com.sleepycat.je.EnvironmentLockedException: (JE 4.0.92) C:\asp\crawler4jStorage\frontier The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.

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    com.sleepycat.je.EnvironmentLockedException: (JE 4.0.92) C:\asp\crawler4jStorage\frontier The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.
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    com.sleepycat.je.EnvironmentLockedException: (JE 4.0.92) C:\asp\crawler4jStorage\frontier The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.
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    com.sleepycat.je.EnvironmentLockedException: (JE 4.0.71) E:\crawldata\frontier The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.
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    com.sleepycat.je.EnvironmentLockedException: (JE 4.1.7) /data/bdb/dbEnv/test1 The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.

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    Root Cause Analysis

    1. com.sleepycat.je.EnvironmentLockedException

      (JE 4.0.92) C:\asp\crawler4jStorage\frontier The environment cannot be locked for single writer access. ENV_LOCKED: The je.lck file could not be locked. Environment is invalid and must be closed.

      at com.sleepycat.je.log.FileManager.<init>()
    2. Berkeley DB Java Edition
      Environment.<init>
      1. com.sleepycat.je.log.FileManager.<init>(FileManager.java:347)
      2. com.sleepycat.je.dbi.EnvironmentImpl.<init>(EnvironmentImpl.java:434)
      3. com.sleepycat.je.dbi.EnvironmentImpl.<init>(EnvironmentImpl.java:336)
      4. com.sleepycat.je.dbi.DbEnvPool.getEnvironment(DbEnvPool.java:182)
      5. com.sleepycat.je.Environment.makeEnvironmentImpl(Environment.java:230)
      6. com.sleepycat.je.Environment.<init>(Environment.java:212)
      7. com.sleepycat.je.Environment.<init>(Environment.java:166)
      7 frames
    3. crawler4j
      CrawlController.<init>
      1. edu.uci.ics.crawler4j.crawler.CrawlController.<init>(CrawlController.java:104)
      1 frame
    4. getStarted2
      Controller.main
      1. getStarted2.Controller.main(Controller.java:34)
      1 frame