== System Properties
Below, a number of relevant System Properties are listed.

NOTE: With `getBoolean`, returns if a System Property with the provided {@code systemPropertyKey} either exists, is set to "yes" or is set to "true", see
https://github.com/OpenHFT/Chronicle-Core/blob/351e79ed593fa656c21b4e5a540a3a5831cd06a3/src/main/java/net/openhft/chronicle/core/Jvm.java#L1184[javadoc].

.System properties
[cols=4*, options="header"]
|===
| Property Key | Default | Description | Java Variable Name (Type)
| chronicle.queue.checkrollcycle | `false` | Setting this property to "yes", "true" or "", prints a warning message every time a roll cycle file is created | _SHOULD_CHECK_CYCLE_ (boolean)
| chronicle.queue.checkInterrupts | `false` | Setting this property to "yes", "true" or "", overrides any programmatic setting of checkInterrupt which will result in the tailer throwing an InterruptedException rather than rolling back any ongoing operation upon queue close | _checkInterrupts_ (boolean)
| chronicle.queue.report.linear.scan.latency | `false` | Setting this property to "yes", "true" or "" - when scan time between two indexes exceeds 100 ms - the scan time will be printed | _REPORT_LINEAR_SCAN_ (boolean)
| chronicle.queue.rollingResourceCache.size | 128 | Determines how many information elements (at most) pertaining to rolled queue files that should be held in memory at any given moment | _CACHE_SIZE_ (int)
| chronicle.queue.warnSlowAppenderMs | 100 | Triggers warning message if an appender takes longer than default time | _WARN_SLOW_APPENDER_MS_ (int)
| chronicle.table.store.timeoutMS | 10000 ms | The maximum time allowed when trying to acquire the exclusive table store lock | timeoutMS (long)
| queue.force.unlock.mode | `LOCKING_PROCESS_DEAD` | See `UnlockMode` enum for allowable values |
| queue.ignoreIndexingFailure | `false` | Setting this property to "yes", "true" or "", an exception is not thrown if the number of entries exceeds the max number for the current rollcycle | _IGNORE_INDEXING_FAILURE_ (boolean)
| queue.check.index | `false` | Setting this property to "yes", "true" or "" returns if Chronicle Queue shall assert certain index invariants on various occasions throughout the code. Setting this property to "", "yes" or "true" will enable this feature. Enabling the feature will slow down execution if assertions (-ea) are enabled. | _CHECK_INDEX_ (boolean)
| SingleChronicleQueueExcerpts.earlyAcquireNextCycle | `false` | Used by the pretoucher to acquire the next cycle file, but does NOT do the roll. Setting this property to "yes", "true" or "" results in acquiring the cycle file early | _EARLY_ACQUIRE_NEXT_CYCLE_ (boolean)
|===
