Examples of com.cloud.utils.db.GlobalLock.unlock()

com.cloud.utils.db.GlobalLock.unlock()

            try {
                if (scanLock.lock(10)) {
                    try {
                        return collectDirectNetworkUsage(host);
                    } finally {
                        scanLock.unlock();
                    }
                }
            } finally {
                scanLock.releaseRef();
            }

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                        }
                    }
                }
                finally{
                    syncLock.unlock();
                }
            }
            else {
                s_logger.info("Couldn't get global lock on " + lockString + ", another thread may be doing template sync on data store " + storeId + " now.");
            }

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                        if(s_logger.isTraceEnabled()) {
                            s_logger.trace("SystemVM ISO file " + destIso.getPath() + " already exists");
                        }
                    }
                } finally {
                    lock.unlock();
                }
            }
        } finally {
            lock.releaseRef();
        }

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                            }
                        }
                    } catch (Exception e) {
                        s_logger.error("Caught the following Exception", e);
                    } finally {
                        scanLock.unlock();
                    }
                }
            } finally {
                scanLock.releaseRef();
                UserContext.unregisterContext();

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                                tryLbProvisioning = true; // if possible provision a LB appliance in to the physical
// network
                            }
                        }
                    } finally {
                        deviceMapLock.unlock();
                        if (lbDevice == null) {
                            txn.rollback();
                        }
                    }
                }

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                    }


                    if (s_logger.isDebugEnabled()) {
                        s_logger.debug("Successfully destroyed load balancer appliance used for the network" + guestConfig.getId());
                    }
                    deviceMapLock.unlock();


                    // remove the provisioned load balancer appliance from cloudstack
                    deleteExternalLoadBalancer(lbHost.getId());


                    // release the private IP back to dc pool, as the load balancer appliance is now destroyed

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                    // release the public IP allocated for this LB appliance
                    DetailVO publicIpDetail = _hostDetailDao.findDetail(lbHost.getId(), "publicip");
                    IPAddressVO ipVo = _ipAddressDao.findByIpAndDcId(guestConfig.getDataCenterId(), publicIpDetail.toString());
                    _networkMgr.disassociatePublicIpAddress(ipVo.getId(), _accountMgr.getSystemUser().getId(), _accountMgr.getSystemAccount());
                } else {
                    deviceMapLock.unlock();
                }


                return true;
            } else {
                s_logger.error("Failed to release load balancer device for the network" + guestConfig.getId() + "as failed to acquire lock ");

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                    s_logger.error("Exception ", e);
                } finally {
                    if (txn != null) {
                        txn.close();
                    }
                    lock.unlock();
                }
            } catch (Exception e) {
                s_logger.error("Exception ", e);
            }
        }

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                    return;
                }


                upgrade(dbVersion, currentVersion);
            } finally {
                lock.unlock();
            }
        } finally {
            lock.releaseRef();
        }
    }

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                        if(s_logger.isTraceEnabled()) {
                            s_logger.trace("SystemVM ISO file " + destIso.getPath() + " already exists");
                        }
                    }
                } finally {
                    lock.unlock();
                }
            }
        } finally {
            lock.releaseRef();
        }

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