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From sboi...@apache.org
Subject [27/40] ignite git commit: IGNITE-3172 Refactoring Ignite-Cassandra serializers. - Fixes #956.
Date Thu, 15 Sep 2016 06:40:25 GMT
http://git-wip-us.apache.org/repos/asf/ignite/blob/231ead01/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-start.sh
----------------------------------------------------------------------
diff --git a/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-start.sh b/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-start.sh
deleted file mode 100644
index 4a6daef..0000000
--- a/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-start.sh
+++ /dev/null
@@ -1,217 +0,0 @@
-#!/bin/sh
-
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# -----------------------------------------------------------------------------------------------
-# Script to start Cassandra daemon (used by cassandra-bootstrap.sh)
-# -----------------------------------------------------------------------------------------------
-
-#profile=/home/cassandra/.bash_profile
-profile=/root/.bash_profile
-
-. $profile
-. /opt/ignite-cassandra-tests/bootstrap/aws/common.sh "cassandra"
-
-# Setups Cassandra seeds for this EC2 node. Looks for the information in S3 about
-# already up and running Cassandra cluster nodes
-setupCassandraSeeds()
-{
-    if [ "$FIRST_NODE_LOCK" == "true" ]; then
-        echo "[INFO] Setting up Cassandra seeds"
-
-        CLUSTER_SEEDS=$(hostname -f | tr '[:upper:]' '[:lower:]')
-
-        echo "[INFO] Using host address as a seed for the first Cassandra node: $CLUSTER_SEEDS"
-
-        aws s3 rm --recursive ${S3_CASSANDRA_NODES_DISCOVERY::-1}
-        if [ $? -ne 0 ]; then
-            terminate "Failed to clean Cassandra node discovery URL: $S3_CASSANDRA_NODES_DISCOVERY"
-        fi
-    else
-        setupClusterSeeds "cassandra" "true"
-        CLUSTER_SEEDS=$(echo $CLUSTER_SEEDS | sed -r "s/ /,/g")
-    fi
-
-    cat /opt/cassandra/conf/cassandra-template.yaml | sed -r "s/\\\$\{CASSANDRA_SEEDS\}/$CLUSTER_SEEDS/g" > /opt/cassandra/conf/cassandra.yaml
-}
-
-# Gracefully starts Cassandra daemon and waits until it joins Cassandra cluster
-startCassandra()
-{
-    echo "[INFO]-------------------------------------------------------------"
-    echo "[INFO] Trying attempt $START_ATTEMPT to start Cassandra daemon"
-    echo "[INFO]-------------------------------------------------------------"
-    echo ""
-
-    setupCassandraSeeds
-
-    waitToJoinCluster
-
-    if [ "$FIRST_NODE_LOCK" == "true" ]; then
-        aws s3 rm --recursive ${S3_CASSANDRA_NODES_DISCOVERY::-1}
-        if [ $? -ne 0 ]; then
-            terminate "Failed to clean Cassandra node discovery URL: $S3_IGNITE_NODES_DISCOVERY"
-        fi
-    fi
-
-    proc=$(ps -ef | grep java | grep "org.apache.cassandra.service.CassandraDaemon")
-    proc=($proc)
-
-    if [ -n "${proc[1]}" ]; then
-        echo "[INFO] Terminating existing Cassandra process ${proc[1]}"
-        kill -9 ${proc[1]}
-    fi
-
-    echo "[INFO] Starting Cassandra"
-    rm -Rf /opt/cassandra/logs/* /storage/cassandra/*
-    /opt/cassandra/bin/cassandra -R &
-
-    echo "[INFO] Cassandra job id: $!"
-
-    sleep 1m
-
-    START_ATTEMPT=$(( $START_ATTEMPT+1 ))
-}
-
-#######################################################################################################
-
-START_ATTEMPT=0
-
-# Cleans all the previous metadata about this EC2 node
-unregisterNode
-
-# Tries to get first-node lock
-tryToGetFirstNodeLock
-
-echo "[INFO]-----------------------------------------------------------------"
-
-if [ "$FIRST_NODE_LOCK" == "true" ]; then
-    echo "[INFO] Starting first Cassandra node"
-else
-    echo "[INFO] Starting Cassandra node"
-fi
-
-echo "[INFO]-----------------------------------------------------------------"
-printInstanceInfo
-echo "[INFO]-----------------------------------------------------------------"
-
-if [ "$FIRST_NODE_LOCK" != "true" ]; then
-    waitFirstClusterNodeRegistered "true"
-else
-    cleanupMetadata
-fi
-
-# Start Cassandra daemon
-startCassandra
-
-startTime=$(date +%s)
-
-# Trying multiple attempts to start Cassandra daemon
-while true; do
-    proc=$(ps -ef | grep java | grep "org.apache.cassandra.service.CassandraDaemon")
-
-    /opt/cassandra/bin/nodetool status &> /dev/null
-
-    if [ $? -eq 0 ]; then
-        echo "[INFO]-----------------------------------------------------"
-        echo "[INFO] Cassandra daemon successfully started"
-        echo "[INFO]-----------------------------------------------------"
-        echo $proc
-        echo "[INFO]-----------------------------------------------------"
-
-        # Once node joined the cluster we need to remove cluster-join lock
-        # to allow other EC2 nodes to acquire it and join cluster sequentially
-        removeClusterJoinLock
-
-        break
-    fi
-
-    currentTime=$(date +%s)
-    duration=$(( $currentTime-$startTime ))
-    duration=$(( $duration/60 ))
-
-    if [ $duration -gt $SERVICE_STARTUP_TIME ]; then
-        if [ "$FIRST_NODE_LOCK" == "true" ]; then
-            # If the first node of Cassandra cluster failed to start Cassandra daemon in SERVICE_STARTUP_TIME min,
-            # we will not try any other attempts and just terminate with error. Terminate function itself, will
-            # take care about removing all the locks holding by this node.
-            terminate "${SERVICE_STARTUP_TIME}min timeout expired, but first Cassandra daemon is still not up and running"
-        else
-            # If node isn't the first node of Cassandra cluster and it failed to start we need to
-            # remove cluster-join lock to allow other EC2 nodes to acquire it
-            removeClusterJoinLock
-
-            # If node failed all SERVICE_START_ATTEMPTS attempts to start Cassandra daemon we will not
-            # try anymore and terminate with error
-            if [ $START_ATTEMPT -gt $SERVICE_START_ATTEMPTS ]; then
-                terminate "${SERVICE_START_ATTEMPTS} attempts exceed, but Cassandra daemon is still not up and running"
-            fi
-
-            # New attempt to start Cassandra daemon
-            startCassandra
-        fi
-
-        continue
-    fi
-
-    # Checking for the situation when two nodes trying to simultaneously join Cassandra cluster.
-    # This actually can happen only in not standard situation, when you are trying to start
-    # Cassandra daemon on some EC2 nodes manually and not using bootstrap script.
-    concurrencyError=$(cat /opt/cassandra/logs/system.log | grep "java.lang.UnsupportedOperationException: Other bootstrapping/leaving/moving nodes detected, cannot bootstrap while cassandra.consistent.rangemovement is true")
-
-    if [ -n "$concurrencyError" ] && [ "$FIRST_NODE_LOCK" != "true" ]; then
-        # Remove cluster-join lock to allow other EC2 nodes to acquire it
-        removeClusterJoinLock
-
-        echo "[WARN] Failed to concurrently start Cassandra daemon. Sleeping for extra 30sec"
-        sleep 30s
-
-        # New attempt to start Cassandra daemon
-        startCassandra
-
-        continue
-    fi
-
-    # Handling situation when Cassandra daemon process abnormally terminated
-    if [ -z "$proc" ]; then
-        # If this is the first node of Cassandra cluster just terminating with error
-        if [ "$FIRST_NODE_LOCK" == "true" ]; then
-            terminate "Failed to start Cassandra daemon"
-        fi
-
-        # Remove cluster-join lock to allow other EC2 nodes to acquire it
-        removeClusterJoinLock
-
-        echo "[WARN] Failed to start Cassandra daemon. Sleeping for extra 30sec"
-        sleep 30s
-
-        # New attempt to start Cassandra daemon
-        startCassandra
-
-        continue
-    fi
-
-    echo "[INFO] Waiting for Cassandra daemon to start, time passed ${duration}min"
-    sleep 30s
-done
-
-# Once Cassandra daemon successfully started we registering new Cassandra node in S3
-registerNode
-
-# Terminating script with zero exit code
-terminate
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/231ead01/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-template.yaml
----------------------------------------------------------------------
diff --git a/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-template.yaml b/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-template.yaml
deleted file mode 100644
index e621886..0000000
--- a/modules/cassandra/src/test/bootstrap/aws/cassandra/cassandra-template.yaml
+++ /dev/null
@@ -1,888 +0,0 @@
-#
-# Licensed to the Apache Software Foundation (ASF) under one or more
-# contributor license agreements.  See the NOTICE file distributed with
-# this work for additional information regarding copyright ownership.
-# The ASF licenses this file to You under the Apache License, Version 2.0
-# (the "License"); you may not use this file except in compliance with
-# the License.  You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-# Cassandra storage config YAML
-
-# NOTE:
-#   See http://wiki.apache.org/cassandra/StorageConfiguration for
-#   full explanations of configuration directives
-# /NOTE
-
-# The name of the cluster. This is mainly used to prevent machines in
-# one logical cluster from joining another.
-cluster_name: 'CassandraIgnite'
-
-# It makes new (non-seed) nodes automatically migrate the right data to themselves.
-# When initializing a fresh cluster with no data, add auto_bootstrap: false
-auto_bootstrap: false
-
-# This defines the number of tokens randomly assigned to this node on the ring
-# The more tokens, relative to other nodes, the larger the proportion of data
-# that this node will store. You probably want all nodes to have the same number
-# of tokens assuming they have equal hardware capability.
-#
-# If you leave this unspecified, Cassandra will use the default of 1 token for legacy compatibility,
-# and will use the initial_token as described below.
-#
-# Specifying initial_token will override this setting on the node's initial start,
-# on subsequent starts, this setting will apply even if initial token is set.
-#
-# If you already have a cluster with 1 token per node, and wish to migrate to 
-# multiple tokens per node, see http://wiki.apache.org/cassandra/Operations
-num_tokens: 256
-
-# initial_token allows you to specify tokens manually.  While you can use # it with
-# vnodes (num_tokens > 1, above) -- in which case you should provide a 
-# comma-separated list -- it's primarily used when adding nodes # to legacy clusters 
-# that do not have vnodes enabled.
-# initial_token:
-
-# See http://wiki.apache.org/cassandra/HintedHandoff
-# May either be "true" or "false" to enable globally, or contain a list
-# of data centers to enable per-datacenter.
-# hinted_handoff_enabled: DC1,DC2
-hinted_handoff_enabled: true
-# this defines the maximum amount of time a dead host will have hints
-# generated.  After it has been dead this long, new hints for it will not be
-# created until it has been seen alive and gone down again.
-max_hint_window_in_ms: 10800000 # 3 hours
-# Maximum throttle in KBs per second, per delivery thread.  This will be
-# reduced proportionally to the number of nodes in the cluster.  (If there
-# are two nodes in the cluster, each delivery thread will use the maximum
-# rate; if there are three, each will throttle to half of the maximum,
-# since we expect two nodes to be delivering hints simultaneously.)
-hinted_handoff_throttle_in_kb: 1024
-# Number of threads with which to deliver hints;
-# Consider increasing this number when you have multi-dc deployments, since
-# cross-dc handoff tends to be slower
-max_hints_delivery_threads: 2
-
-# Maximum throttle in KBs per second, total. This will be
-# reduced proportionally to the number of nodes in the cluster.
-batchlog_replay_throttle_in_kb: 1024
-
-# Authentication backend, implementing IAuthenticator; used to identify users
-# Out of the box, Cassandra provides org.apache.cassandra.auth.{AllowAllAuthenticator,
-# PasswordAuthenticator}.
-#
-# - AllowAllAuthenticator performs no checks - set it to disable authentication.
-# - PasswordAuthenticator relies on username/password pairs to authenticate
-#   users. It keeps usernames and hashed passwords in system_auth.credentials table.
-#   Please increase system_auth keyspace replication factor if you use this authenticator.
-#   If using PasswordAuthenticator, CassandraRoleManager must also be used (see below)
-#authenticator: PasswordAuthenticator
-authenticator: AllowAllAuthenticator
-
-# Authorization backend, implementing IAuthorizer; used to limit access/provide permissions
-# Out of the box, Cassandra provides org.apache.cassandra.auth.{AllowAllAuthorizer,
-# CassandraAuthorizer}.
-#
-# - AllowAllAuthorizer allows any action to any user - set it to disable authorization.
-# - CassandraAuthorizer stores permissions in system_auth.permissions table. Please
-#   increase system_auth keyspace replication factor if you use this authorizer.
-#authorizer: CassandraAuthorizer
-authorizer: AllowAllAuthorizer
-
-# Part of the Authentication & Authorization backend, implementing IRoleManager; used
-# to maintain grants and memberships between roles.
-# Out of the box, Cassandra provides org.apache.cassandra.auth.CassandraRoleManager,
-# which stores role information in the system_auth keyspace. Most functions of the
-# IRoleManager require an authenticated login, so unless the configured IAuthenticator
-# actually implements authentication, most of this functionality will be unavailable.
-#
-# - CassandraRoleManager stores role data in the system_auth keyspace. Please
-#   increase system_auth keyspace replication factor if you use this role manager.
-role_manager: CassandraRoleManager
-
-# Validity period for roles cache (fetching permissions can be an
-# expensive operation depending on the authorizer). Granted roles are cached for
-# authenticated sessions in AuthenticatedUser and after the period specified
-# here, become eligible for (async) reload.
-# Defaults to 2000, set to 0 to disable.
-# Will be disabled automatically for AllowAllAuthenticator.
-roles_validity_in_ms: 2000
-
-# Refresh interval for roles cache (if enabled).
-# After this interval, cache entries become eligible for refresh. Upon next
-# access, an async reload is scheduled and the old value returned until it
-# completes. If roles_validity_in_ms is non-zero, then this must be
-# also.
-# Defaults to the same value as roles_validity_in_ms.
-# roles_update_interval_in_ms: 1000
-
-# Validity period for permissions cache (fetching permissions can be an
-# expensive operation depending on the authorizer, CassandraAuthorizer is
-# one example). Defaults to 2000, set to 0 to disable.
-# Will be disabled automatically for AllowAllAuthorizer.
-permissions_validity_in_ms: 2000
-
-# Refresh interval for permissions cache (if enabled).
-# After this interval, cache entries become eligible for refresh. Upon next
-# access, an async reload is scheduled and the old value returned until it
-# completes. If permissions_validity_in_ms is non-zero, then this must be
-# also.
-# Defaults to the same value as permissions_validity_in_ms.
-# permissions_update_interval_in_ms: 1000
-
-# The partitioner is responsible for distributing groups of rows (by
-# partition key) across nodes in the cluster.  You should leave this
-# alone for new clusters.  The partitioner can NOT be changed without
-# reloading all data, so when upgrading you should set this to the
-# same partitioner you were already using.
-#
-# Besides Murmur3Partitioner, partitioners included for backwards
-# compatibility include RandomPartitioner, ByteOrderedPartitioner, and
-# OrderPreservingPartitioner.
-#
-partitioner: org.apache.cassandra.dht.Murmur3Partitioner
-
-# Directories where Cassandra should store data on disk.  Cassandra
-# will spread data evenly across them, subject to the granularity of
-# the configured compaction strategy.
-# If not set, the default directory is $CASSANDRA_HOME/data/data.
-data_file_directories: ${CASSANDRA_DATA_DIR}
-
-# commit log.  when running on magnetic HDD, this should be a
-# separate spindle than the data directories.
-# If not set, the default directory is $CASSANDRA_HOME/data/commitlog.
-commitlog_directory: ${CASSANDRA_COMMITLOG_DIR}
-
-# policy for data disk failures:
-# die: shut down gossip and client transports and kill the JVM for any fs errors or
-#      single-sstable errors, so the node can be replaced.
-# stop_paranoid: shut down gossip and client transports even for single-sstable errors,
-#                kill the JVM for errors during startup.
-# stop: shut down gossip and client transports, leaving the node effectively dead, but
-#       can still be inspected via JMX, kill the JVM for errors during startup.
-# best_effort: stop using the failed disk and respond to requests based on
-#              remaining available sstables.  This means you WILL see obsolete
-#              data at CL.ONE!
-# ignore: ignore fatal errors and let requests fail, as in pre-1.2 Cassandra
-disk_failure_policy: stop
-
-# policy for commit disk failures:
-# die: shut down gossip and Thrift and kill the JVM, so the node can be replaced.
-# stop: shut down gossip and Thrift, leaving the node effectively dead, but
-#       can still be inspected via JMX.
-# stop_commit: shutdown the commit log, letting writes collect but
-#              continuing to service reads, as in pre-2.0.5 Cassandra
-# ignore: ignore fatal errors and let the batches fail
-commit_failure_policy: stop
-
-# Maximum size of the key cache in memory.
-#
-# Each key cache hit saves 1 seek and each row cache hit saves 2 seeks at the
-# minimum, sometimes more. The key cache is fairly tiny for the amount of
-# time it saves, so it's worthwhile to use it at large numbers.
-# The row cache saves even more time, but must contain the entire row,
-# so it is extremely space-intensive. It's best to only use the
-# row cache if you have hot rows or static rows.
-#
-# NOTE: if you reduce the size, you may not get you hottest keys loaded on startup.
-#
-# Default value is empty to make it "auto" (min(5% of Heap (in MB), 100MB)). Set to 0 to disable key cache.
-key_cache_size_in_mb:
-
-# Duration in seconds after which Cassandra should
-# save the key cache. Caches are saved to saved_caches_directory as
-# specified in this configuration file.
-#
-# Saved caches greatly improve cold-start speeds, and is relatively cheap in
-# terms of I/O for the key cache. Row cache saving is much more expensive and
-# has limited use.
-#
-# Default is 14400 or 4 hours.
-key_cache_save_period: 14400
-
-# Number of keys from the key cache to save
-# Disabled by default, meaning all keys are going to be saved
-# key_cache_keys_to_save: 100
-
-# Row cache implementation class name.
-# Available implementations:
-#   org.apache.cassandra.cache.OHCProvider                Fully off-heap row cache implementation (default).
-#   org.apache.cassandra.cache.SerializingCacheProvider   This is the row cache implementation availabile
-#                                                         in previous releases of Cassandra.
-# row_cache_class_name: org.apache.cassandra.cache.OHCProvider
-
-# Maximum size of the row cache in memory.
-# Please note that OHC cache implementation requires some additional off-heap memory to manage
-# the map structures and some in-flight memory during operations before/after cache entries can be
-# accounted against the cache capacity. This overhead is usually small compared to the whole capacity.
-# Do not specify more memory that the system can afford in the worst usual situation and leave some
-# headroom for OS block level cache. Do never allow your system to swap.
-#
-# Default value is 0, to disable row caching.
-row_cache_size_in_mb: 0
-
-# Duration in seconds after which Cassandra should save the row cache.
-# Caches are saved to saved_caches_directory as specified in this configuration file.
-#
-# Saved caches greatly improve cold-start speeds, and is relatively cheap in
-# terms of I/O for the key cache. Row cache saving is much more expensive and
-# has limited use.
-#
-# Default is 0 to disable saving the row cache.
-row_cache_save_period: 0
-
-# Number of keys from the row cache to save.
-# Specify 0 (which is the default), meaning all keys are going to be saved
-# row_cache_keys_to_save: 100
-
-# Maximum size of the counter cache in memory.
-#
-# Counter cache helps to reduce counter locks' contention for hot counter cells.
-# In case of RF = 1 a counter cache hit will cause Cassandra to skip the read before
-# write entirely. With RF > 1 a counter cache hit will still help to reduce the duration
-# of the lock hold, helping with hot counter cell updates, but will not allow skipping
-# the read entirely. Only the local (clock, count) tuple of a counter cell is kept
-# in memory, not the whole counter, so it's relatively cheap.
-#
-# NOTE: if you reduce the size, you may not get you hottest keys loaded on startup.
-#
-# Default value is empty to make it "auto" (min(2.5% of Heap (in MB), 50MB)). Set to 0 to disable counter cache.
-# NOTE: if you perform counter deletes and rely on low gcgs, you should disable the counter cache.
-counter_cache_size_in_mb:
-
-# Duration in seconds after which Cassandra should
-# save the counter cache (keys only). Caches are saved to saved_caches_directory as
-# specified in this configuration file.
-#
-# Default is 7200 or 2 hours.
-counter_cache_save_period: 7200
-
-# Number of keys from the counter cache to save
-# Disabled by default, meaning all keys are going to be saved
-# counter_cache_keys_to_save: 100
-
-# The off-heap memory allocator.  Affects storage engine metadata as
-# well as caches.  Experiments show that JEMAlloc saves some memory
-# than the native GCC allocator (i.e., JEMalloc is more
-# fragmentation-resistant).
-# 
-# Supported values are: NativeAllocator, JEMallocAllocator
-#
-# If you intend to use JEMallocAllocator you have to install JEMalloc as library and
-# modify cassandra-env.sh as directed in the file.
-#
-# Defaults to NativeAllocator
-# memory_allocator: NativeAllocator
-
-# saved caches
-# If not set, the default directory is $CASSANDRA_HOME/data/saved_caches.
-saved_caches_directory: ${CASSANDRA_CACHES_DIR}
-
-# commitlog_sync may be either "periodic" or "batch." 
-# 
-# When in batch mode, Cassandra won't ack writes until the commit log
-# has been fsynced to disk.  It will wait
-# commitlog_sync_batch_window_in_ms milliseconds between fsyncs.
-# This window should be kept short because the writer threads will
-# be unable to do extra work while waiting.  (You may need to increase
-# concurrent_writes for the same reason.)
-#
-# commitlog_sync: batch
-# commitlog_sync_batch_window_in_ms: 2
-#
-# the other option is "periodic" where writes may be acked immediately
-# and the CommitLog is simply synced every commitlog_sync_period_in_ms
-# milliseconds. 
-commitlog_sync: periodic
-commitlog_sync_period_in_ms: 10000
-
-# The size of the individual commitlog file segments.  A commitlog
-# segment may be archived, deleted, or recycled once all the data
-# in it (potentially from each columnfamily in the system) has been
-# flushed to sstables.  
-#
-# The default size is 32, which is almost always fine, but if you are
-# archiving commitlog segments (see commitlog_archiving.properties),
-# then you probably want a finer granularity of archiving; 8 or 16 MB
-# is reasonable.
-commitlog_segment_size_in_mb: 32
-
-# Compression to apply to the commit log. If omitted, the commit log
-# will be written uncompressed.  LZ4, Snappy, and Deflate compressors
-# are supported.
-#commitlog_compression:
-#   - class_name: LZ4Compressor
-#     parameters:
-#         -
-
-# any class that implements the SeedProvider interface and has a
-# constructor that takes a Map<String, String> of parameters will do.
-seed_provider:
-    # Addresses of hosts that are deemed contact points. 
-    # Cassandra nodes use this list of hosts to find each other and learn
-    # the topology of the ring.  You must change this if you are running
-    # multiple nodes!
-    - class_name: org.apache.cassandra.locator.SimpleSeedProvider
-      parameters:
-          # seeds is actually a comma-delimited list of addresses.
-          # Ex: "<ip1>,<ip2>,<ip3>"
-          - seeds: "${CASSANDRA_SEEDS}"
-
-# For workloads with more data than can fit in memory, Cassandra's
-# bottleneck will be reads that need to fetch data from
-# disk. "concurrent_reads" should be set to (16 * number_of_drives) in
-# order to allow the operations to enqueue low enough in the stack
-# that the OS and drives can reorder them. Same applies to
-# "concurrent_counter_writes", since counter writes read the current
-# values before incrementing and writing them back.
-#
-# On the other hand, since writes are almost never IO bound, the ideal
-# number of "concurrent_writes" is dependent on the number of cores in
-# your system; (8 * number_of_cores) is a good rule of thumb.
-concurrent_reads: 32
-concurrent_writes: 32
-concurrent_counter_writes: 32
-
-# Total memory to use for sstable-reading buffers.  Defaults to
-# the smaller of 1/4 of heap or 512MB.
-# file_cache_size_in_mb: 512
-
-# Total permitted memory to use for memtables. Cassandra will stop 
-# accepting writes when the limit is exceeded until a flush completes,
-# and will trigger a flush based on memtable_cleanup_threshold
-# If omitted, Cassandra will set both to 1/4 the size of the heap.
-# memtable_heap_space_in_mb: 2048
-# memtable_offheap_space_in_mb: 2048
-
-# Ratio of occupied non-flushing memtable size to total permitted size
-# that will trigger a flush of the largest memtable.  Lager mct will
-# mean larger flushes and hence less compaction, but also less concurrent
-# flush activity which can make it difficult to keep your disks fed
-# under heavy write load.
-#
-# memtable_cleanup_threshold defaults to 1 / (memtable_flush_writers + 1)
-# memtable_cleanup_threshold: 0.11
-
-# Specify the way Cassandra allocates and manages memtable memory.
-# Options are:
-#   heap_buffers:    on heap nio buffers
-#   offheap_buffers: off heap (direct) nio buffers
-#   offheap_objects: native memory, eliminating nio buffer heap overhead
-memtable_allocation_type: heap_buffers
-
-# Total space to use for commit logs on disk.
-#
-# If space gets above this value, Cassandra will flush every dirty CF
-# in the oldest segment and remove it.  So a small total commitlog space
-# will tend to cause more flush activity on less-active columnfamilies.
-#
-# The default value is 8192.
-# commitlog_total_space_in_mb: 8192
-
-# This sets the amount of memtable flush writer threads.  These will
-# be blocked by disk io, and each one will hold a memtable in memory
-# while blocked. 
-#
-# memtable_flush_writers defaults to the smaller of (number of disks,
-# number of cores), with a minimum of 2 and a maximum of 8.
-# 
-# If your data directories are backed by SSD, you should increase this
-# to the number of cores.
-#memtable_flush_writers: 8
-
-# A fixed memory pool size in MB for for SSTable index summaries. If left
-# empty, this will default to 5% of the heap size. If the memory usage of
-# all index summaries exceeds this limit, SSTables with low read rates will
-# shrink their index summaries in order to meet this limit.  However, this
-# is a best-effort process. In extreme conditions Cassandra may need to use
-# more than this amount of memory.
-index_summary_capacity_in_mb:
-
-# How frequently index summaries should be resampled.  This is done
-# periodically to redistribute memory from the fixed-size pool to sstables
-# proportional their recent read rates.  Setting to -1 will disable this
-# process, leaving existing index summaries at their current sampling level.
-index_summary_resize_interval_in_minutes: 60
-
-# Whether to, when doing sequential writing, fsync() at intervals in
-# order to force the operating system to flush the dirty
-# buffers. Enable this to avoid sudden dirty buffer flushing from
-# impacting read latencies. Almost always a good idea on SSDs; not
-# necessarily on platters.
-trickle_fsync: false
-trickle_fsync_interval_in_kb: 10240
-
-# TCP port, for commands and data
-# For security reasons, you should not expose this port to the internet.  Firewall it if needed.
-storage_port: 7000
-
-# SSL port, for encrypted communication.  Unused unless enabled in
-# encryption_options
-# For security reasons, you should not expose this port to the internet.  Firewall it if needed.
-ssl_storage_port: 7001
-
-# Address or interface to bind to and tell other Cassandra nodes to connect to.
-# You _must_ change this if you want multiple nodes to be able to communicate!
-#
-# Set listen_address OR listen_interface, not both. Interfaces must correspond
-# to a single address, IP aliasing is not supported.
-#
-# Leaving it blank leaves it up to InetAddress.getLocalHost(). This
-# will always do the Right Thing _if_ the node is properly configured
-# (hostname, name resolution, etc), and the Right Thing is to use the
-# address associated with the hostname (it might not be).
-#
-# Setting listen_address to 0.0.0.0 is always wrong.
-#
-# If you choose to specify the interface by name and the interface has an ipv4 and an ipv6 address
-# you can specify which should be chosen using listen_interface_prefer_ipv6. If false the first ipv4
-# address will be used. If true the first ipv6 address will be used. Defaults to false preferring
-# ipv4. If there is only one address it will be selected regardless of ipv4/ipv6.
-listen_address: 
-# listen_interface: eth0
-# listen_interface_prefer_ipv6: false
-
-# Address to broadcast to other Cassandra nodes
-# Leaving this blank will set it to the same value as listen_address
-# broadcast_address: 1.2.3.4
-
-# Internode authentication backend, implementing IInternodeAuthenticator;
-# used to allow/disallow connections from peer nodes.
-# internode_authenticator: org.apache.cassandra.auth.AllowAllInternodeAuthenticator
-
-# Whether to start the native transport server.
-# Please note that the address on which the native transport is bound is the
-# same as the rpc_address. The port however is different and specified below.
-start_native_transport: true
-# port for the CQL native transport to listen for clients on
-# For security reasons, you should not expose this port to the internet.  Firewall it if needed.
-native_transport_port: 9042
-# The maximum threads for handling requests when the native transport is used.
-# This is similar to rpc_max_threads though the default differs slightly (and
-# there is no native_transport_min_threads, idle threads will always be stopped
-# after 30 seconds).
-# native_transport_max_threads: 128
-#
-# The maximum size of allowed frame. Frame (requests) larger than this will
-# be rejected as invalid. The default is 256MB.
-# native_transport_max_frame_size_in_mb: 256
-
-# The maximum number of concurrent client connections.
-# The default is -1, which means unlimited.
-# native_transport_max_concurrent_connections: -1
-
-# The maximum number of concurrent client connections per source ip.
-# The default is -1, which means unlimited.
-# native_transport_max_concurrent_connections_per_ip: -1
-
-# Whether to start the thrift rpc server.
-start_rpc: true
-
-# The address or interface to bind the Thrift RPC service and native transport
-# server to.
-#
-# Set rpc_address OR rpc_interface, not both. Interfaces must correspond
-# to a single address, IP aliasing is not supported.
-#
-# Leaving rpc_address blank has the same effect as on listen_address
-# (i.e. it will be based on the configured hostname of the node).
-#
-# Note that unlike listen_address, you can specify 0.0.0.0, but you must also
-# set broadcast_rpc_address to a value other than 0.0.0.0.
-#
-# For security reasons, you should not expose this port to the internet.  Firewall it if needed.
-#
-# If you choose to specify the interface by name and the interface has an ipv4 and an ipv6 address
-# you can specify which should be chosen using rpc_interface_prefer_ipv6. If false the first ipv4
-# address will be used. If true the first ipv6 address will be used. Defaults to false preferring
-# ipv4. If there is only one address it will be selected regardless of ipv4/ipv6.
-rpc_address: 
-# rpc_interface: eth1
-# rpc_interface_prefer_ipv6: false
-
-# port for Thrift to listen for clients on
-rpc_port: 9160
-
-# RPC address to broadcast to drivers and other Cassandra nodes. This cannot
-# be set to 0.0.0.0. If left blank, this will be set to the value of
-# rpc_address. If rpc_address is set to 0.0.0.0, broadcast_rpc_address must
-# be set.
-broadcast_rpc_address: 
-
-# enable or disable keepalive on rpc/native connections
-rpc_keepalive: true
-
-# Cassandra provides two out-of-the-box options for the RPC Server:
-#
-# sync  -> One thread per thrift connection. For a very large number of clients, memory
-#          will be your limiting factor. On a 64 bit JVM, 180KB is the minimum stack size
-#          per thread, and that will correspond to your use of virtual memory (but physical memory
-#          may be limited depending on use of stack space).
-#
-# hsha  -> Stands for "half synchronous, half asynchronous." All thrift clients are handled
-#          asynchronously using a small number of threads that does not vary with the amount
-#          of thrift clients (and thus scales well to many clients). The rpc requests are still
-#          synchronous (one thread per active request). If hsha is selected then it is essential
-#          that rpc_max_threads is changed from the default value of unlimited.
-#
-# The default is sync because on Windows hsha is about 30% slower.  On Linux,
-# sync/hsha performance is about the same, with hsha of course using less memory.
-#
-# Alternatively,  can provide your own RPC server by providing the fully-qualified class name
-# of an o.a.c.t.TServerFactory that can create an instance of it.
-rpc_server_type: sync
-
-# Uncomment rpc_min|max_thread to set request pool size limits.
-#
-# Regardless of your choice of RPC server (see above), the number of maximum requests in the
-# RPC thread pool dictates how many concurrent requests are possible (but if you are using the sync
-# RPC server, it also dictates the number of clients that can be connected at all).
-#
-# The default is unlimited and thus provides no protection against clients overwhelming the server. You are
-# encouraged to set a maximum that makes sense for you in production, but do keep in mind that
-# rpc_max_threads represents the maximum number of client requests this server may execute concurrently.
-#
-# rpc_min_threads: 16
-# rpc_max_threads: 2048
-
-# uncomment to set socket buffer sizes on rpc connections
-# rpc_send_buff_size_in_bytes:
-# rpc_recv_buff_size_in_bytes:
-
-# Uncomment to set socket buffer size for internode communication
-# Note that when setting this, the buffer size is limited by net.core.wmem_max
-# and when not setting it it is defined by net.ipv4.tcp_wmem
-# See:
-# /proc/sys/net/core/wmem_max
-# /proc/sys/net/core/rmem_max
-# /proc/sys/net/ipv4/tcp_wmem
-# /proc/sys/net/ipv4/tcp_wmem
-# and: man tcp
-# internode_send_buff_size_in_bytes:
-# internode_recv_buff_size_in_bytes:
-
-# Frame size for thrift (maximum message length).
-thrift_framed_transport_size_in_mb: 15
-
-# Set to true to have Cassandra create a hard link to each sstable
-# flushed or streamed locally in a backups/ subdirectory of the
-# keyspace data.  Removing these links is the operator's
-# responsibility.
-incremental_backups: false
-
-# Whether or not to take a snapshot before each compaction.  Be
-# careful using this option, since Cassandra won't clean up the
-# snapshots for you.  Mostly useful if you're paranoid when there
-# is a data format change.
-snapshot_before_compaction: false
-
-# Whether or not a snapshot is taken of the data before keyspace truncation
-# or dropping of column families. The STRONGLY advised default of true 
-# should be used to provide data safety. If you set this flag to false, you will
-# lose data on truncation or drop.
-auto_snapshot: true
-
-# When executing a scan, within or across a partition, we need to keep the
-# tombstones seen in memory so we can return them to the coordinator, which
-# will use them to make sure other replicas also know about the deleted rows.
-# With workloads that generate a lot of tombstones, this can cause performance
-# problems and even exaust the server heap.
-# (http://www.datastax.com/dev/blog/cassandra-anti-patterns-queues-and-queue-like-datasets)
-# Adjust the thresholds here if you understand the dangers and want to
-# scan more tombstones anyway.  These thresholds may also be adjusted at runtime
-# using the StorageService mbean.
-tombstone_warn_threshold: 1000
-tombstone_failure_threshold: 100000
-
-# Granularity of the collation index of rows within a partition.
-# Increase if your rows are large, or if you have a very large
-# number of rows per partition.  The competing goals are these:
-#   1) a smaller granularity means more index entries are generated
-#      and looking up rows withing the partition by collation column
-#      is faster
-#   2) but, Cassandra will keep the collation index in memory for hot
-#      rows (as part of the key cache), so a larger granularity means
-#      you can cache more hot rows
-column_index_size_in_kb: 64
-
-
-# Log WARN on any batch size exceeding this value. 5kb per batch by default.
-# Caution should be taken on increasing the size of this threshold as it can lead to node instability.
-batch_size_warn_threshold_in_kb: 5
-
-# Fail any batch exceeding this value. 50kb (10x warn threshold) by default.
-batch_size_fail_threshold_in_kb: 50
-
-# Number of simultaneous compactions to allow, NOT including
-# validation "compactions" for anti-entropy repair.  Simultaneous
-# compactions can help preserve read performance in a mixed read/write
-# workload, by mitigating the tendency of small sstables to accumulate
-# during a single long running compactions. The default is usually
-# fine and if you experience problems with compaction running too
-# slowly or too fast, you should look at
-# compaction_throughput_mb_per_sec first.
-#
-# concurrent_compactors defaults to the smaller of (number of disks,
-# number of cores), with a minimum of 2 and a maximum of 8.
-# 
-# If your data directories are backed by SSD, you should increase this
-# to the number of cores.
-#concurrent_compactors: 1
-
-# Throttles compaction to the given total throughput across the entire
-# system. The faster you insert data, the faster you need to compact in
-# order to keep the sstable count down, but in general, setting this to
-# 16 to 32 times the rate you are inserting data is more than sufficient.
-# Setting this to 0 disables throttling. Note that this account for all types
-# of compaction, including validation compaction.
-compaction_throughput_mb_per_sec: 16
-
-# Log a warning when compacting partitions larger than this value
-compaction_large_partition_warning_threshold_mb: 100
-
-# When compacting, the replacement sstable(s) can be opened before they
-# are completely written, and used in place of the prior sstables for
-# any range that has been written. This helps to smoothly transfer reads 
-# between the sstables, reducing page cache churn and keeping hot rows hot
-sstable_preemptive_open_interval_in_mb: 50
-
-# Throttles all outbound streaming file transfers on this node to the
-# given total throughput in Mbps. This is necessary because Cassandra does
-# mostly sequential IO when streaming data during bootstrap or repair, which
-# can lead to saturating the network connection and degrading rpc performance.
-# When unset, the default is 200 Mbps or 25 MB/s.
-# stream_throughput_outbound_megabits_per_sec: 200
-
-# Throttles all streaming file transfer between the datacenters,
-# this setting allows users to throttle inter dc stream throughput in addition
-# to throttling all network stream traffic as configured with
-# stream_throughput_outbound_megabits_per_sec
-# inter_dc_stream_throughput_outbound_megabits_per_sec:
-
-# How long the coordinator should wait for read operations to complete
-read_request_timeout_in_ms: 50000
-# How long the coordinator should wait for seq or index scans to complete
-range_request_timeout_in_ms: 10000
-# How long the coordinator should wait for writes to complete
-write_request_timeout_in_ms: 20000
-# How long the coordinator should wait for counter writes to complete
-counter_write_request_timeout_in_ms: 5000
-# How long a coordinator should continue to retry a CAS operation
-# that contends with other proposals for the same row
-cas_contention_timeout_in_ms: 1000
-# How long the coordinator should wait for truncates to complete
-# (This can be much longer, because unless auto_snapshot is disabled
-# we need to flush first so we can snapshot before removing the data.)
-truncate_request_timeout_in_ms: 60000
-# The default timeout for other, miscellaneous operations
-request_timeout_in_ms: 10000
-
-# Enable operation timeout information exchange between nodes to accurately
-# measure request timeouts.  If disabled, replicas will assume that requests
-# were forwarded to them instantly by the coordinator, which means that
-# under overload conditions we will waste that much extra time processing 
-# already-timed-out requests.
-#
-# Warning: before enabling this property make sure to ntp is installed
-# and the times are synchronized between the nodes.
-cross_node_timeout: false
-
-# Enable socket timeout for streaming operation.
-# When a timeout occurs during streaming, streaming is retried from the start
-# of the current file. This _can_ involve re-streaming an important amount of
-# data, so you should avoid setting the value too low.
-# Default value is 3600000, which means streams timeout after an hour.
-# streaming_socket_timeout_in_ms: 3600000
-
-# phi value that must be reached for a host to be marked down.
-# most users should never need to adjust this.
-# phi_convict_threshold: 8
-
-# endpoint_snitch -- Set this to a class that implements
-# IEndpointSnitch.  The snitch has two functions:
-# - it teaches Cassandra enough about your network topology to route
-#   requests efficiently
-# - it allows Cassandra to spread replicas around your cluster to avoid
-#   correlated failures. It does this by grouping machines into
-#   "datacenters" and "racks."  Cassandra will do its best not to have
-#   more than one replica on the same "rack" (which may not actually
-#   be a physical location)
-#
-# IF YOU CHANGE THE SNITCH AFTER DATA IS INSERTED INTO THE CLUSTER,
-# YOU MUST RUN A FULL REPAIR, SINCE THE SNITCH AFFECTS WHERE REPLICAS
-# ARE PLACED.
-#
-# Out of the box, Cassandra provides
-#  - SimpleSnitch:
-#    Treats Strategy order as proximity. This can improve cache
-#    locality when disabling read repair.  Only appropriate for
-#    single-datacenter deployments.
-#  - GossipingPropertyFileSnitch
-#    This should be your go-to snitch for production use.  The rack
-#    and datacenter for the local node are defined in
-#    cassandra-rackdc.properties and propagated to other nodes via
-#    gossip.  If cassandra-topology.properties exists, it is used as a
-#    fallback, allowing migration from the PropertyFileSnitch.
-#  - PropertyFileSnitch:
-#    Proximity is determined by rack and data center, which are
-#    explicitly configured in cassandra-topology.properties.
-#  - Ec2Snitch:
-#    Appropriate for EC2 deployments in a single Region. Loads Region
-#    and Availability Zone information from the EC2 API. The Region is
-#    treated as the datacenter, and the Availability Zone as the rack.
-#    Only private IPs are used, so this will not work across multiple
-#    Regions.
-#  - Ec2MultiRegionSnitch:
-#    Uses public IPs as broadcast_address to allow cross-region
-#    connectivity.  (Thus, you should set seed addresses to the public
-#    IP as well.) You will need to open the storage_port or
-#    ssl_storage_port on the public IP firewall.  (For intra-Region
-#    traffic, Cassandra will switch to the private IP after
-#    establishing a connection.)
-#  - RackInferringSnitch:
-#    Proximity is determined by rack and data center, which are
-#    assumed to correspond to the 3rd and 2nd octet of each node's IP
-#    address, respectively.  Unless this happens to match your
-#    deployment conventions, this is best used as an example of
-#    writing a custom Snitch class and is provided in that spirit.
-#
-# You can use a custom Snitch by setting this to the full class name
-# of the snitch, which will be assumed to be on your classpath.
-endpoint_snitch: Ec2Snitch
-
-# controls how often to perform the more expensive part of host score
-# calculation
-dynamic_snitch_update_interval_in_ms: 100 
-# controls how often to reset all host scores, allowing a bad host to
-# possibly recover
-dynamic_snitch_reset_interval_in_ms: 600000
-# if set greater than zero and read_repair_chance is < 1.0, this will allow
-# 'pinning' of replicas to hosts in order to increase cache capacity.
-# The badness threshold will control how much worse the pinned host has to be
-# before the dynamic snitch will prefer other replicas over it.  This is
-# expressed as a double which represents a percentage.  Thus, a value of
-# 0.2 means Cassandra would continue to prefer the static snitch values
-# until the pinned host was 20% worse than the fastest.
-dynamic_snitch_badness_threshold: 0.1
-
-# request_scheduler -- Set this to a class that implements
-# RequestScheduler, which will schedule incoming client requests
-# according to the specific policy. This is useful for multi-tenancy
-# with a single Cassandra cluster.
-# NOTE: This is specifically for requests from the client and does
-# not affect inter node communication.
-# org.apache.cassandra.scheduler.NoScheduler - No scheduling takes place
-# org.apache.cassandra.scheduler.RoundRobinScheduler - Round robin of
-# client requests to a node with a separate queue for each
-# request_scheduler_id. The scheduler is further customized by
-# request_scheduler_options as described below.
-request_scheduler: org.apache.cassandra.scheduler.NoScheduler
-
-# Scheduler Options vary based on the type of scheduler
-# NoScheduler - Has no options
-# RoundRobin
-#  - throttle_limit -- The throttle_limit is the number of in-flight
-#                      requests per client.  Requests beyond 
-#                      that limit are queued up until
-#                      running requests can complete.
-#                      The value of 80 here is twice the number of
-#                      concurrent_reads + concurrent_writes.
-#  - default_weight -- default_weight is optional and allows for
-#                      overriding the default which is 1.
-#  - weights -- Weights are optional and will default to 1 or the
-#               overridden default_weight. The weight translates into how
-#               many requests are handled during each turn of the
-#               RoundRobin, based on the scheduler id.
-#
-# request_scheduler_options:
-#    throttle_limit: 80
-#    default_weight: 5
-#    weights:
-#      Keyspace1: 1
-#      Keyspace2: 5
-
-# request_scheduler_id -- An identifier based on which to perform
-# the request scheduling. Currently the only valid option is keyspace.
-# request_scheduler_id: keyspace
-
-# Enable or disable inter-node encryption
-# Default settings are TLS v1, RSA 1024-bit keys (it is imperative that
-# users generate their own keys) TLS_RSA_WITH_AES_128_CBC_SHA as the cipher
-# suite for authentication, key exchange and encryption of the actual data transfers.
-# Use the DHE/ECDHE ciphers if running in FIPS 140 compliant mode.
-# NOTE: No custom encryption options are enabled at the moment
-# The available internode options are : all, none, dc, rack
-#
-# If set to dc cassandra will encrypt the traffic between the DCs
-# If set to rack cassandra will encrypt the traffic between the racks
-#
-# The passwords used in these options must match the passwords used when generating
-# the keystore and truststore.  For instructions on generating these files, see:
-# http://download.oracle.com/javase/6/docs/technotes/guides/security/jsse/JSSERefGuide.html#CreateKeystore
-#
-server_encryption_options:
-    internode_encryption: none
-    keystore: conf/.keystore
-    keystore_password: cassandra
-    truststore: conf/.truststore
-    truststore_password: cassandra
-    # More advanced defaults below:
-    # protocol: TLS
-    # algorithm: SunX509
-    # store_type: JKS
-    # cipher_suites: [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA]
-    # require_client_auth: false
-
-# enable or disable client/server encryption.
-client_encryption_options:
-    enabled: false
-    keystore: conf/.keystore
-    keystore_password: cassandra
-    # require_client_auth: false
-    # Set trustore and truststore_password if require_client_auth is true
-    # truststore: conf/.truststore
-    # truststore_password: cassandra
-    # More advanced defaults below:
-    # protocol: TLS
-    # algorithm: SunX509
-    # store_type: JKS
-    # cipher_suites: [TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_DHE_RSA_WITH_AES_128_CBC_SHA,TLS_DHE_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA]
-
-# internode_compression controls whether traffic between nodes is
-# compressed.
-# can be:  all  - all traffic is compressed
-#          dc   - traffic between different datacenters is compressed
-#          none - nothing is compressed.
-internode_compression: all
-
-# Enable or disable tcp_nodelay for inter-dc communication.
-# Disabling it will result in larger (but fewer) network packets being sent,
-# reducing overhead from the TCP protocol itself, at the cost of increasing
-# latency if you block for cross-datacenter responses.
-inter_dc_tcp_nodelay: false
-
-# TTL for different trace types used during logging of the repair process.
-tracetype_query_ttl: 86400
-tracetype_repair_ttl: 604800
-
-# UDFs (user defined functions) are disabled by default.
-# As of Cassandra 2.2, there is no security manager or anything else in place that
-# prevents execution of evil code. CASSANDRA-9402 will fix this issue for Cassandra 3.0.
-# This will inherently be backwards-incompatible with any 2.2 UDF that perform insecure
-# operations such as opening a socket or writing to the filesystem.
-enable_user_defined_functions: false
-
-# The default Windows kernel timer and scheduling resolution is 15.6ms for power conservation.
-# Lowering this value on Windows can provide much tighter latency and better throughput, however
-# some virtualized environments may see a negative performance impact from changing this setting
-# below their system default. The sysinternals 'clockres' tool can confirm your system's default
-# setting.
-windows_timer_interval: 1


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