@Override
public TieredMergePolicy newMergePolicy() {
CustomTieredMergePolicyProvider mergePolicy;
if (asyncMerge) {
mergePolicy = new EnableMergeTieredMergePolicyProvider(this);
} else {
mergePolicy = new CustomTieredMergePolicyProvider(this);
}
mergePolicy.setUseCompoundFile(compoundFormat);
mergePolicy.setForceMergeDeletesPctAllowed(forceMergeDeletesPctAllowed);
mergePolicy.setFloorSegmentMB(floorSegment.mbFrac());
mergePolicy.setMaxMergeAtOnce(maxMergeAtOnce);
mergePolicy.setMaxMergeAtOnceExplicit(maxMergeAtOnceExplicit);
mergePolicy.setMaxMergedSegmentMB(maxMergedSegment.mbFrac());
mergePolicy.setSegmentsPerTier(segmentsPerTier);
mergePolicy.setReclaimDeletesWeight(reclaimDeletesWeight);
return mergePolicy;
}
@Override
public void onRefreshSettings(Settings settings) {
double expungeDeletesPctAllowed =
settings.getAsDouble(
"index.merge.policy.expunge_deletes_allowed",
TieredMergePolicyProvider.this.forceMergeDeletesPctAllowed);
if (expungeDeletesPctAllowed != TieredMergePolicyProvider.this.forceMergeDeletesPctAllowed) {
logger.info(
"updating [expunge_deletes_allowed] from [{}] to [{}]",
TieredMergePolicyProvider.this.forceMergeDeletesPctAllowed,
expungeDeletesPctAllowed);
TieredMergePolicyProvider.this.forceMergeDeletesPctAllowed = expungeDeletesPctAllowed;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setForceMergeDeletesPctAllowed(expungeDeletesPctAllowed);
}
}
ByteSizeValue floorSegment =
settings.getAsBytesSize(
"index.merge.policy.floor_segment", TieredMergePolicyProvider.this.floorSegment);
if (!floorSegment.equals(TieredMergePolicyProvider.this.floorSegment)) {
logger.info(
"updating [floor_segment] from [{}] to [{}]",
TieredMergePolicyProvider.this.floorSegment,
floorSegment);
TieredMergePolicyProvider.this.floorSegment = floorSegment;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setFloorSegmentMB(floorSegment.mbFrac());
}
}
int maxMergeAtOnce =
settings.getAsInt(
"index.merge.policy.max_merge_at_once",
TieredMergePolicyProvider.this.maxMergeAtOnce);
if (maxMergeAtOnce != TieredMergePolicyProvider.this.maxMergeAtOnce) {
logger.info(
"updating [max_merge_at_once] from [{}] to [{}]",
TieredMergePolicyProvider.this.maxMergeAtOnce,
maxMergeAtOnce);
TieredMergePolicyProvider.this.maxMergeAtOnce = maxMergeAtOnce;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setMaxMergeAtOnce(maxMergeAtOnce);
}
}
int maxMergeAtOnceExplicit =
settings.getAsInt(
"index.merge.policy.max_merge_at_once_explicit",
TieredMergePolicyProvider.this.maxMergeAtOnceExplicit);
if (maxMergeAtOnceExplicit != TieredMergePolicyProvider.this.maxMergeAtOnceExplicit) {
logger.info(
"updating [max_merge_at_once_explicit] from [{}] to [{}]",
TieredMergePolicyProvider.this.maxMergeAtOnceExplicit,
maxMergeAtOnceExplicit);
TieredMergePolicyProvider.this.maxMergeAtOnceExplicit = maxMergeAtOnceExplicit;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setMaxMergeAtOnceExplicit(maxMergeAtOnceExplicit);
}
}
ByteSizeValue maxMergedSegment =
settings.getAsBytesSize(
"index.merge.policy.max_merged_segment",
TieredMergePolicyProvider.this.maxMergedSegment);
if (!maxMergedSegment.equals(TieredMergePolicyProvider.this.maxMergedSegment)) {
logger.info(
"updating [max_merged_segment] from [{}] to [{}]",
TieredMergePolicyProvider.this.maxMergedSegment,
maxMergedSegment);
TieredMergePolicyProvider.this.maxMergedSegment = maxMergedSegment;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setFloorSegmentMB(maxMergedSegment.mbFrac());
}
}
double segmentsPerTier =
settings.getAsDouble(
"index.merge.policy.segments_per_tier",
TieredMergePolicyProvider.this.segmentsPerTier);
if (segmentsPerTier != TieredMergePolicyProvider.this.segmentsPerTier) {
logger.info(
"updating [segments_per_tier] from [{}] to [{}]",
TieredMergePolicyProvider.this.segmentsPerTier,
segmentsPerTier);
TieredMergePolicyProvider.this.segmentsPerTier = segmentsPerTier;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setSegmentsPerTier(segmentsPerTier);
}
}
double reclaimDeletesWeight =
settings.getAsDouble(
"index.merge.policy.reclaim_deletes_weight",
TieredMergePolicyProvider.this.reclaimDeletesWeight);
if (reclaimDeletesWeight != TieredMergePolicyProvider.this.reclaimDeletesWeight) {
logger.info(
"updating [reclaim_deletes_weight] from [{}] to [{}]",
TieredMergePolicyProvider.this.reclaimDeletesWeight,
reclaimDeletesWeight);
TieredMergePolicyProvider.this.reclaimDeletesWeight = reclaimDeletesWeight;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setReclaimDeletesWeight(reclaimDeletesWeight);
}
}
boolean compoundFormat =
settings.getAsBoolean(
"index.compound_format", TieredMergePolicyProvider.this.compoundFormat);
if (compoundFormat != TieredMergePolicyProvider.this.compoundFormat) {
logger.info(
"updating index.compound_format from [{}] to [{}]",
TieredMergePolicyProvider.this.compoundFormat,
compoundFormat);
TieredMergePolicyProvider.this.compoundFormat = compoundFormat;
for (CustomTieredMergePolicyProvider policy : policies) {
policy.setUseCompoundFile(compoundFormat);
}
}
fixSettingsIfNeeded();
}