cleans out the bulk of the memstore before putting up the close flag and taking the region offline, so that the flush process that runs under the close flag has little to do.",
        "display_name": "HBase Memstore Pre-close Flush Size",
        "name": "hbase_hregion_preclose_flush_size",
        "value": "5242880"
    },
    {
        "desc": "When set, this role's process is automatically (and transparently) restarted in the event of an unexpected failure.",
        "display_name": "Automatically Restart Process",
        "name": "process_auto_restart",
        "value": "false"
    },
    {
        "desc": "The period over which to compute the moving average of the HDFS read latency of the HBase RegionServer.",
        "display_name": "HBase RegionServer HDFS Read Latency Monitoring Period",
        "name": "regionserver_read_latency_window",
        "value": "5"
    },
    {
        "desc": "The directory for HBase secure bulk Load.",
        "display_name": "HBase Secure Bulk Load Directory",
        "name": "hbase_bulkload_staging_dir",
        "value": "/tmp/hbase-staging"
    },
    {
        "desc": "An interface that is assignable to HRegionInterface. Used in HBase Client for opening a proxy to a remote HBase RegionServer.",
        "display_name": "HBase RegionServer Interface Class",
        "name": "hbase_regionserver_class",
        "value": null
    },
    {
        "desc": "Hard memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit.",
        "display_name": "Cgroup Memory Hard Limit",
        "name": "rm_memory_hard_limit",
        "value": "-1"
    },
    {
        "desc": "When true, HBase RegionServer will bind to 0.0.0.0. Only available in CDH 4.3 and later.",
        "display_name": "HBase RegionServer Bind to Wildcard Address",
        "name": "hbase_regionserver_bind_to_wildcard_address",
        "value": "true"
    },
    {
        "desc": "The time, in milliseconds, between 'major' compactions of all HStoreFiles in a region. To disable automated major compactions, set this value to 0.",
        "display_name": "HBase HRegion Major Compaction",
        "name": "hbase_hregion_majorcompaction",
        "value": "604800000"
    },
    {
        "desc": "The health test thresholds for monitoring of free space on the filesystem that contains this role's log directory.",
        "display_name": "Log Directory Free Space Monitoring Absolute Thresholds",
        "name": "log_directory_free_space_absolute_thresholds",
        "value": "{\"critical\":\"5.36870912E9\",\"warning\":\"1.073741824E10\"}"
    },
    {
        "desc": "Enable MemStore-Local Allocation Buffer (MSLAB) Allocation Scheme. <b>Note:</b> This feature is experimental in CDH3.",
        "display_name": "Enable MSLAB Allocation Scheme",
        "name": "hbase_hregion_memstore_mslab_enabled",
        "value": "true"
    },
    {
        "desc": "Enables the health test that the RegionServer is connected to the Master",
        "display_name": "HBase RegionServer to Master Connectivity Test",
        "name": "regionserver_master_connectivity_enabled",
        "value": "true"
    },
    {
        "desc": "If configured, overrides the process soft and hard rlimits (also called ulimits) for file descriptors to the configured value.",
        "display_name": "Maximum Process File Descriptors",
        "name": "rlimit_fds",
        "value": "32768"
    },
    {
        "desc": "Limit for the number of regions after which no more region splitting should take place. This is not a hard limit for the number of regions but acts as a guideline for the RegionServer to stop splitting after a certain limit.",
        "display_name": "HBase Region Split Limit",
        "name": "hbase_regionserver_regionSplitLimit",
        "value": "2147483647"
    },
    {
        "desc": "Enables the health test that the RegionServer's process state is consistent with the role configuration",
        "display_name": "RegionServer Process Health Test",
        "name": "regionserver_scm_health_enabled",
        "value": "true"
    },
    {
        "desc": "Interval, in milliseconds, between messages from the RegionServer to the HBase Master. Use a high value such as 3000 for clusters that have more than 10 hosts.",
        "display_name": "HBase RegionServer Message Interval",
        "name": "hbase_regionserver_msginterval",
        "value": "3000"
    },
    {
        "desc": "Path to directory where heap dumps are generated when java.lang.OutOfMemoryError error is thrown. This directory is automatically created if it doesn't exist. However, if this directory already exists, role user must have write access to this directory. If this directory is shared amongst multiple roles, it should have 1777 permissions. Note that the heap dump files are created with 600 permissions and are owned by the role user. The amount of free space in this directory should be greater than the maximum Java Process heap size configured for this role.",
        "display_name": "Heap Dump Directory",
        "name": "oom_heap_dump_dir",
        "value": "/tmp"
    },
    {
        "desc": "The period over which to compute the moving average of the compaction queue size.",
        "display_name": "HBase RegionServer Compaction Queue Monitoring Period",
        "name": "regionserver_compaction_queue_window",
        "value": "5"
    },
    {
        "desc": "The frequency with which stacks will be collected.",
        "display_name": "Stacks Collection Frequency",
        "name": "stacks_collection_frequency",
        "value": "5.0"
    },
    {
        "desc": "The period to review when computing the moving average of garbage collection time.",
        "display_name": "Garbage Collection Duration Monitoring Period",
        "name": "regionserver_gc_duration_window",
        "value": "5"
    },
    {
        "desc": "Time period in seconds to reset long-running metrics (e.g. compactions). This is an HBase specific configuration.",
        "display_name": "Extended Period",
        "name": "hbase_metrics_extended_period",
        "value": "3600"
    },
    {
        "desc": "Comma-separated list of codecs that the RegionServer requires to start. Use this setting to make sure that all RegionServers joining a cluster are installed with a particular set of codecs.",
        "display_name": "RegionServer Codecs",
        "name": "hbase_regionserver_codecs",
        "value": ""
    },
    {
        "desc": "Maximum size of all memstores in a RegionServer before new updates are blocked and flushes are forced.",
        "display_name": "Maximum Size of All Memstores in RegionServer",
        "name": "hbase_regionserver_global_memstore_upperLimit",
        "value": "0.4"
    },
    {
        "desc": "Number of handlers for processing priority requests in a RegionServer.",
        "display_name": "HBase RegionServer Meta-Handler Count",
        "name": "hbase_regionserver_metahandler_count",
        "value": "10"
    },
    {
        "desc": "Soft memory limit to assign to this role, enforced by the Linux kernel. When the limit is reached, the kernel will reclaim pages charged to the process if and only if the host is facing memory pressure. If reclaiming fails, the kernel may kill the process. Both anonymous as well as page cache pages contribute to the limit. Use a value of -1 B to specify no limit. By default processes not managed by Cloudera Manager will have no limit.",
        "display_name": "Cgroup Memory Soft Limit",
        "name": "rm_memory_soft_limit",
        "value": "-1"
    },
    {
        "desc": "Period, in milliseconds, at which to roll the commit log.",
        "display_name": "HBase RegionServer Log Roll Period",
        "name": "hbase_regionserver_logroll_period",
        "value": "3600000"
    },
    {
        "desc": "The period over which to compute the moving average of the flush queue size.",
        "display_name": "HBase RegionServer Flush Queue Monitoring Period",
        "name": "regionserver_flush_queue_window",
        "value": "5"
    },
    {
        "desc": "Maximum HStoreFile size. If any one of a column families' HStoreFiles has grown to exceed this value, the hosting HRegion is split in two.",
        "display_name": "HBase Maximum File Size",
        "name": "hbase_hregion_max_filesize",
        "value": "10737418240"
    },
    {
        "desc": "The health test thresholds of the weighted average size of the HBase RegionServer compaction queue over a recent period. See HBase RegionServer Compaction Queue Monitoring Period.",
        "display_name": "HBase RegionServer Compaction Queue Monitoring Thresholds",
        "name": "regionserver_compaction_queue_thresholds",
        "value": "{\"critical\":\"never\",\"warning\":\"10.0\"}"
    },
    {
        "desc": "If there are more than this number of HStoreFiles in any one HStore, then updates are blocked for this HRegion until a compaction is completed, or until the value specified for 'hbase.hstore.blockingWaitTime' has been exceeded.",
        "display_name": "HStore Blocking Store Files",
        "name": "hbase_hstore_blockingStoreFiles",
        "value": "10"
    },
    {
        "desc": "The health test thresholds on the duration of the metrics request to the web server.",
        "display_name": "Web Metric Collection Duration",
        "name": "regionserver_web_metric_collection_thresholds",
        "value": "{\"critical\":\"never\",\"warning\":\"10000.0\"}"
    },
    {
        "desc": "The maximum number of rolled log files to keep for RegionServer logs.  Typically used by log4j.",
        "display_name": "RegionServer Maximum Log File Backups",
        "name": "max_log_backup_index",
        "value": "10"
    },
    {
        "desc": "When set, a SIGKILL signal is sent to the role process when java.lang.OutOfMemoryError is thrown.",
        "display_name": "Kill When Out of Memory",
        "name": "oom_sigkill_enabled",
        "value": "true"
    },
    {
        "desc": "The HLog file writer implementation.",
        "display_name": "HLog Writer Implementation",
        "name": "hbase_regionserver_hlog_writer_impl",
        "value": null
    },
    {
        "desc": "When set, Cloudera Manager will send alerts when this entity's configuration changes.",
        "display_name": "Enable Configuration Change Alerts",
        "name": "enable_config_alerts",
        "value": "false"
    },
    {
        "desc": "The port that an HBase RegionServer binds to.",
        "display_name": "HBase RegionServer Port",
        "name": "hbase_regionserver_port",
        "value": "60020"
    },
    {
        "desc": "Number of RPC Server instances spun up on RegionServers.",
        "display_name": "HBase RegionServer Handler Count",
        "name": "hbase_regionserver_handler_count",
        "value": "30"
    },
    {
        "desc": "The directory in which stacks logs will be placed. If not set, stacks will be logged into a <span class='code'>stacks</span> subdirectory of the role's log directory.",
        "display_name": "Stacks Collection Directory",
        "name": "stacks_collection_directory",
        "value": null
    },
    {
        "desc": "Maximum size in bytes for the Java Process heap memory.  Passed to Java -Xmx.",
        "display_name": "Java Heap Size of HBase RegionServer in Bytes",
        "name": "hbase_regionserver_java_heapsize",
        "value": "4294967296"
    },
    {
        "desc": "Weight for the read I/O requests issued by this role. The greater the weight, the higher the priority of the requests when the host experiences I/O contention. Must be between 100 and 1000. Defaults to 1000 for processes not managed by Cloudera Manager.",
        "display_name": "Cgroup I/O Weight",
        "name": "rm_io_weight",
        "value": "500"
    },
    {
        "desc": "When computing the overall RegionServer health, consider the host's health.",
        "display_name": "RegionServer Host Health Test",
        "name": "regionserver_host_health_enabled",
        "value": "true"
    }
]